Utilizing Liquid Membrane (e.g., Emulsion) In Liquid/liquid Solvent Or Colloidal Extraction Patents (Class 210/643)
  • Patent number: 11110374
    Abstract: A system, module and method for continuous countercurrent spiral chromatography are disclosed. The module includes an input port for receiving an input solution, a first mixer for mixing the input solution with a recycled solution to produce a first mixed output, a stage I separator for concentrating the first mixed output to produce a stage I solid fraction, a second mixer for mixing the stage I solid fraction from the stage I separator and an optional buffer solution to produce a second mixed output, and a stage II separator for concentrating the second mixed output to produce a stage II solid fraction which exits the module. At least one separator is a spiral separator. The system includes a plurality of modules, and at least one of the plurality of modules includes a spiral separator. The method includes purifying an unpurified solution with the plurality of modules.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: September 7, 2021
    Assignee: CHROMATAN INC.
    Inventors: Oleg Shinkazh, Dmitriy Fedorenko
  • Patent number: 10710905
    Abstract: Disclosed are water treatment processes enabling cations and anions to be extracted from an aqueous effluent by contacting the aqueous effluents with a hydrophobic liquid phase, also including at least one step of contacting the effluent with a hydrophobic solid membrane, in order to remove the residual hydrophobic liquid membrane in the effluent treated by coalescence on the hydrophobic solid membrane. The processes include seawater desalination processes. Also disclosed is a desalination module as well as its facility therefor, including at least one coalescer.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 14, 2020
    Assignee: SUEZ GROUPE
    Inventors: Anne Brehant, Angélique Fabre, Marc Philibert, Laurent Guey
  • Patent number: 10293094
    Abstract: The present invention relates to systems, methods and uses for recycling at least a part of water lost during various renal replacement therapy processes, e.g. in the preparation of a fresh dialysate solution or fresh reconstitution fluid for kidney disease dialysis and hemofiltration by utilizing water from the spent fluids. The system of the invention is useful in hemodialysis and in peritoneal dialysis as well as in hemofiltration for reuse of water from filtrates and spent fluids. In addition, the system of the invention is useful in the development of a renal assist device or artificial kidney.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: May 21, 2019
    Assignee: Aquaporin A/S
    Inventors: Marianne Eleonora Spanget Larsen, Peter Holme Jensen, Michael Padkjær Abildgren
  • Patent number: 9708469
    Abstract: In an example, a process of forming a photoisomerizing azobenzene polymer includes chemically reacting an azobenzene material that includes at least two chlorocarbonyl functional groups with an amine to form a photoisomerizing azobenzene polymer. The photoisomerizing azobenzene polymer has a polymer chain that includes a first chlorocarbonyl group disposed at a first end of the polymer chain, a plurality of repeating azobenzene monomer units, and a second chlorocarbonyl group disposed at a second end of the polymer chain.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: July 18, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Jason T. Wertz
  • Patent number: 9701817
    Abstract: In an example, a composition of matter includes a particle, a photoisomerizing polymer bonded to a first portion of the particle, and a chelating material bonded to a second portion of the particle.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: July 11, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Jason T. Wertz
  • Patent number: 9587182
    Abstract: The present invention is related to formulations including one or more block copolymers with low polydispersity and bifunctionalized with amines, and an ionic liquid. A method of demulsifying, dehydrating, and desalting crude oils having API gravity ranging between 8 to 30 admixes the formulation with the crude oil in an amount effective to demulsify, dehydrate and/or desalt the crude oils.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: March 7, 2017
    Assignee: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Eugenio Alejandro Flores Oropeza, Laura Verónica Castro Sotelo, Alfonso López Ortega, José Gonzalo Hernández Cortez, Fernando Alvarez Ramírez, Arquímedes Estrada Martínez, Flavio Salvador Vázquez Moreno
  • Patent number: 9353609
    Abstract: A method for treating a deposit is disclosed, wherein the deposit comprises a hydrophobic portion and an inorganic portion, the method including but not limited to contacting the deposit with a treating material to form a treated deposit, the treating material comprising peroxygen and surfactant and contacting the treated deposit with an acid. A product resulting from using the method is also disclosed.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: May 31, 2016
    Assignee: NW24 HOLDINGS, LLC
    Inventors: Charles Talley, Keith Weber
  • Publication number: 20150122734
    Abstract: A method of separating one or more valuable metal cations from an ionic solution by (a) contacting the ionic solution with an activated photoisomerizable host molecule containing a photoisomerizable moiety and a host moiety, where the photoisomerizable moiety has first and second states, and where the host moiety has a greater affinity for a metal cation when the photoisomerizable moiety is in the first state (active binding state) than when the photoisomerizable moiety is in the second state (release state), so that an ion-host molecule association is formed, and (b) separating the ion-host molecule association from the ionic solution. Also disclosed are photoisomerizable host molecules, a method of recovering valuable metals from a waste stream using the photoisomerizable host molecules, and an apparatus comprising a photoisomerizable host molecule attached to a support.
    Type: Application
    Filed: June 7, 2013
    Publication date: May 7, 2015
    Applicant: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Richard E. Riman, Brook Porter
  • Patent number: 8999168
    Abstract: A system and method for the extraction of americium from radioactive waste solutions. The method includes the transfer of highly oxidized americium from an acidic aqueous feed solution through an immobilized liquid membrane to an organic receiving solvent, for example tributyl phosphate. The immobilized liquid membrane includes porous support and separating layers loaded with tributyl phosphate. The extracted solution is subsequently stripped of americium and recycled at the immobilized liquid membrane as neat tributyl phosphate for the continuous extraction of americium. The sequestered americium can be used as a nuclear fuel, a nuclear fuel component or a radiation source, and the remaining constituent elements in the aqueous feed solution can be stored in glassified waste forms substantially free of americium.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: April 7, 2015
    Assignee: UT-Battelle, LLC
    Inventors: Ramesh R. Bhave, Melanie M. DeBusk, Guillermo D. DelCul, Laetitia H. Delmau, Chaitanya K. Narula
  • Publication number: 20150076065
    Abstract: The present invention relates to a method of treating aqueous fluid and apparatus therefor. The method comprises adding an organic compound to a mass of aqueous fluid comprising at least one Kinetic Hydrate Inhibitor (KHI). The organic compound comprises a hydrophobic tail and a hydrophilic head. The hydrophobic tail comprises at least one C—H bond and the hydrophilic head comprises at least one of: a hydroxyl (—OH) group; and a carboxyl (—COOH) group.
    Type: Application
    Filed: August 14, 2014
    Publication date: March 19, 2015
    Inventors: Ross ANDERSON, Saeid Mazloum VAJARI, Bahman TOHIDI
  • Patent number: 8858799
    Abstract: The invention relates to a method and arrangement for separating two solutions mixed in dispersion into two solution phases in a liquid-liquid extraction separation cell. The arrangement includes a first guide wall extending along the whole width of the cell with respect to the vertical direction at an inclined angle. The first guide wall includes a bottom edge, which is located at a distance from the cell bottom, so that a clearance gap is formed between the bottom edge and the cell bottom. The arrangement also includes a second guide wall essentially parallel with the first guide wall and placed at a distance therefrom. Between the first guide wall and the second guide wall an uptake shaft is formed extending diagonally upwards at the inclined angle. The second guide wall is pressed tightly against the cell bottom, and includes a number of vertical slots.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: October 14, 2014
    Assignee: Outotec Oyj
    Inventors: Bror Nyman, Eero Ekman, Pertti Pekkala, Hannu Laitala, Rami Saario
  • Publication number: 20140228549
    Abstract: A method to at least one of separate and purify biomolecules via an aqueous two-phase extraction includes providing the biomolecules in a first aqueous phase, providing a porous material comprising pores, providing a second aqueous phase at least in the pores of the porous material, and, at least one of separating and purifying the biomolecules by partially transferring the biomolecules from the first aqueous phase to the second aqueous phase. A dissolution of the biomolecules into the second aqueous phase in the pores of the porous material occurs during the at least one of separating and purifying.
    Type: Application
    Filed: March 27, 2012
    Publication date: August 14, 2014
    Applicant: TECHNISCHE UNIVERSITAET DORTMUND
    Inventors: Gerhard Schembecker, Bernhard Burghoff, Fatma Alexia Van Winssen
  • Patent number: 8796433
    Abstract: The present invention provides compositions, systems and methods for demulsifying an emulsion including an aqueous phase and an organic phase by adding an effective amount of a composition comprising at least one quaternary organopolysiloxane or salt thereof to the emulsion, the composition optionally including at least one of quaternary epihalohydrin/polyamine copolymers or salts, and/or (poly)diallyldimethylammonium halides.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: August 5, 2014
    Assignees: Kroff Chemical Company, Dow Agrosciences LLC
    Inventors: Paul Rey, David M. Sunderlik, Steven P. Ceplecha
  • Patent number: 8747674
    Abstract: A process for the treatment of water/oil (W/O) emulsions is described which includes the addition of an ionic liquid, under heating, to a water/oil emulsion containing between 0.5% and 85% of water per volume as a dispersion phase, until the concentration of the ionic liquid in the emulsion remains within the range of 0.01 ?L/g to 100 ?L/g. The ionic liquid used is a salt of a general C+ A? formula in a liquid state at temperatures below 150° C., where A? is an anion and C+ is a cation, which has at least a hydrophobic alkyl chain connected to a cation group. The heating method includes conventional heating and heating via microwaves. In the heating via microwaves, the salts of the general C+ A? formula present synergic behavior in separation efficiency in relation to conventional heating.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: June 10, 2014
    Assignee: Petroleo Brasileiro S.A.—Petrobras
    Inventors: Regina Celia Lourenco Guimarães, Bianca Machado da Silva Ferreira, Maria de Fatima Pereira dos Santos, Ricardo Andre Guarnieri, Montserrat Fortuny Heredia, Cláudio Dariva, Alexandre Ferreira Santos, Rita de Cássia Bomfim Lemos, Lisiane dos Santos Freitas
  • Patent number: 8728321
    Abstract: This invention relates to a process for removing solid matter from process liquids that are miscible with water. A brine made from water and dissolved salt and which is more dense than the process liquid is placed underneath and in contact with the mixture of process liquid and solid matter. The particles and pieces of solid matter move from the process liquid and then through the brine. In so doing the process liquid that is carried with the solid matter is displaced by the more dense brine.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: May 20, 2014
    Assignee: Cameron International Corporation
    Inventor: Craig Anthony Nazzer
  • Publication number: 20140069865
    Abstract: This method comprises bringing drops to be separated into contact with an interface (40) suitable for allowing an osmotic equilibrium between the content of each drop to be separated. The method comprises an osmotic flow between the drops (20A) of the first group of drops through the interface (40) in order to modify the density of each drop (20A) of the first group of drops and the separation of the drops (20A, 20B) according to the density thereof or a combination of the density and the volume in order to isolate the drops (20A) of the first group of drops from the drops (20B) of a second group of drops.
    Type: Application
    Filed: March 21, 2012
    Publication date: March 13, 2014
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.), UNIVERSITE PARIS DIDEROT-PARIS 7, ECOLE NORMALE SUPERIEURE DE LYON, UNIVERSITE PIERRE ET MARIE CURIE (PARIS 6)
    Inventors: Gaël Yvert, Jérôme Bibette, Jean-Marie Baudry, Laurent Boitard, Nicolas Bremond, Denis Cottinet
  • Patent number: 8617396
    Abstract: The development and application of a novel non-polar oil recovery process utilizing a non-dispersive solvent extraction method to coalesce and recover oil from a bio-cellular aqueous slurry is described herein. The process could apply to recovery of algal oil from a lysed or non-lysed algae slurry, recovery of Omega fatty acids from a bio-cellular aqueous feed, recovery of Beta-carotene from a bio-cellular aqueous feed and for the removal from produced water in oil production and similar type applications. The technique of the present invention utilizes a microporous hollow fiber (MHF) membrane contactor. The non-polar oil recovery process described herein can be coupled to a collecting fluid (a non-polar solvent such as heptane, a biodiesel mixture or the previously extracted oil) that is circulated through the hollow fiber membrane. In cases where the biodiesel mixture or the previously extracted oil is used the solvent recovery step (e.g. distillation) can be eliminated.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: December 31, 2013
    Assignees: Board of Regents, The University of Texas System, Organic Fuels Algae Technologies, LLC
    Inventors: Peter B. Kipp, Rhykka Connelly, Frank Seibert, Martin Poenie, Robert E. Hebner, Michael D. Werst, Robert Pearsall, Lynn E. Katz, Kerry A. Kinney
  • Patent number: 8590710
    Abstract: A device separating target particles in a fluid sample includes first through third multi-orifice flow fractionation (“MOFF”) channels, each including a multi-orifice segment with an inlet and an outlet at opposite ends, and an alternating series of contraction channels and expansion chambers interconnected in a lengthwise direction; a first separation unit including a first separation channel which is interconnected in fluid communication with a center region of the outlet of the first MOFF channel, and first branch channels which are interconnected in fluid communication with sidewall regions of the outlet of the first MOFF channel, and respectively with inlets of the second and third MOFF channels; and buffer inlets which are connected to the inlets of the second and third MOFF channels and through which a buffer flows into the second and third MOFF channels.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: November 26, 2013
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Tae-seok Sim, Jeong-gun Lee, Hyo-il Jung, Ki-ho Kwon
  • Patent number: 8580116
    Abstract: A process for fractionating the constituents of a solution obtained by extracting plant or animal material with an aqueous-organic solvent where the aqueous-organic solvent is a mixture of water and a water-miscible organic solvent, generally including the steps of contacting the solution with a near-critical fluid to produce a raffinate phase containing high polarity constituents and water, and a near-critical fluid phase containing low to medium polarity constituents, separating the near-critical fluid phase from the raffinate phase, and recovering the low to medium polarity constituents from the near-critical fluid phase and the high polarity constituents from the raffinate phase.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: November 12, 2013
    Assignee: Industrial Research Limited
    Inventors: Owen John Catchpole, John Bertram Grey, Nicola Emma Durling, Kameron Gary Dunn
  • Patent number: 8557120
    Abstract: The invention relates to a process for collectively separating all the actinides (III), (IV), (V) and (VI) present in a strongly acidic aqueous phase, from the fission products, and in particular from the lanthanides, which are also present in this phase, using two extractants that operate in unconnected chemical fields. Applications: reprocessing of irradiated nuclear fuels, especially to recover plutonium, neptunium, americium, curium and, possibly, uranium present in trace amounts, in a grouped manner but selectively with respect to the lanthanides, from a solution for dissolution of an irradiated nuclear fuel, downstream of a uranium extraction cycle.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: October 15, 2013
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Xavier Heres, Manuel Miguirditchian, Pascal Baron, Laurence Chareyre
  • Patent number: 8535535
    Abstract: Hydrophobins for stabilizing phases in biphasic liquid systems.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: September 17, 2013
    Assignee: BASF SE
    Inventors: Marcus Guzmann, Peter Eck, Ulf Baus
  • Patent number: 8535536
    Abstract: A split thin-flow separations device can include a fluid channel having an inlet zone, an outlet zone, and a transport region between the inlet zone and outlet zone. The inlet zone includes a sample inlet and a carrier fluid inlet which are fluidly separated by an inlet splitter to minimize mixing of fluids from respective inlets in the inlet zone. The transport region can be a substantially open channel. Similar to the inlet zone, the outlet zone can include a sample outlet and a carrier outlet which are fluidly separated by an outlet splitter to segregate portions of a fluid into each of the two outlets as the fluid enters the outlet zone. A plurality of cross-flow inducers can also be oriented along a wall of the fluid channel in the transport region. The cross-flow inducers are oriented to form a cross-flow field across the transport region.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: September 17, 2013
    Assignee: University of Utah Research Foundation
    Inventors: Bruce K. Gale, Himanshu Sant, Venu Madhav, Srinivas Merugu
  • Patent number: 8470180
    Abstract: A device, system and method for exchanging components between first and second fluids by direct contact in a microfluidic channel. The fluids flow as thin layers in the channel. One of the fluids is passed through a filter upon exiting the channel and is recycled through a secondary processor which changes the fluid's properties. The recycled fluid is reused for further exchange. The filter excludes blood cells from the recycled fluid and prevents or limits clogging of the filter. The secondary processor removes metabolic waste and water by diafiltration.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: June 25, 2013
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Edward F. Leonard, Alan C. West, Christian Paul Aucoin, Edgar E. Nanne
  • Patent number: 8444857
    Abstract: A method for purifying a fluorinated carboxylic acid having an etheric oxygen atom and its derivative, with small decomposition and inclusion of impurities. A liquid containing at least one member selected from the group consisting of a fluorinated compound represented by application formulae (1) and (2) is held at a heating temperature of at most 150° C. and distilled. Further, the liquid is a liquid obtained from any of a waste liquid after an aqueous emulsion of a fluoropolymer is coagulated and the fluoropolymer is separated, an aqueous liquid obtained by cleaning an exhaust gas in a step of drying and/or a step of heat treatment of the separated fluoropolymer, and a liquid obtained by cleaning an anion exchange resin which has been brought into contact with the waste liquid or an aqueous dispersion obtained from the aqueous emulsion of the fluoropolymer, with an alkaline aqueous solution.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: May 21, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Hirokazu Takagi, Ryuji Seki
  • Patent number: 8414772
    Abstract: A method and a device for differentiation of substances in a body fluid, such as blood, plasma or used peritoneal dialysis fluid, for example for hemodialysis. The device has a compartment having several inlets for entering a body fluid, a transition fluid and a diffusion fluid for flowing parallel with each other in laminar flow layers with substantially equal flow velocities. The transition fluid layer is interposed between the body fluid layer and the diffusion fluid layer. The compartment further has a first outlet for removing the body fluid and the transition fluid and a second outlet for removing the diffusion fluid. Pumps are arranged for controlling the flow velocities so that a marker substance, such as albumin, will not diffuse from the body fluid layer across the transition layer, during the passage of the body fluid from the inlet to the outlet of the compartment.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: April 9, 2013
    Assignee: Pacar Holding AB
    Inventors: Carl Tyren, Jarl Ahlmen
  • Publication number: 20120298579
    Abstract: An apparatus for separating hydrophilic material from hydrophobic material, comprising: (a) a body having a first and second parallel walls defining an elongated cavity; (b) a water-absorbing material in the cavity along the first wall and having a surface essentially parallel to the second wall, thereby defining a channel between the surface and the second wall; (c) a first inlet having a first inlet end disposed in the channel, the first inlet being configured for injecting a mixture of hydrophilic and hydrophobic material; (d) a first outlet having a first outlet end disposed in the channel proximate the surface downstream of the first inlet end and configured for removing the hydrophilic material; and (e) a second outlet having a second outlet end disposed in the channel a distance from the surface downstream of the first inlet end and configured for removing the hydrophobic material.
    Type: Application
    Filed: May 24, 2012
    Publication date: November 29, 2012
    Applicant: Bucknell University
    Inventors: Erin Lynne Jablonski, Janet T. Tesfai, Renee N. Perry, Daniel Eric Mayo
  • Publication number: 20120255905
    Abstract: The particle components may be collected by using a phenomenon that the particle components in the aqueous phase aggregate at the liquid-to-liquid interface. Both of the particle components and the dissolved components in the aqueous phase may be simultaneously collected if combined with liquid-liquid extraction phenomenon that the dissolved components in the aqueous phase are collected into the solvent phase through the liquid-to-liquid interface. The aggregation phenomenon of the particle components at the liquid-to-liquid interface may be promoted by using an emulsion flow method, a method of applying mechanical external forces (such as stirring and vibrating) or another method combining both the above-mentioned methods.
    Type: Application
    Filed: June 19, 2012
    Publication date: October 11, 2012
    Inventors: Hirochika Naganawa, Nobuyuki Yanase, Tetsushi Nagano
  • Patent number: 8273312
    Abstract: A liquid testing assembly for testing a liquid, the assembly comprising a test vessel and a stopper adapted to fit into a free end of the vessel. The stopper substantially hermetically seals the test vessel from the ambient. Further, the assembly includes a support coated with one or more identifying materials for identifying one or more constituents of the liquid. The support is fixed in the stopper and/or the vessel and extends into its interior for a predetermined distance. The liquid testing assembly when assembled is pre-evacuated to a predetermined vacuum sufficient to draw a predetermined volume of liquid to be sampled into the test vessel. The predetermined volume is of such an amount that it wets the one or more identifying materials ensuring identification of one or more constituents present in the liquid. A kit employing the liquid testing assembly is also discussed.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: September 25, 2012
    Assignee: Association for Public Health
    Inventors: Gadi Porat, Joel Stern, Boaz Rimon, Yoram Cohen
  • Patent number: 8268975
    Abstract: The present invention provides compositions, systems and methods for demulsifying an emulsion including an aqueous phase and an organic phase by adding an effective amount of a composition comprising at least one quaternary organopolysiloxane or salt thereof to the emulsion, the composition optionally including at least one of quaternary epihalohydrin/polyamine copolymers or salts, and/or (poly)diallyldimethylammonium halides.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: September 18, 2012
    Assignees: DOW Agrosciences LLC, Kroff Chemical Company
    Inventors: Paul Rey, Steve P. Ceplecha, David M. Sunderlik
  • Patent number: 8257593
    Abstract: A device, system and method for exchanging components between first and second fluids by direct contact in a microfluidic channel. The fluids flow as thin layers in the channel. One of the fluids is passed through a filter upon exiting the channel and is recycled through a secondary processor which changes the fluid's properties. The recycled fluid is reused for further exchange. The filter excludes blood cells from the recycled fluid and prevents or limits clogging of the filter. The secondary processor removes metabolic waste and water by diafiltration.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: September 4, 2012
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Edward F. Leonard, Alan C. West, Christian Paul Aucoin, Edgar E. Nanne
  • Publication number: 20120152841
    Abstract: A liquid membrane matrix is disclosed in the form of an aquaporin containing bulk liquid membrane matrix (BLM), wherein said liquid membrane matrix is formed from a solution of an amphiphilic copolymer detergent wherein transmembrane proteins have been functionally incorporated and wherein said matrix further contains a stabilising oil phase. The uses of the membrane matrix include water extraction from liquid aqueous media by forward osmosis, e.g. for desalination of salt water.
    Type: Application
    Filed: September 28, 2011
    Publication date: June 21, 2012
    Applicant: Aquaporin A/S
    Inventors: Thomas Vissing, Jesper Søndergaard Hansen
  • Publication number: 20120132589
    Abstract: A system and process for treating a hydrocarbon feed mixture containing aromatic compounds is provided to separate the at least one aromatic compound from the hydrocarbon feed stream is provided. A supported ionic liquid membrane, which is a microporous polymeric support containing ionic liquid in its pores, is used to selectively extract aromatics. The hydrocarbon feed mixture is directed to a retentate side of the supported ionic liquid membrane. A permeate stream is drawn from the permeate, side of the supported ionic liquid membrane, which is an aromatic-rich hydrocarbon stream. An aromatic-lean hydrocarbon stream, which is the retentate portion of the original hydrocarbon feed, remains on the retentate side of the supported ionic liquid membrane.
    Type: Application
    Filed: November 29, 2010
    Publication date: May 31, 2012
    Inventors: Esam Zaki Hamad, Ahmad Abdullah Bahamdan
  • Publication number: 20120103900
    Abstract: A system and method for the extraction of americium from radioactive waste solutions. The method includes the transfer of highly oxidized americium from an acidic aqueous feed solution through an immobilized liquid membrane to an organic receiving solvent, for example tributyl phosphate. The immobilized liquid membrane includes porous support and separating layers loaded with tributyl phosphate. The extracted solution is subsequently stripped of americium and recycled at the immobilized liquid membrane as neat tributyl phosphate for the continuous extraction of americium. The sequestered americium can be used as a nuclear fuel, a nuclear fuel component or a radiation source, and the remaining constituent elements in the aqueous feed solution can be stored in glassified waste forms substantially free of americium.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 3, 2012
    Applicant: UT-BATTELLE, LLC
    Inventors: Ramesh R. Bhave, Melanie M. DeBusk, Guillermo D. DelCul, Laetitia H. Delmau, Chaitanya K. Narula
  • Publication number: 20120085706
    Abstract: The present invention relates to a method and article for manipulating an amount of organic material entrained in an aqueous phase of a solvent extraction process. The method includes estimating an interfacial shear stress between an aqueous phase and an organic phase of a solvent extraction apparatus, estimating an amount of organic material entrained in the aqueous phase based on the estimated interfacial shear stress, and manipulating one or more solvent extraction process parameters to manipulate the amount of organic material entrained in the aqueous phase. The method and apparatus can be used to improve performance of and reduce operating costs associated with the solvent extraction apparatus.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Applicant: FREEPORT-MCMORAN CORPORATION
    Inventors: Charles L. Bryce, Jason M. Morgan, William R. Sircy, Rosemary D. Blosser
  • Publication number: 20120080377
    Abstract: A liquid membrane system is disclosed in the form of a biochannel containing bulk liquid membrane (BLM), biochannel containing emulsion liquid membrane (ELM), and biochannel containing supported (immobilised) liquid membrane (SLM), or a combination thereof, wherein said liquid membrane system is based on vesicles formed from amphiphilic compounds such as lipids forming a bilayer wherein biochannels have been incorporated and wherein said vesicles further contain a stabilising oil phase. The uses of the membrane system include water extraction from liquid aqueous media by forward osmosis, e.g. for desalination of salt water.
    Type: Application
    Filed: October 4, 2011
    Publication date: April 5, 2012
    Applicant: Aquaporin A/S
    Inventors: Peter Holme Jensen, Jesper Sondergaard Hansen, Thomas Vissing, Mark Edward Perry, Claus Helix Nielsen
  • Publication number: 20120055874
    Abstract: Method of contacting a first and a second immiscible liquids without mixing them, including: (a) the first liquid is placed in at least one container comprising a wall made of a solid material that is non reactive with the first and second liquids, said wall having one or more through-holes and the first liquid being non wetting vis à vis said solid material of the wall; (b) said first container is immersed in a volume of the second liquid so that the first liquid is in contact with the second liquid at the level of said through-holes; (c) the first liquid is left in contact with the second liquid for a time sufficient for mass exchange, transfer, to take place between the first and second liquids; and (d) said first container is withdrawn from the volume of the second liquid.
    Type: Application
    Filed: December 19, 2007
    Publication date: March 8, 2012
    Inventors: Jean-Pierre Feraud, Jean Duhamet, Florent Gandi, Olivier Conocar
  • Patent number: 8101274
    Abstract: Disclosed herein are glycosylated amphiphilic molecules composed of hydrophobic “tails” and hydrophilic “heads” that self align to form a membrane at the interface of a polar solvent and a non-polar liquid or a solid. The present invention is directed to a solid state membrane, typically a thin film, composed of a non-polar solid material having the hydrophobic “tail” of a glycosylated amphiphilic molecule embedded in or linked to its surface such that the hydrophilic “head” protrudes from the solid surface and presents useful properties to the surrounding environment.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: January 24, 2012
    Inventor: Richard H. Spedden
  • Patent number: 8097162
    Abstract: A device, system and method for exchanging components between first and second fluids by direct contact in a microfluidic channel. The fluids flow as thin layers in the channel. One of the fluids is passed through a filter upon exiting the channel and is recycled through a secondary processor which changes the fluid's properties. The recycled fluid is reused for further exchange. The filter excludes blood cells from the recycled fluid and prevents or limits clogging of the filter. The secondary processor removes metabolic waste and water by diafiltration.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: January 17, 2012
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Edward F. Leonard, Alan C. West, Christian Paul Aucoin, Edgar E. Nanne
  • Patent number: 8097153
    Abstract: A device, system and method for exchanging components between first and second fluids by direct contact in a microfluidic channel. The fluids flow as thin layers in the channel. One of the fluids is passed through a filter upon exiting the channel and is recycled through a secondary processor which changes the fluid's properties. The recycled fluid is reused for further exchange. The filter excludes blood cells from the recycled fluid and prevents or limits clogging of the filter. The secondary processor removes metabolic waste and water by diafiltration.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: January 17, 2012
    Assignee: The Trustees of Columbia in the City of New York
    Inventors: Edward F. Leonard, Alan C. West, Christian Paul Aucoin, Edgar E. Nanne
  • Patent number: 8092684
    Abstract: A device, system and method for exchanging components between first and second fluids by direct contact in a microfluidic channel. The fluids flow as thin layers in the channel. One of the fluids is passed through a filter upon exiting the channel and is recycled through a secondary processor which changes the fluid's properties. The recycled fluid is reused for further exchange. The filter excludes blood cells from the recycled fluid and prevents or limits clogging of the filter. The secondary processor removes metabolic waste and water by diafiltration.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: January 10, 2012
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Edward F. Leonard, Alan C. West, Christian Paul Aucoin, Edgar E. Nanne
  • Publication number: 20110226696
    Abstract: A process for separating an aqueous emulsion including an aqueous phase and an non-aqueous phase into separated aqueous and non-aqueous phases, to provide a recovered non-aqueous phase, and to provide a recovered aqueous phase containing an acceptable level of the non-aqueous phase. In the process, at least one body, and preferably two or more bodies, of polymeric material with a high surface area, typically a foam material or polymer chips, is used in a horizontal flow treatment system to break the emulsion and thus provide both the aqueous and non-aqueous phases as two separate flows. A wide range of polymers can be used in the system as the polymeric material including polyurethane, polypropylene, polystyrene, polyester, and polyethylene. If a very low level of non-aqueous phase in the effluent is required, for example to meet potable water standards, then a Kozlowski polyurethane, as described in U.S. Pat. No.
    Type: Application
    Filed: April 5, 2011
    Publication date: September 22, 2011
    Inventors: Amine Benachenou, Jean-Pierre Parent
  • Patent number: 8021318
    Abstract: The present invention is directed to devices, systems and methods for removing undesirable materials from a sample fluid by contact with a second fluid. The sample fluid flows as a thin layer adjacent to, or between, concurrently flowing layers of the second fluid, without an intervening membrane. In various embodiments, a secondary separator is used to restrict the removal of desirable substances and effect the removal of undesirable substances from blood. The invention is useful in a variety of situations where a sample fluid is to be purified via a diffusion mechanism against an extractor fluid. Moreover, the invention may be used for the removal of components from a sample fluid that vary in size. When blood is the sample fluid, for example, this may include the removal of ‘small’ molecules, ‘middle’ molecules, macromolecules, macromolecular aggregates, and cells, from the blood sample to the extractor fluid.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: September 20, 2011
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Edward F. Leonard, Alan C. West, Nina C. Shapley, Zhongliang Tang
  • Publication number: 20110186515
    Abstract: A process for the treatment of water/oil (W/O) emulsions is described which includes the addition of an ionic liquid, under heating, to a water/oil emulsion containing between 0.5% and 85% of water per volume as a dispersion phase, until the concentration of the ionic liquid in the emulsion remains within the range of 0.01 ?L/g to 100 ?L/g. The ionic liquid used is a salt of a general C+ A? formula in a liquid state at temperatures below 150° C., where A? is an anion and C+ is a cation, which has at least a hydrophobic alkyl chain connected to a cation group. The heating method includes conventional heating and heating via microwaves. In the heating via microwaves, the salts of the general C+ A? formula present synergic behavior in separation efficiency in relation to conventional heating.
    Type: Application
    Filed: December 28, 2010
    Publication date: August 4, 2011
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Regina Celia Lourenco GUIMARÂES, Bianca Machado da Silva FERREIRA, Maria de Fatima Pereira DOS SANTOS, Ricardo Andre GUARNIERI, Montserrat Fortuny HEREDIA, Cláudio DARIVA, Alexandre Ferreira SANTOS, Rita de Cássia Bomfim LEMOS, Lisiane dos Santos FREITAS
  • Publication number: 20110120948
    Abstract: A trap Including: an inlet configured to receive a fluid conveying nanostructures; ionic liquid configured to trap the nanostructures; and an outlet for the fluid.
    Type: Application
    Filed: November 20, 2009
    Publication date: May 26, 2011
    Inventors: Di Wei, Zoran Radivojevic, Markku Antti Kyosti ROUVALA, Teuvo Tapani Ryhänen
  • Patent number: 7914679
    Abstract: A method for extracting at least one chemical or biological compound from a liquid phase including at least one functionalized ionic liquid, via a liquid extracting fluid that is miscible with the ionic liquid, and a microfluidic system implementing the method. The extraction method includes moving, on one surface of a microfluidic system, at least one microdrop of the liquid phase into an extraction solution that includes the extracting fluid and that is localized on the surface to obtain in output of the solution, under effect of an electric field, an extract moving away from the surface that is rich in extracting fluid and enriched in the at least one compound, and a raffinate moving on the surface that is rich in ionic liquid and deleted in the at least one compound.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: March 29, 2011
    Assignee: Commissariat a l'energie Atomique
    Inventors: Guillaume Delapierre, Nicolas Sarrut, Gilles Marchand
  • Patent number: 7850633
    Abstract: The present invention is directed to devices, systems and methods for removing undesirable materials from a sample fluid by contact with a second fluid. The sample fluid flows as a thin layer adjacent to, or between, concurrently flowing layers of the second fluid, without an intervening membrane. In various embodiments, a secondary separator is used to restrict the removal of desirable substances and effect the removal of undesirable substances from blood. The invention is useful in a variety of situations where a sample fluid is to be purified via a diffusion mechanism against an extractor fluid. Moreover, the invention may be used for the removal of components from a sample fluid that vary in size. When blood is the sample fluid, for example, this may include the removal of ‘small’ molecules, ‘middle’ molecules, macromolecules, macromolecular aggregates, and cells, from the blood sample to the extractor fluid.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: December 14, 2010
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Edward F. Leonard, Alan C. West, Nina C. Shapley, Zhongliang Tang
  • Publication number: 20100288640
    Abstract: A system having a reactor for continuous processing of fluid is provided herein. The reactor, in general, includes an outer vessel to accommodate fluids to be processed or used in connection therewith, an inner vessel situated within the outer vessel to serve as an energy exchange surface, and an annular space defined between the outer and inner vessels and along which processing of the fluids can be implemented. The continuous thin film reactor can be used to perform, for example, distillation and evaporation, fluid-fluid or solid-fluid-fluid reactions, organic reactions, cooling, and desalination.
    Type: Application
    Filed: May 18, 2009
    Publication date: November 18, 2010
    Inventors: Roshan J. J. Jachuck, Supriya Jachuck
  • Publication number: 20100276366
    Abstract: A method and a device for differentiation of substances in a body fluid, such as blood, plasma or used peritoneal dialysis fluid, for example for hemodialysis. The device has a compartment having several inlets for entering a body fluid, a transition fluid and a diffusion fluid for flowing parallel with each other in laminar flow layers with substantially equal flow velocities. The transition fluid layer is interposed between the body fluid layer and the diffusion fluid layer. The compartment further has a first outlet for removing the body fluid and the transition fluid and a second outlet for removing the diffusion fluid. Pumps are arranged for controlling the flow velocities so that a marker substance, such as albumin, will not diffuse from the body fluid layer across the transition layer, during the passage of the body fluid from the inlet to the outlet of the compartment.
    Type: Application
    Filed: November 19, 2008
    Publication date: November 4, 2010
    Applicant: HALLANDIA VENTURES AB
    Inventors: Carl Tyren, Jarl Ahlmen
  • Patent number: 7727399
    Abstract: A device, system and method for exchanging components between first and second fluids by direct contact in a microfluidic channel. The fluids flow as thin layers in the channel. One of the fluids is passed through a filter upon exiting the channel and is recycled through a secondary processor which changes the fluid's properties. The recycled fluid is reused for further exchange. The filter excludes blood cells from the recycled fluid and prevents or limits clogging of the filter. The secondary processor removes metabolic waste and water by diafiltration.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: June 1, 2010
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Edward F. Leonard, Alan C. West, Christian P. Aucoin, Edgar E. Nanne
  • Publication number: 20100108605
    Abstract: The present invention relates to a polymeric aromatic selective membrane comprising an cross linked polyether imide membrane that comprise the reaction of a polyether amine with an dianhydride, and that may be utilized in a process for selectively separating aromatics from a hydrocarbon feedstream comprised of aromatic and aliphatic hydrocarbons and at least one alcohol, typically ethanol.
    Type: Application
    Filed: October 27, 2009
    Publication date: May 6, 2010
    Inventors: Abhimanyu O. Patil, Timothy D. Shaffer, Satish Bodige, David C. Dalrymple, Benjamin A. McCool, Randall D. Partridge