Utilizing Organic Precipitant Patents (Class 210/729)
  • Patent number: 10633332
    Abstract: Methods for removing oxyanions from water according to the following steps: (i) dissolving an oxyanion precipitating compound into the aqueous source to result in precipitation of an oxyanion salt of the oxyanion precipitating compound; and (ii) removing the oxyanion salt from the water containing the oxyanion to result in water substantially reduced in concentration of the oxyanion; wherein the oxyanion precipitating compound has the following composition: wherein A is a ring-containing moiety and Xm? is an anionic species with a magnitude of charge m. The invention employs bis-iminoguanidinium compounds according to Formula (1a) as well as neutral precursor compounds according to Formula (1), which can be used for removing undesirable species from aqueous solutions or air, such as removal of sulfate from water and carbon dioxide from air.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: April 28, 2020
    Assignee: UT-BATTELLE, LLC
    Inventors: Radu Custelcean, Charles A. Seipp, Neil J. Williams
  • Patent number: 10583387
    Abstract: A method for removing carbon dioxide from a gaseous source, the method comprising: (i) contacting said gaseous source with an aqueous solution of a carbon dioxide sorbent that reacts with carbon dioxide to form an aqueous-soluble carbonate or bicarbonate salt of said carbon dioxide sorbent; (ii) contacting the aqueous solution from step (i) with a bis-iminoguanidine carbon dioxide complexing compound, which is different from the carbon dioxide sorbent, to result in precipitation of a carbonate or bicarbonate salt of said carbon dioxide complexing compound and regeneration of the carbon dioxide sorbent; and (iii) removing the precipitated carbonate or bicarbonate salt from the aqueous solution in step (ii) to result in a solid form of said carbonate or bicarbonate salt of the carbon dioxide complexing compound. The method may further include a step (iv) of regenerating the carbon dioxide complexing compound by subjecting the precipitated salt to sufficient heat and/or vacuum.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: March 10, 2020
    Assignee: UT-Battelle, LLC
    Inventors: Radu Custelcean, Neil Justin Williams, Charles Aaron Seipp
  • Patent number: 10435989
    Abstract: Multi-stage treatment methods for the treatment or removal of iron sulfide scales in subterranean operations and operations involving the production and/or transportation of oil and gas. In one embodiment, the methods include identifying one or more types of iron sulfide scale present in a portion of a subterranean formation; introducing a first treatment composition comprising an acid into at least a portion of the subterranean formation to partially dissolve the iron sulfide scale therein; and introducing a second treatment composition into the portion of the subterranean formation after the first treatment composition, the second treatment composition comprising an iron sulfide treating additive selected based at least in part on a type of iron sulfide scale identified in the subterranean formation.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: October 8, 2019
    Assignee: Multi-Chem Group, LLC
    Inventors: Yang Peng, Zhiwei Yue, Chunfang Fan
  • Patent number: 10259734
    Abstract: This invention presents an innovative de-scaling step to effectively eliminate scale obstacles in desalination plants to: (1) allow better performance ratio by either reducing steam load or increasing distillate production, and thus more efficient and cost effective plants; (2) reduce the enormous volumes of the total required seawater (recycle brine and returned cooling seawater) and reject brine; (3) eliminate the addition of scale inhibitors and frequent shut-downs to remove scale buildup; and (4) minimize reduction in heat transfer coefficients. This invention, as a result of the effective de-scaling step, also presents a new effective design for Multi-Stage Flash (MSF) desalination plants, which is based on what its coined a Brine-Forward (BF) concept. The BF-MSF concept is multi-boiling without supplying additional heat after the train's brine heater, and multi-concentration without supplying additional seawater after the first train of the plant.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: April 16, 2019
    Inventor: Mansour S. Bader
  • Patent number: 10259735
    Abstract: Scale forming ions in seawater and the like of saline streams cause engineering difficulties that severely restrict the potential productivity of any desalination method. This invention provides innovative de-scaling methods to effectively eliminate scale problems in desalination plants. As a result of such effective de-scaling methods, this invention also provides a new effective design for Multi-Stage Flash (MSF) desalination plants, which is based on what its coined a Brine-Forward (BF) concept. The BF-MSF concept is multi-boiling without supplying additional heat after the brine heater of each train, and multi-concentration without supplying additional seawater after the first train of the plant.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: April 16, 2019
    Inventor: Mansour S. Bader
  • Patent number: 10161081
    Abstract: Use for sizing textile materials with an aqueous sizing composition including at least one co-polymer obtained by the polymerization of at least one non-ionic monomer and/or one anionic monomer, and at least one monomer of formula (I): in which: R1 is an atom of hydrogen or a methyl radical; x=0 or 1; Z is a divalent grouping —C(?O)—O—, —C(?O)—NH—, or —CH2—; n is an integer between 1 and 250; R2 is a hydrogen atom or a carbonated radical—saturated or unsaturated, possibly aromatic, linear, ramified or cyclic—including from 1 to 30 carbon atoms and from 0 to 4 hetero-atoms chosen from the group including O, N and S.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: December 25, 2018
    Assignee: S.P.C.M SA
    Inventors: Frédéric Blondel, David Sanchez
  • Patent number: 10040710
    Abstract: A method uses anionic and cationic polymers added in, any order or simultaneously, to aqueous media for the removal of substances. The sequential addition of the two biopolymers, anionic xanthan, followed by cationic chitosan, causes the rapid formation of very large and cohesive fibrillar aggregates that may exhibit high solids to liquid ratios and that quickly settle out from the aqueous media. The aqueous media can be easily separated from the large fibrillar aggregates by settling under gravity or by filtration through a porous containment device, such as a synthetic or non-synthetic woven or non-woven fabric including a geotextile fabric or a solid containment device containing a solid mesh screen.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: August 7, 2018
    Assignee: Dober Chemical Corporation
    Inventors: Everett J. Nichols, James R. Scott, Jeffrey F. Williams, Yongjun Chen
  • Patent number: 9896366
    Abstract: The invention provides methods and compositions for improving dewatering of mineral slurry. The method comprises adding an R-Succinic Compound (such as octadecenyl succinic acid, hexadecenyl succinic acid, and/or dodecenyl succinic acid) to the slurry. The R-Succinic Compound removes water that would otherwise be trapped within the filtered slurry cake.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: February 20, 2018
    Assignee: Ecolab USA Inc.
    Inventor: Carl N. Urbani
  • Patent number: 9382283
    Abstract: An oxygen assisted Organosolv process for a more efficient delignification and producing bio-products by decomposing lignocellulosic materials comprises providing a lignin solvent with water, an acid, an oxidant and one or more lignin dissolving chemicals. The process also includes placing biomass in contact with oxidant, acid, water, the lignin solvent in any order or combined to form a recyclable solvent, and recycling at least a portion of the recyclable solvent by circulating the recyclable solvent back into contact with the biomass. The circulating of the recyclable solvent occurs for a period of time, during which, acid and oxidant may be added if necessary as they may be consumed by the process, after which, the process then includes separating material such as chemicals and lignin from the recyclable solvent.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: July 5, 2016
    Assignee: American Science and Technology Corporation
    Inventors: Ali Manesh, John H. Guenther, Edwin G. Zoborowski, Walter Braenner, Mohammad Ali Manesh, Lee J. Hawk
  • Publication number: 20150096343
    Abstract: The present invention is directed to methods and systems for pre-treating sewage sludge in a sewage treatment works (STW) to facilitate anaerobic digestion. These methods include (a) passing sewage sludge through one or more pre-treatment devices, wherein each pre-treatment device comprises (i) a passage of substantially constant diameter having an inlet in fluid communication with the STW and an outlet; and (ii) a transport fluid nozzle communicating with the passage and adapted to inject high velocity transport fluid into the passage; (b) passing the sewage sludge treated in step (a) to an anaerobic digester; and (c) collecting methane produced in step (b). Other methods are also provided for pre-treating a bio-degradable waste flow.
    Type: Application
    Filed: July 13, 2012
    Publication date: April 9, 2015
    Inventors: Bart Pieper, Michelle Gina Elizabeth Gothard
  • Patent number: 8968572
    Abstract: In a device and a process for purifying water which is contaminated with sulphate ions and heavy metal ions, the water is collected in a water reservoir and a substance having basic activity in water is fed to the water reservoir in such a manner that a precipitant having heavy metal ions is precipitated from the water, wherein at least a subquantity of water is taken off from the water reservoir and is separated into pure water which is substantially freed from sulphate ions and heavy metal ions and dirty water which is enriched with sulphate ions and heavy metal ions. The dirty water is at least in part recirculated to the water reservoir, as a result of which a concentration of sulphate ions in the water reservoir is achieved such that a precipitant having sulphate ions is precipitated from the water.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: March 3, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Michael Riebensahm
  • Patent number: 8889008
    Abstract: A method of conditioning a membrane biological reactor mixed liquor containing one or more nonionic polysaccharides and/or one or more organic molecules is disclosed.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: November 18, 2014
    Assignee: Nalco Company
    Inventors: Deepak A. Musale, John H. Collins
  • Publication number: 20140263071
    Abstract: A method for collecting metals from a solution, in which method solid insoluble or sparingly soluble bisphoshonate of formula I is mixed with the solution, whereby metals possibly present in the solution react with the bisphosphonate, and the bisphosphonate together with the metals reacted with it is separated from the solution. The method can be used for collecting metals e.g. from waste water or from household water.
    Type: Application
    Filed: March 30, 2012
    Publication date: September 18, 2014
    Applicant: CHEMEC OY AB
    Inventors: Petri Turhanen, Sirpa Peraniemi, Jouko Vepsalainen
  • Patent number: 8801937
    Abstract: A process for treatment of water containing an azole-type anticorrosive for copper, includes adding ferrous ions to the water containing the azole-type anticorrosive for copper and having a pH of 4-8, thereby precipitating an insoluble iron-azole complex, and separating the insoluble iron-azole complex. An amount of the ferrous ions added is 0.5 to 5.0 times, by molar ratio, an amount of the azole-type anticorrosive for copper in the water containing the azole-type anticorrosive for copper. After the insoluble iron-azole complex is separated, remaining total organic carbon (TOC) components are subjected to an ozone treatment.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: August 12, 2014
    Assignee: Kurita Water Industries Ltd.
    Inventors: Tomoharu Yasuike, Atsushi Nemoto
  • Publication number: 20140197112
    Abstract: A potabilisation method of a water to be treated, containing a coagulation-flocculation step wherein the step includes: a) a step of adding a liquid composition including a solubilized cationic starch to the aqueous solution to be treated; b) a step of adding one or several metal salts selected from ferric salts and aluminum salts to the aqueous solution to be treated; steps a) and b) being carried out in any order and being carried out either separately, simultaneously or using a liquid composition including both the solubilized cationic starch and the metal salt, the steps a) and b) being followed: c) by a step of stirring the supplemented aqueous solution; d) by a step of separating the coagulated solids by sedimentation or floatation; e) by a step of recovering a purified water; the liquid composition including cationic starch having a viscosity, measured according to test A, higher than 1000 mPa·s.
    Type: Application
    Filed: July 19, 2012
    Publication date: July 17, 2014
    Applicant: ROQUETTE FRERES
    Inventor: Laura Crowther-Alwyn
  • Publication number: 20140197110
    Abstract: The invention relates to a method for recycling of phosphoric acid solution from a decontamination bath, which solution is contaminated with radioactive components, wherein the used phosphoric acid solution is diluted with aqueous oxalic acid solution, in order to separate off iron oxalate in this connection, and the phosphoric acid solution is used for decontamination of further system parts, wherein the iron ion content in the phosphoric acid in the decontamination bath is continuously measured, and phosphoric acid is continuously withdrawn from the decontamination bath and concentrated and purified phosphoric acid is replaced, so that a specific concentration of dissolved iron in the contamination bath is not exceeded, and to a system for implementation of the method.
    Type: Application
    Filed: June 23, 2011
    Publication date: July 17, 2014
    Applicant: BABCOCK NOELL GMBH
    Inventor: Gerd Edler
  • Publication number: 20140158616
    Abstract: A system, method, and apparatus for precipitating a water soluble salt or water soluble salts from water, including adding a water-miscible solvent to a water solution including an inorganic salt. The system, method and apparatus also allow for the separation of the precipitated salt, and for separation of the solvent from the water. In doing so, reclamation of water is provided.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 12, 2014
    Applicant: Advanced Water Recovery, LLC
    Inventors: Rakesh Govind, Robert Foster
  • Publication number: 20140054231
    Abstract: A process for dewatering oil sands tailings is provided, comprising providing a tailings feed having a solids content in the range of about 10 wt % to about 45 wt %; adding a flocculant to the tailings feed and mixing the tailings feed and flocculant to form flocs; and centrifuging the flocculated tailings feed to produce a centrate having a solids content of less than about 3 wt % and a cake having a solids content of at least about 50 wt %.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 27, 2014
    Applicant: SYNCRUDE CANADA LTD. in trust for the owners of Syncrude Project
    Inventors: JONATHAN SPENCE, BARRY BARA, JIM LORENTZ, RANDY MIKULA, JIWON LEE, RICHARD DANIEL LAHAIE
  • Publication number: 20130319950
    Abstract: The present invention relates to urea-functionalized crystalline capsules self-assembled by sodium or potassium cation coordination and by hydrogen-bonding water bridges to selectively encapsulate tetrahedral divalent oxoanions from highly competitive aqueous alkaline solutions and methods using this system for selective anion separations from industrial solutions. The method involves competitive crystallizations using a tripodal tris(urea) functionalized ligand and, in particular, provides a viable approach to sulfate separation from nuclear wastes.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 5, 2013
    Applicant: UT-BATTELLE, LLC
    Inventors: Radu Custelcean, Bruce A. Moyer, Arbin Rajbanshi
  • Patent number: 8596346
    Abstract: A method of flocculating coal fines from produced water that includes the steps of: (A) mixing at least: (i) produced water, wherein the produced water comprises suspended coal fines; (ii) one or more oil-soluble phosphate esters; and (iii) water-immiscible solvent; wherein the mixing is in proportions to obtain an oil-in-water emulsion; (B) allowing or mechanically causing the oil-in-water emulsion to substantially break into: (i) a first fluid having a continuous phase comprising at least some of the water from the produced water; and (ii) a second fluid having a continuous phase comprising at least some of the water-immiscible solvent; and (C) mechanically separating the first fluid and the second fluid. Optionally, the step of mixing further includes mixing with a crosslinker for the one or more phosphate esters to form a gel for suspending the separated coal fines.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: December 3, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Matthew Gersbach, Glen Clifford Fyten
  • Patent number: 8585903
    Abstract: The invention provides an efficient method to purify an aqueous solution, typically mine drainage water, especially of anions and cations present in the aqueous solution as dissolved solids, the anions and cations are removed by treatment with a positively charged extractant having at least eight carbon atoms, whereby an unstable emulsion is formed; the unstable emulsion is allowed to break into an extract phase loaded with the anions and cations, and a water phase depleted in anions and cations; a floc inherently forms in the loaded extractant phase and then the loaded extractant phase and floc are separated from the purified water and treated to remove the anions and cations as concentrated useful products; the treated aqueous phase now reduced in anion and/or cation content is also separated from the emulsion as a purified aqueous solution. The extractant phase is preferably recycled. A continuous water purification process is provided.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: November 19, 2013
    Assignee: Winner Water Services, Inc.
    Inventors: Bruce F. Monzyk, F. Michael Von Fahnestock, James Kevin Rose, H. Nick Conkle, Ming Wang, Satya P. Chauhan, Ruey K. Bruce, Tenisha Highsmith
  • Patent number: 8580917
    Abstract: The invention relates to block polymers, for example, arborescent copolymer compounds, and to methods of making and purifying such compounds. In one embodiment, the invention relates to arborescent polymer compounds that contain one or more styrene polymeric blocks in combination with one or more isobutylene polymeric blocks. In another embodiment, the invention relates to methods for purifying arborescent polymer compounds that contain at least one styrene polymeric block in combination with at least one isobutylene polymeric block.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: November 12, 2013
    Assignee: The University of Akron
    Inventor: Judit E Puskas
  • Patent number: 8506821
    Abstract: A system for processing drilling mud, the system including a primary separation tank having an inlet for receiving drilling waste and an outlet in fluid communication with a feed line, and an injection pump in fluid communication with a polymer tank and the feed line. The system also includes a clarifying tank in fluid communication with the feed line and a first collection tank, wherein effluent from the clarifying tank is discharged into the first collection tank, and a centrifuge in fluid communication with the clarifying tank and a second collection tank, wherein effluent from the centrifuge is discharged into the second collection tank.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: August 13, 2013
    Assignee: M-I L.L.C.
    Inventors: John O. Pruett, Gary E. Fout
  • Publication number: 20130193077
    Abstract: We provide a process for the neutralization and precipitation of high pH brines that eliminates the formation of “gelatinous silica” during neutralization. The high pH brine is neutralized in a two-step neutralization process. In the first step the salt concentration of a high pH brine is built up to a minimum level of 8-12%, and then its pH is reduced to 9-9.5. The partially neutralized brine is allowed a reaction period with mild agitation. Subsequently the pH is further reduced, typically to 8-9. A coagulant and/or a polymer can also be used to enhance the settling or filtration rate of the neutralized stream.
    Type: Application
    Filed: July 30, 2012
    Publication date: August 1, 2013
    Inventors: Ravi Chidambaran, Pavan Raina, Narendra Singh Bisht
  • Publication number: 20130153508
    Abstract: Disclosed is a process which comprises mixing an alkylated aromatic acid with a mixture comprising a first liquid and a second liquid, thereby causing formation of an organogel comprising the alkylated aromatic acid and the first liquid.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 20, 2013
    Applicants: NATIONAL RESEARCH COUNCIL OF CANADA, XEROX CORPORATION
    Inventors: Darren A. Makeiff, Rina Carlini
  • Patent number: 8425781
    Abstract: Use of a Maillard reaction product as an adjuvant in a variety of applications including solid-liquid separations, corrosion inhibition, emulsification, dust suppression, slow release fertilization, viscosity modification and others and especially as a depressant or collector in separation processes, including the selective separation of solids and/or ionic species from aqueous media, such as in the process of froth flotation.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: April 23, 2013
    Assignee: Georgia-Pacific Chemicals LLC
    Inventors: John B. Hines, Brian L. Swift, Pablo G. Dopico
  • Publication number: 20130075340
    Abstract: A process for flocculating and dewatering oil sands fine tailings is provided, comprising: adding the oil sands fine tailings as an aqueous slurry to a stirred tank reactor; adding an effective amount of a polymeric flocculant to the stirred tank reactor containing the oil sands fine tailings and operating the reactor at an impeller tip speed for a period of time that is sufficient to form a gel-like structure; subjecting the gel-like structure to shear conditions in the stirred tank reactor for a period of time sufficient to break down the gel-like structure to form flocs and release water; and removing the flocculated oil sands fine tailings from the stirred tank reactor when the maximum yield stress of the flocculated oil sands fine tailings begins to decline but before the capillary suction time of the flocculated oil sands fine tailings begins to substantially increase from its lowest point.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 28, 2013
    Applicant: SYNCRUDE CANADA LTD. in trust for the owners of the Syncrude Project
    Inventors: BARRY BARA, SIMON YUAN, RON SIMAN, CLARA GOMEZ
  • Publication number: 20130048571
    Abstract: A flocculant composition that includes a blend of a first water-in-oil emulsion having a silicon-containing polymer in its aqueous phase and a second water-in-oil emulsion having an anionic polymer in its aqueous phase. The silicon-containing polymer and the anionic polymer are present in the composition at a weight ratio between 100:1 and 1:100.
    Type: Application
    Filed: February 7, 2011
    Publication date: February 28, 2013
    Applicant: CYTEC TECHNOLOGY CORP.
    Inventors: Haunn-Lin Tony Chen, Douglas A. Cywar, Matthew J. Davis, Morris Lewellyn
  • Patent number: 8383764
    Abstract: The invention relates to block polymers, for example, arborescent copolymer compounds, and to methods of making and purifying such compounds. In one embodiment, the invention relates to arborescent polymer compounds that contain one or more styrene polymeric blocks in combination with one or more isobutylene polymeric blocks. In another embodiment, the invention relates to methods for purifying arborescent polymer compounds that contain at least one styrene polymeric block in combination with at least one isobutylene polymeric block.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: February 26, 2013
    Assignee: The University of Akron
    Inventor: Judit E. Puskas
  • Publication number: 20120325743
    Abstract: A treatment system is provided and comprises a precipitation unit and a recovery unit. The precipitation unit is configured to treat a solution using one or more miscible organic solvents to produce a mixture of precipitate solids and a liquid. The recovery unit is in fluid communication with the precipitation unit and configured to facilitate separating the liquid at least into an organic phase liquid and an aqueous phase liquid comprising a portion of the one or more miscible organic solvents. The treatment system further comprises a purification unit comprising one or more membrane devices in fluid communication with the recovery unit and configured to separate at least a portion of the one or more miscible organic solvents in the aqueous phase liquid from the aqueous phase liquid. A treatment system and a treatment process are also presented.
    Type: Application
    Filed: July 2, 2010
    Publication date: December 27, 2012
    Inventors: Jiyang Xia, Rihua Xiong, Wei Cai, Wenqing Peng, Zijun Xia, Yiwen Sun
  • Patent number: 8313654
    Abstract: Methods for aggregating suspended solid particles in an aqueous medium involving mixing the aqueous medium with an effective amount of a flocculant to aggregate the solid particles to form aggregated solid particles, and optionally separating the aggregated solid particles from the aqueous medium. The flocculant is obtained from animal blood. The pH of the aqueous medium may be adjusted to a pH of about 4.5 to about 5.7 by the addition of at least one acid or acidic buffer. The temperature of the aqueous medium may be adjusted to a temperature range of about 10° to about 50° C.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: November 20, 2012
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventors: George Piazza, Rafael Garcia
  • Publication number: 20120261351
    Abstract: A system and method for removing water from sludge including mixing a blending material into the sludge and compressing the mixture. Additional pre and post compression steps are disclosed. Examples of specific blending materials and methods for their use are disclosed.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 18, 2012
    Inventor: Dominic O Rathallaigh
  • Patent number: 8282835
    Abstract: The invention provides a method of efficiently removing selenium from water. The method involves: adding an oxidant to the liquid, adjusting the liquid's pH to below 7.5, adding ferric salt in an amount such that less than a quarter of selenium in the liquid precipitates and adding a poly dithiocarbamate material to the liquid in an amount such that the amount of poly dithiocarbamate material (in ppm) is greater than the amount of ferric salt (in ppm). This method removes far more selenium than previous methods, and does it using a smaller amount of expensive chemicals. Moreover this method makes it far more likely to achieve cost effective compliance with the ever-increasing environmental standards for selenium in water.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: October 9, 2012
    Assignee: Nalco Company
    Inventors: Daniel E. Schwarz, Jitendra T. Shah
  • Publication number: 20120241386
    Abstract: The present invention relates to processes, methods, apparatuses, and systems for multi-function water treatment to condition feed water from various sources. The multi-function treatment includes seven stages, where the chemical content of the entered feed water is conditioned, then broken, then oxidized, then de-foamed, then clarified, then de-scaled, and then filtered via each stage.
    Type: Application
    Filed: March 22, 2012
    Publication date: September 27, 2012
    Inventor: Kaiss ALAHMADY
  • Patent number: 8241503
    Abstract: Disclosed is an economical process for the purification of water containing soluble and sparingly soluble inorganic compounds using single-stage or two-stage membrane processes that integrate membrane water purification with chemical precipitation softening and residual hardness and silica removal from the membrane concentrates using ion exchange resins and silica sequestering media, respectively.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: August 14, 2012
    Inventor: Riad Al-Samadi
  • Patent number: 8197696
    Abstract: Methods are disclosed for the precipitation of magnesium hydroxide in a standalone basis or in conjunction with the precipitation of calcium in different forms from saline streams. Methods are also disclosed for flue gas scrubbing in conjunction with the precipitation methods or in a standalone basis. Among the benefits of the disclosed methods is that their resulted spent saline stream and/or gas can be used, for instance, to feed seawater desalination plants and/or to enhance hydrocarbons recovery.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: June 12, 2012
    Inventor: Mansour S. Bader
  • Publication number: 20120138543
    Abstract: A charged particle polymer hybrid (CPPH) flocculant is taught, comprising sub-micron size charged particles and a polymer which has been polymerized in the presence of the charged particles wherein the intrinsic viscosity of the hybrid polymer flocculant is less than 930 ml/g. A method is provided for producing freely draining flocculated sediment from a suspension comprising finely divided solids in water. The method comprises dispersing, at increasing concentrations, a charged particle polymer hybrid (CPPH) flocculant into the suspension to determine a starting plateau concentration of CPPH flocculant above which concentration no further increase in the solids loading of the produced floccules is observed. Then, the concentration of dispersed CPPH flocculant in the suspension is maintained at or above the starting plateau concentration. A method is further provided for separating fine solids and water from a suspension comprising finely divided solids in water.
    Type: Application
    Filed: June 2, 2011
    Publication date: June 7, 2012
    Applicant: ALBERTA INNOVATES - TECHNOLOGY FUTURES
    Inventors: Haihong LI, Zhiang ZHOU, Ross Sam CHOW, Pablo CONTRERAS
  • Patent number: 8137567
    Abstract: A method for fluid remediation and removing particulates from an aqueous stream is described herein. The method can use a separation component and a clarifier component. A slurry can flow to a scalping shaker which can separate the slurry, forming a first effluent. The first effluent can flow from the scalping shaker to a first section and can be agitated. The first effluent can be pumped to a mud cleaner and cleaned, forming a second effluent. The second effluent can flow into a second section and can be agitated. The second effluent can be pumped to a desilter and can be desilted, forming a third effluent. The third effluent can flow to a third section. The third effluent can be pumped to a second tank of the clarifier component. The third effluent can be decelerated within the second tank, forming a clean effluent.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: March 20, 2012
    Assignee: Tri-Flo International, Inc.
    Inventor: Edward Beverly Moe
  • Patent number: 8110163
    Abstract: A method for the reduction of the emission of mercury into the environment from the burning of fossil fuels with the use of polydithiocarbamic compounds. The polydithiocarbamic compounds are used for the capture of mercury from the resulting flue gases using a flue gas desulfrization systems or scrubbers. The method uses polydithiocarbamic compounds in conjunction with a scrubber to capture mercury and reduce its emission and/or re-emission with stack gases. The method is a unique process of reducing the toxic levels of mercury, which allows for the use of coal as a clean and environmentally friendlier fuel source.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: February 7, 2012
    Assignee: Nalco Company
    Inventors: Bruce A Keiser, Jitendra Shah, Anthony G. Sommese, Lars E. Capener, Peter TenEyck, Ralf Wysk
  • Patent number: 8066885
    Abstract: A process for the beneficiation of carbonate mineral substrates by magnetic separation is defined herein wherein a phosphorus or nitrogen containing organic compound or reagent and a plurality of magnetic particles are intermixed with a carbonate containing mineral substrate, a magnetic field is applied to the mixture and a value mineral is thereby separated from a non-value mineral.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: November 29, 2011
    Assignee: Cytec Technology Corp.
    Inventors: Santhanjheri A. Ravishankar, Josanlet C. Villegas, Bing Wang
  • Patent number: 8034246
    Abstract: A method for removing ionic, organic and elemental mercury from aqueous streams such as wastewater streams from hydrocarbon processing. The method comprises four primary removal steps. First, a mercury precipitant is added to the stream to convert dissolved ionic species of mercury water-insoluble form. The majority of these precipitated solids, as well as other forms of particulate mercury, are subsequently removed by means of gas flotation. Following the flotation step, additional particulate and precipitated ionic mercury removal is accomplished with media filtration and finally, activated carbon acts to remove the remaining dissolved ionic mercury species as well as elemental and organic forms of mercury.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: October 11, 2011
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Meredith B. Gustafsson, Bal K. Kaul, Brian S. Fox, David A. Masciola, Bowornsak Wanichkul
  • Patent number: 7981295
    Abstract: Disclosed is an economical process for the purification of water containing soluble and sparingly soluble inorganic compounds using single-stage or two-stage membrane processes that integrate membrane water purification with chemical precipitation softening and residual hardness and silica removal from the membrane concentrates using ion exchange resins and silica sequestering media, respectively. The purified water recovery is not adversely affected by design and/or operational deficiencies in the chemical precipitation softening system that may result in higher residual hardness and silica in the supernatant from the clarifier.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: July 19, 2011
    Inventor: Riad A. Al-Samadi
  • Patent number: 7820058
    Abstract: A new method of improving the process of dewatering fine particulate materials is disclosed. In this method, an aqueous slurry of fine particles is treated with appropriate hydrophobizing reagents so that the particulate material becomes moderately hydrophobic with its water contact angle considerably below 90°. A low hydrophile-lipophile balance (HLB) number surfactant is then added to the slurry, so that the surfactant molecules adsorb on the moderately hydrophobic surface primarily by hydrophobic attraction and, thereby, increase its contact angle close to or above 90°. By virtue of the greatly enhanced hydrophobicity, the water molecules adhering to the surface are destabilized and removed more readily by a mechanical dewatering process. Any nonionic surfactant with its HLB number below about 15 may be used for the hydrophobicity enhancement. The surfactants may be used in conjunction with appropriate solvents such as light hydrocarbon oils and short-chain alcohols.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: October 26, 2010
    Assignee: Mineral and Coal Technologies, Inc.
    Inventor: Roe Hoan Yoon
  • Patent number: 7799230
    Abstract: Method for treatment of oil on a solid or liquid surface to facilitate subsequent removal of the oil from the surface. A fat-soluble metal containing substance comprising an organic anion and a metallic cation is added to the oil. The metal containing substance may be prepared by allowing a metal salt to react with an acidic organic compound in a process in which a suitable oxidation agent ensures that all the metal in the end product is present at its highest stable oxidation state while at least one volatile compound is formed during the preparation. A polymeric material with a high specific surface area may optionally be added or a prepolymer for allowing subsequent formation of such a polymeric material.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: September 21, 2010
    Assignee: Nor-X Industry AS
    Inventors: Jest Beylich, Ernil Arne Kleppe, Ferdinand Männle, Roger Hauge, Kaare Roger R{hacek over (o)}dseth
  • Patent number: 7771681
    Abstract: The present invention relates ways to increase the output of a high quality product from the aluminum hydroxide recovery processes such as the Bayer process. The invention is a method of increasing the size of precipitated aluminum hydroxide while not reducing the total production amounts. The invention relates to the use of a crystal growth modifier compositions added to the precipitation liquor to increase the particle size distribution of the precipitated alumina trihydrate.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: August 10, 2010
    Assignee: Nalco Company
    Inventors: Dmitri L. Kouznetsov, Jianjun Liu, David H. Slinkman
  • Publication number: 20100111818
    Abstract: The present disclosure is drawn to a method for removing colloidal titanium dioxide and titanium oxychloride from by-product hydrochloric acid, typically without the use of metallic hydroxides and/or other neutralizing agents. Often, the decontaminated hydrochloric acid product is commercial grade and has concentrations greater than 85 wt % of the concentration of untreated by-product hydrochloric acid. The method includes adding phosphate ion source and quaternary amine or other precipitating agent to the by-product hydrochloric acid to cause the titanium dioxide and the titanium oxychloride to form a precipitate. In one embodiment, the method further includes heating at least one of the phosphate ion source, the quaternary amine or alternative precipitating agent, the by-product hydrochloric acid, or combination thereof. The precipitate can then be separated from the acid, thus producing a decontaminated hydrochloric acid product with reduced levels of titanium and other contaminants.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 6, 2010
    Inventor: Frederick J. Haydock
  • Patent number: 7678281
    Abstract: A method of reclaiming a well completion brine solution containing metal impurities by introducing to the brine solution an organic chelant of the formula: and may be either a neutral compound, a corresponding salt, or a corresponding quaternary salt, wherein: D is F-A (Y3)u(Y4)v; R is independently selected from Cp or CpC(O); Cp is a C1-C36, preferably a C8-C36, hydrocarbyl group, optionally substituted with one or more substituents selected the group consisting of halogen, hydroxyl, sulfate, CH2CO2Z or —(CH2)nPO(OZ)2 groups; each A is independently selected from —N and —P; Y1 is independently selected from J, —[(F)-A(J)]w Y6 and R; J, R1, Y2, Y3, Y4, Y5 and Y6 are independently selected from the group consisting of —H, R, —(F)nCO2Z and —(CH2)nPO(OZ)2; each F is independently selected from a C1-C12 hydrocarbyl group, optionally substituted with one or more substituents selected from the group consisting of halogen, hydroxyl, sulfate, CH2CO2Z or —(CH2)nPO(OZ)2 groups; Z is —H, a balanced organic counte
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: March 16, 2010
    Assignee: BJ Services Company
    Inventors: Paul H. Javora, Qi Qu
  • Patent number: 7674384
    Abstract: A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and non-zinc heavy metals; and (ii) calcium and zinc. The chelant contains a functional group selected from the group —CO2H or —PO(R21)R20 or a salt or ester thereof, —C(O)—, —OE, —SE, —N?C(R2)R3, EO—N?C(R2)R3, —N(R2)R3, and —N(C(O)R1)R2 group optionally substituted with a —COOH or —PO(R21)R20 or a salt or ester thereof, —SE or —OE group, wherein R2 and R3 are independently selected from E or forms, with nitrogen, phosphorous, oxygen or sulfur, a heterocyclic ring; E is R1 or —H; R1 is a C1-C30 alkyl or aralkyl group or a derivative thereof and R20 and R21 are independently selected from —OH, —OR1 and R1.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: March 9, 2010
    Assignee: BJ Services Company
    Inventors: Paul H. Javora, Qi Qu
  • Publication number: 20100042037
    Abstract: Method and apparatus for separating plasma from blood in a separation vessel and further separator the separated plasma into desired plasma proteins in a plasma separator fluidly connected to the separation vessel to receive the separated plasma.
    Type: Application
    Filed: April 24, 2009
    Publication date: February 18, 2010
    Applicant: CARIDIANBCT, INC.
    Inventors: Thomas J. FELT, Frank CORBIN, III, Steven Gage URDAHL
  • Publication number: 20100038319
    Abstract: A process for cleaning a wastewater stream which comprises soot and is obtained in the preparation of acetylene, the soot being present in finely divided form in the wastewater, wherein the soot is removed by subjecting the wastewater to a solid concentration by sedimentation and then the soot sludge obtained in the sedimentation is dewatered further by a pressure filtration.
    Type: Application
    Filed: September 12, 2007
    Publication date: February 18, 2010
    Applicant: BASF SE
    Inventors: Achim Boehm, Petra Schmitz-Baeder