Acid Treated Patents (Class 502/408)
  • Patent number: 10377677
    Abstract: Generally, the instant disclosure relates to fertilizer compositions and methods of making and using the same. More specifically, the instant disclosure relates to blast suppressant and/or blast resistant ammonium nitrate fertilizer compositions, as well as methods of making and using the same.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: August 13, 2019
    Assignee: Alcoa USA Corp.
    Inventors: Mark L. Weaver, Kyle A. Crum, Judodine Nichols, David F. Iwig, Steven C. Orkis, Gerald E. Carkin, Deniz Gencaga, Stephen P. Sunday, Ian Ross Harrison, John R. Smith, Shannon I. Parks, Mikhail Gershenzon
  • Patent number: 8969241
    Abstract: A silica precursor having a selective adsorptivity with respect to cobalt ions is disclosed. The silica precursor includes a cross-linked 2,6-diamino pyridine group obtained by using 2,6-diamino pyridine, phosgene and 3-aminopropyltriethoxysilane.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: March 3, 2015
    Assignee: Pusan National University Industry—University Cooperation Foundation
    Inventors: Chang-Sik Ha, Sang Hyun Lee, Sung Soo Park
  • Patent number: 8865020
    Abstract: Provided is an adsorbent having superior adsorption properties for use as a dehumidifying agent for desiccant air conditioning which exhibits high adsorption properties at mid and high humidity ranges, and for use as a gas adsorbent of carbon dioxide, ammonia, formaldehyde and the like. A precursor suspension having a Si/Al ratio of 0.70 to 1.0 is prepared, and the precursor suspension is subsequently heated at 110° C. or higher for 2 days to synthesize a complex of a layered low-crystalline clay mineral and an amorphous aluminum silicate. The obtained complex of the layered low-crystalline clay mineral and the amorphous aluminum silicate yields excellent water vapor adsorption performance of 45 wt % or more at a relative humidity of 60%, and therefore can be used as an adsorbent for desiccant air conditioning.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: October 21, 2014
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Masaya Suzuki, Katsuhiro Tsukimura, Sumiko Kawabata, Chieko Ikeda, Ryousuke Nakanishi, Koji Tajiri, Keiichi Inukai, Masaki Maeda
  • Publication number: 20140261466
    Abstract: Provided is an absorbent including silica of which a raw material is a material originating from a plant which includes silicon, and a silane coupling agent which modifies a surface of the silica. A value of a specific surface area of the silica in accordance with a nitrogen BET method is 10 m2/g or more, and a pore volume of the silica in accordance with a BJH method is 0.1 cm3/g or more.
    Type: Application
    Filed: October 2, 2012
    Publication date: September 18, 2014
    Inventors: Shun Yamanoi, Hironori Iida, Seiichiro Tabata, Machiko Minatoya, Shinichiro Yamada
  • Patent number: 8835350
    Abstract: The present application relates to improved filtration of fluids. Particularly, a surfactant-treated zeolite material may be utilized for removing turbid particles from a volume of fluid, such as water.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: September 16, 2014
    Assignee: Zeotech Corporation
    Inventors: Stephen L. Peterson, Ronald L. Coufal
  • Patent number: 8518856
    Abstract: A solid-state hydrogen storage material and process for making the material more thoroughly rechargeable. The process entails forming a porous matrix material to contain atoms of a first element and hydrogen atoms, in which the atoms of the first element are capable of bonding with more than one hydrogen atom per atom of the first element, and the atoms of the first element are molecularly arranged within the porous matrix material so that different atoms of the first element are bonded to different numbers of hydrogen atoms at correspondingly different levels of bonding energy. At least some of the hydrogen atoms bonded to the atoms of the first element at the lowest bond energies are then removed without removing hydrogen atoms bonded at higher bond energies, after which atoms of a second element are bonded to those atoms of the first element from which hydrogen atoms were removed.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: August 27, 2013
    Assignee: Indiana University Research and Technology Corporation
    Inventor: Peter James Schubert
  • Publication number: 20130196848
    Abstract: Porous inorganic oxide particles, such as porous silica particles, and compositions containing porous inorganic oxide particles are disclosed. Methods of making porous inorganic oxide particles and methods of using porous inorganic oxide particles are also disclosed.
    Type: Application
    Filed: May 19, 2011
    Publication date: August 1, 2013
    Applicant: GRACE GmbH & Co. KG
    Inventors: Markus Kretzschmar, Horst Herrig
  • Patent number: 8338329
    Abstract: The present application relates to improved filtration of fluids. Particularly, a surfactant-treated zeolite material may be utilized for removing turbid particles from a volume of fluid, such as water.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: December 25, 2012
    Assignee: Zeotech Corporation
    Inventors: Stephen L. Peterson, Ronald L. Coufal
  • Patent number: 8039653
    Abstract: Methods, particles, and devices are disclosed for filtration of oil for use of the oil in the preparation of biodiesel. Disclosed particles may comprise a substantially inert porous particle with a coating comprising a polymer having amine, amino, and/or imine group(s).
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: October 18, 2011
    Assignee: Soane Energy, LLC
    Inventors: David Soane, Michael C. Berg, William A. Mowers
  • Patent number: 7825066
    Abstract: A formula and method for rapid neutralization of formaldehyde solutions and vapor is provided. The invention comprises a matrix or medium upon which a mixture of urea, acid, calcium chloride and water is applied and dried. When the treated matrix or medium comes into contact with formaldehyde solution or vapor, the hydroscopic nature of the calcium chloride dried on the medium quickly absorbs and neutralizes the formaldehyde, irreversibly changing the formaldehyde molecules to a nonhazardous and nontoxic polymer. This reduces the risk of exposure to formaldehyde solution and vapor by the technician handling the material.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: November 2, 2010
    Inventors: Donald E. Skaggs, Donald R. Skaggs
  • Patent number: 7736611
    Abstract: A method of producing a material including agglomerated particles of precipitated silica, including preparing a solution of at least two metal salts (Me), wherein the metal ions are divalent or polyvalent. A solution of alkali metal (M) silicate having a molar ratio SiO2/M2O of 1-4 is prepared. The solutions are mixed and the mixture stirred, allowing a coagulum to immediately form. The coagulum is rinsed, collected, dewatered, impregnated and processed to provide a material having a dry matter content of >75%, preferably >97%. A material obtainable by the process is also provided.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: June 15, 2010
    Assignee: Svenska Aerogel AB
    Inventors: Sven-Peter Norberg, Jörgen Abrahamsson, Lars Gösta Lindahl
  • Publication number: 20100113265
    Abstract: Provided is an adsorbent adapted to adsorb carbon dioxide by increasing the pressure, and to carry out 10% or more adsorption and adsorption of the adsorbed carbon dioxide by lowering the pressure at atmospheric pressure or higher in a range of 100 to 900 kPa without vacuuming or the like. As a result of using amorphous aluminum silicate with a Si/Al ratio of 0.7 to 1.0 and having a peak in the vicinity of ?78 ppm and ?87 ppm in a 29Si solid NMR spectrum, adsorption and desorption of 10 wt % or more can be performed in a range of 100 to 900 kPa, and this can be used as a carbon dioxide adsorbent mainly in the pressure swing adsorption method.
    Type: Application
    Filed: April 11, 2008
    Publication date: May 6, 2010
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventors: Masaya Suzuki, Chieko Ikeda, Koji Tajiri, Keiichi Inukai, Masaki Maeda
  • Patent number: 7678178
    Abstract: A system and associated method for removing metal, including metal in vapor form, from high temperature fluid emissions such as may occur at the exhaust of furnaces or thermal treatment equipment. One embodiment is the Integrated Metal Emissions Control System (IMECS™) incorporating both a Steel Screen Particulate (SSP) Filter System and a Perlite Based Sorbent (PBS) System. IMECS™ uses the SSP Filter System, with pore sizes down to one micron, to capture toxic metal particulate materials and the PBS System to capture vapor phase metals using surface-modified perlite. Using the IMECS™, EPA-listed heavy metals have been removed from representative high-temperature emissions in field tests to easily meet the NESHAP standards.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: March 16, 2010
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Veera M. Boddu, Kent James Hay
  • Patent number: 7579299
    Abstract: The invention relates to a process of processing an acid suspension containing at least one solid, wherein (a) the suspension containing at least one solid is mixed with an alkali metal silicate solution, the pH of the mixture being adjusted to a pH of more than 4, and (b) the resulting precipitate which contains the alkali metal silicate and the at least one solid is separated and optionally washed, dried and ground. The mixture according to (a) after aging may be acidified further by the addition of an acid. Furthermore, there are disclosed an adsorbent obtainable according to the preceding process, and the use thereof.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: August 25, 2009
    Assignee: Sud-Chemie AG
    Inventors: Uwe Flessner, José Antonio Ortiz Niembro, Klaus Schurz, Werner Zschau
  • Patent number: 7537742
    Abstract: This invention discloses an optimum set of adsorbents for use in H2-PSA processes. Each adsorbent bed is divided into four regions; Region 1 contains adsorbent for removing water; Region 2 contains a mixture of strong and weak adsorbents to remove bulk impurities like CO2; Region 3 contains a high bulk density (>38 lbm/ft3) adsorbent to remove remaining CO2; and most of CH4 and CO present in H2 containing feed mixtures; and Region 4 contains adsorbent having high Henry's law constants for the final cleanup of N2 and residual impurities to produce hydrogen at the desired high purity.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: May 26, 2009
    Assignee: Praxair Technology, Inc.
    Inventors: Mohamed Safdar Allie Baksh, Mark William Ackley, Frank Notaro
  • Publication number: 20090065435
    Abstract: Biogenic silica is produced by combusting a biogenic source material such as rice hulls to give rich hull ash (RHA), and the combusted biogenic silica may be subsequently treated to improve the filtration or adsorption properties thereof e.g. by changing the surface charge, the surface tension, the surface area, the average pore size, the pore size distribution, particle size distribution, and/or the permeability thereof. Such biogenic silica is useful to remove a species, such as an impurity, from a fluid to purify the fluid and/or to recover the species therefrom. RHA may be used to remove species including organic, inorganic or microbial particulates, surfactants, metal ions, non-metallic anions, organic compounds, color bodies, odor-producing species, chlorinated compound, pigment, free fatty acids, phospholipids, peroxides, oil and/or grease different from the non-aqueous fluid, algae, bacteria, and combinations thereof.
    Type: Application
    Filed: September 8, 2008
    Publication date: March 12, 2009
    Applicant: Powell Intellectual Property Holdings, LLC
    Inventors: Wenping Li, Carl E. Kiser
  • Patent number: 7354750
    Abstract: The present invention provides compositions and methods for the separation of metals or molecules such as polypeptides, nucleic acids, or endotoxins using a metal-modified solid support. The metals or molecules are isolated from a starting material using the modified solid supports of the invention. Also provided by the invention are kits that can be used in connection with the inventive methods.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: April 8, 2008
    Assignee: Promega Corporation
    Inventors: Daniel J. Simpson, Tonny Johnson, John Shultz, Roderick G. Flemming, Rebecca Godat, Sanchayita Kar, Robin Hurst
  • Patent number: 7304016
    Abstract: The present invention provides compositions for the separation of metals or biomolecules such as polypeptides, nucleic acids, or endotoxins using modified solid supports.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: December 4, 2007
    Assignee: Promega Corporation
    Inventors: Daniel J. Simpson, Tonny M. Johnson, Roderick G. Flemming
  • Patent number: 7304015
    Abstract: The present invention provides compositions for the separation of metals or biomolecules such as polypeptides, nucleic acids, or endotoxins using modified solid supports.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: December 4, 2007
    Assignee: Promega Corporation
    Inventors: Daniel J. Simpson, Tonny Johnson, Roderick G. Flemming
  • Patent number: 7244689
    Abstract: Alumina-silica catalyst supports having substantially high surfaces areas are formed by extrusion, drying and firing of a plasticized batch including an alumina-silica powder component, acid, organic binder and water. The alumina-silica powder component can be formed either by the mixing of alumina- and silica-source powders or by forming a slurry therefrom which is spray dried to form a particulate material prior to batching.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: July 17, 2007
    Assignee: Corning Incorporated
    Inventors: William P. Addiego, Kevin R. Brundage, Christopher R. Glose
  • Patent number: 7220704
    Abstract: A composition comprising a promoter and a metal oxide selected from the group consisting of a gallium oxide, an indium oxide, and combinations of any two or more thereof, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: May 22, 2007
    Assignee: ConocoPhillips Company
    Inventors: Robert W. Morton, Jason J. Gislason, M. Bruce Welch, David E. Simon, Roland Schmidt
  • Patent number: 7147769
    Abstract: A composition comprising a metal oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter, and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: December 12, 2006
    Assignee: ConocoPhillips Company
    Inventors: Tushar V. Choudhary, Glenn W. Dodwell, Marvin M. Johnson, Edward L. Sughrue, II, Robert W. Morton
  • Patent number: 7128884
    Abstract: Highly purified, porous silica microspheres contain functional groups which are capable of selectively binding to reaction impurities, such as excess reactant or reaction by-products, which are contained in a reaction medium. The reaction impurities can thereby be efficiently removed from the reaction medium, providing a convenient method for product purification.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: October 31, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Joseph J. Kirkland, Timothy J. Langlois, Qunjie Wang
  • Patent number: 7112552
    Abstract: The present invention provides compositions for the separation of metals or biomolecules such as polypeptides, nucleic acids, or endotoxins using modified solid supports.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: September 26, 2006
    Assignee: Promega Corporation
    Inventors: Daniel J. Simpson, Tonny Johnson, Roderick G. Flemming
  • Patent number: 7053023
    Abstract: The invention is directed to a method for producing adsorption agent granules on the basis of acid-activated layer silicates, wherein by the acid activation at least 10% of the aluminium oxide present in the starting material is removed, and wherein the filtered material obtained after acid activation is formed by high compacting forming steps, and an increase in bulk density of at least 10% is achieved.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: May 30, 2006
    Assignee: Sud-Chemie AG
    Inventor: Uwe Flessner
  • Patent number: 7041623
    Abstract: Highly purified, porous silica microspheres contain functional groups which are capable of selectively binding to reaction impurities, such as excess reactant or reaction by-products, which are contained in a reaction medium. The reaction impurities can thereby be efficiently removed from the reaction medium, providing a convenient method for product purification.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: May 9, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: Joseph J. Kirkland, Timothy J. Langlois, Ounjie Wang
  • Patent number: 6806227
    Abstract: Solid materials have been developed to remove contaminating metals and organic compounds from aqueous media. The contaminants are removed by passing the aqueous phase through the solid materials which can be in molded, granular, or powder form. The solid materials adsorb the metals and the organics leaving a purified aqueous stream. The materials are sol-gel and or sol-gel and granulated activated carbon (GAC) mixtures. The species-specific adsorption occurs through specific chemical modifications of the solids tailored towards the contaminant(s). The contaminated solid materials can then be disposed of or the contaminant can be removed and the solids recycled.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: October 19, 2004
    Assignee: The Regents of the University of California
    Inventors: Paul R. Coronado, John G. Reynolds, Sabre J. Coleman
  • Patent number: 6645908
    Abstract: Described is a method for producing copolymerized sol-gel derived sorbent particles for the production of copolymerized sol-gel derived sorbent material. The method for producing copolymerized sol-gel derived sorbent particles comprises adding a basic solution to an aqueous metal alkoxide mixture for a pH≦8 to hydrolyze the metal alkoxides. Then, allowing the mixture to react at room temperature for a precalculated period of time for the mixture to undergo an increased in viscosity to obtain a desired pore size and surface area. The copolymerized mixture is then added to an immiscible, nonpolar solvent that has been heated to a sufficient temperature wherein the copolymerized mixture forms a solid upon the addition. The solid is recovered from the mixture, and is ready for use in an active sampling trap or activated for use in a passive sampling trap.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: November 11, 2003
    Assignee: UT-Battelle, LLC
    Inventors: Michael E. Sigman, Amy B. Dindal
  • Publication number: 20030136739
    Abstract: Highly purified, porous silica microspheres contain functional groups which are capable of selectively binding to reaction impurities, such as excess reactant or reaction by-products, which are contained in a reaction medium. The reaction impurities can thereby be efficiently removed from the reaction medium, providing a convenient method for product purification.
    Type: Application
    Filed: October 23, 2002
    Publication date: July 24, 2003
    Inventors: Joseph J. Kirkland, Timothy J. Langlois, Qunjie Wang
  • Publication number: 20030104937
    Abstract: The present invention provides compositions including a mixture containing sulfides and/or polysulfides of ammonium, sodium, potassium, lithium, etc.
    Type: Application
    Filed: November 12, 2002
    Publication date: June 5, 2003
    Inventor: Rabindra K. Sinha
  • Patent number: 6547854
    Abstract: A new method for making low-cost CO2 sorbents that can be used in large-scale gas-solid processes. The new method entails treating a solid substrate with acid or base and simultaneous or subsequent treatment with a substituted amine salt. The method eliminates the need for organic solvents and polymeric materials for the preparation of CO2 capture systems.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: April 15, 2003
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: McMahan L. Gray, Yee Soong, Kenneth J. Champagne
  • Patent number: 6482324
    Abstract: Highly purified, porous silica microspheres contain functional groups which are capable of selectively binding to reaction impurities, such as excess reactant or reaction by-products, which are contained in a reaction medium. The reaction impurities can thereby be efficiently removed from the reaction medium, providing a convenient method for product purification.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: November 19, 2002
    Assignee: Agilent Technologies, Inc.
    Inventors: Joseph J. Kirkland, Timothy J. Langlois, Ounjie Wang
  • Patent number: 6436294
    Abstract: A process for modifying a medium is disclosed that includes treating a medium having a metal ion sorption capacity with a solution that includes: A) an agent capable of forming a complex with metal ions; and B) ions selected from the group consisting of sodium ions, potassium ions, magnesium ions, and combinations thereof, to create a medium having an increased capacity to sorb metal ions relative to the untreated medium.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: August 20, 2002
    Assignee: 3M Innovative Properties Company
    Inventor: Susan H. Lundquist
  • Patent number: 6342191
    Abstract: This invention relates to a process for producing an enhanced adsorbent particle comprising contacting a non-amorphous, non-ceramic, crystalline, porous, calcined, aluminum oxide particle that was produced by calcining at a particle temperature of from 300° C. to 700° C., with an acid for a sufficient time to increase the adsorbent properties of the particle. A process for producing an enhanced adsorbent particle comprising contacting a non-ceramic, porous, oxide adsorbent particle with an acid for a sufficient time to increase the adsorbent properties of the particle is also disclosed. Particles made by the process of the instant invention and particle uses, such as remediation of waste streams, are also provided. The invention also relates to a method for producing an adsorbent and/or catalyst and binder system. The invention also relates to particles made by the process, binders, and methods for remediating contaminants in a stream.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: January 29, 2002
    Assignee: Apyron Technologies, Inc.
    Inventors: Bryan E. Kepner, Eric A. Mintz
  • Patent number: 6338830
    Abstract: The invention relates to a method for producing an adsorbent and/or catalyst and binder system comprising I) mixing components comprising (a) a binder comprising a colloidal metal oxide or colloidal metalloid oxide, (b) an oxide adsorbent and/or catalyst particle, and (c) an acid, (ii) removing a sufficient amount of water from the mixture to cross-link components a and b to form an adsorbent and/or catalyst and binder system. The invention also relates to particles made by the process, binders, and methods for remediating contaminants in a stream.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: January 15, 2002
    Assignee: Apyron Technologies, Inc.
    Inventors: Mark L. Moskovitz, Bryan E. Kepner
  • Publication number: 20010014651
    Abstract: Methods of improving the flow properties of one or more dry particulate cementitious materials are provided. The methods are basically comprised of dry-blending a particulate flow enhancing additive comprised of a particulate solid adsorbent material having a flow inducing polar molecule producing chemical adsorbed thereon with said cementitious materials.
    Type: Application
    Filed: March 23, 2001
    Publication date: August 16, 2001
    Inventors: Baireddy R. Reddy, Ronald E. Sweatman, James F. Heathman, Russell M. Fitzgerald, Ronald J. Crook
  • Patent number: 6251280
    Abstract: The present invention relates generally to mesoporous sorbent materials having high capacity, high selectivity, fast kinetics, and molecular recognition capability. The invention also relates to a process for preparing these mesoporous substrates through molecular imprinting techniques which differ from convention techniques in that a template molecule is bound to one end of bifunctional ligands to form a complex prior to binding of the bifunctional ligands to the substrate. The present invention also relates to methods of using the mesoporous sorbent materials, for example, in the separation of toxic metals from process effluents, paints, and other samples; detection of target molecules, such as amino acids, drugs, herbicides, fertilizers, and TNT, in samples; separation and/or detection of substances using chromatography; imaging agents; sensors; coatings; and composites.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: June 26, 2001
    Assignees: University of Tennessee Research Corporation, U. T. Battelle, LLC
    Inventors: Sheng Dai, Mark C. Burleigh, Yongsoon Shin
  • Patent number: 6133497
    Abstract: A catalyst is described on the basis of acid-activated smectitic clay minerals for removing olefins from aromatic compounds or mixtures of aromatic compounds which is characterized in that the acid-activated clay mineral contains at least 5 milli-equivalents/100 g of exchangeable Al.sup.3+ cations.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: October 17, 2000
    Assignee: Sud-Chemie A.G.
    Inventors: Reinhard Hahn, Thomas Engelhardt, Uwe Flessner, Werner Zschau
  • Patent number: 6017508
    Abstract: A process of modifying the porosity of an aluminosilicate or silica whose porosity is not amenable to modification by acid extraction. The process involves contacting said aluminosilicate or silica with an alkali aluminate, and then extracting the aluminate-treated material with an extraction agent so as to form the porosity-modified aluminosilicate or silica. The process is applicable to zeolites which are unreactive under acid extraction conditions, e.g. ferrierite, and applicable to zeolites which are structurally unstable under acid extraction conditions, such as the mineral bikitaite. Mesoporous compositions are disclosed, including a mesoporous ferrierite and a mesoporous zeolite DCM-3.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: January 25, 2000
    Assignee: The Dow Chemical Company
    Inventors: Dean M. Millar, Juan M. Garces
  • Patent number: 5985790
    Abstract: This invention relates to a process for producing an enhanced adsorbent particle comprising contacting a non-amorphous, non-ceramic, crystalline, porous, calcined, aluminum oxide particle that was produced by calcining at a particle temperature of from 400.degree. C. to 700.degree. C., with an acid for a sufficient time to increase the adsorbent properties of the particle. A process for producing an enhanced adsorbent particle comprising contacting a non-ceramic, porous, oxide adsorbent particle with an acid for a sufficient time to increase the adsorbent properties of the particle is also disclosed. Particles made by the process of the instant invention and particle uses, such as remediation of waste streams, are also provided.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: November 16, 1999
    Assignee: Project Earth Industries, Inc.
    Inventors: Mark L. Moskovitz, Bryan E. Kepner
  • Patent number: 5948726
    Abstract: The invention relates to a method for producing an adsorbent and/or catalyst and binder system comprising I) mixing components comprising (a) a binder comprising a colloidal metal oxide or colloidal metalloid oxide, (b) an oxide adsorbent and/or catalyst particle, and (c) an acid, (ii) removing a sufficient amount of water from the mixture to cross-link components a and b to form an adsorbent and/or catalyst and binder system. The invention also relates to particles made by the process, binders, and methods for remediating contaminants in a stream.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: September 7, 1999
    Assignee: Project Earth Industries, Inc.
    Inventors: Mark L. Moskovitz, Bryan E. Kepner
  • Patent number: 5935895
    Abstract: A silica-titania mixed oxide catalyst and its method of manufacture is disclosed. Such catalysts can be used especially to catalyze the epoxidation of olefinically unsaturated compounds with organic hydroperoxides.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: August 10, 1999
    Assignee: Roche Vitamins Inc.
    Inventors: Alfons Baiker, Dominique Dutoit, Remo Hutter
  • Patent number: 5888402
    Abstract: Process for the purification of a hydrocarbon stream by removing contaminating compounds contained in the hydrocarbon stream by contact with a solid adsorbent material and withdrawing a purified hydrocarbon stream, the improvement of which comprises passing the hydrocarbon stream through a first zone of the adsorbent material having supported thereon a fluorinated sulphonic acid and subsequently through zone of the adsorbent material.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: March 30, 1999
    Assignee: Haldor Topsoe A/S
    Inventors: Sven Ivar Hommeltoft, Ole Ekelung
  • Patent number: 5814209
    Abstract: Disclosed is a process for the ecological usage of acid effluents. Also disclosed is a sorption agent which is characterized in that an acid effluent, created from the production of fullers earth which contains as main ingredients Fe.sup.2+/3+ -, Al.sup.3+ -, Ca.sup.2+ - and Mg.sup.2+ cations and inorganic anions, is reacted with an alkali silicate. The resultant precipitate is separated in an aqueous phase and, when necessary, purified and dried. The sorption agent can be used for the bleaching of oils or for the removal of soaps, phospholipids and heavy metals from oils, specifically edible oils.
    Type: Grant
    Filed: October 2, 1994
    Date of Patent: September 29, 1998
    Assignee: Sud-Chemie AG
    Inventors: Reinhard Hahn, Klaus Schurz, Hans Buckl, Wolfgang Eisenschmid
  • Patent number: 5780563
    Abstract: A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support having immobilized thereon a least one strong Lewis acid comprising at least one metal salt of a strong Bronsted acid wherein the metal is selected from the group consisting of aluminum, boron gallium, antimony, tantalum, niobium, yttrium, cobalt, nickel, iron, tin, zinc, magnesium barium strontium, calcium, tungsten, molybdenum and the metals of the lanthanide series and wherein the strong Bronsted acid is selected from the group consisting of mineral and organic acids stronger than 100% sulfuric acid.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: July 14, 1998
    Assignee: Exxon Chemical Patents Inc
    Inventors: Frank Joung-yei Chen, Alain Guyot, Thierry Hamaide, Christophe Le Deore
  • Patent number: 5714429
    Abstract: This invention relates to a novel catalyst composition comprising a heteropolyacid and a siliceous support which is in the form of extrudates or pellets and to a process for hydrating olefins to the corresponding alcohols in the vapour phase in the presence of such a catalyst composition. By using the specific catalyst composition described herein it is possible not only to increase the space-time-yield of a process but also to prolong the life thereof thereby reducing the frequency with which the catalyst is changed or replaced on a plant, especially in an olefin hydration process.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 3, 1998
    Assignee: BP Chemicals Limited
    Inventor: Gordon John Haining
  • Patent number: 5707516
    Abstract: Column packings for liquid chromatography comprising porous granules which have hydrophilic surfaces prepared by calcining a crystalline clay mineral having a fibrous structure. Median pore diameter of the porous ceramic granules is in the range of from 0.001 .mu.m to 0.01 .mu.m. The crystalline clay mineral can be sepiolite or attapulgite. The column packings for liquid chromatography have high mechanical strength, are presssure resistant and very stable to elutants having a high pH value and/or a high polarity so that the separating characteristics thereof are not changed even after long use.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: January 13, 1998
    Assignee: Snow Brand Milk Products Co., Ltd.
    Inventors: Akira Tomizawa, Akinori Shigematsu, Hisashi Matsuda, Naoki Koga, Keisuke Hisada
  • Patent number: 5650506
    Abstract: The present invention relates to modified glass fiber membranes which exhibit sufficient hydrophilicity and sufficient electropositivity to bind DNA from a suspension containing DNA and permit elution of the DNA from the membrane. Generally, the hydrophilic and electropositive characteristics are expressed at the surface of the modified glass fiber membrane. Preferred modified glass fiber membranes of the present invention include glass fiber membranes that have been modified by treatment with trifluoroacetic acid (TFA), BCl.sub.3, SiCl.sub.4, NaOH, F.sup.-, AlCl.sub.3 alone or in combination, with or without water. The modified glass fiber membranes of the present invention are particularly useful in processes for purification of DNA from other cellular components.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: July 22, 1997
    Assignee: Becton Dickinson and Company
    Inventors: Daniel Lee Woodard, Adriann Jeanelle Howard, James Arthur Down
  • Patent number: 5625054
    Abstract: The present invention relates to fluorinated surfaces which exhibit sufficient hydrophilicity and sufficient electropositivity to bind DNA from a suspension containing DNA and permit elution of the DNA from the surface. Generally, the hydrophilic and electropositive characteristics are expressed at the fluorinated surface. Preferred fluorinated surfaces of the present invention include fluorinated Al(OH).sub.3, fluorinated SiO.sub.2 and fluorinated Celite. The fluorinated surfaces of the present invention are particularly useful in processes for purification of DNA from other cellular components. In these processes, a suspension of cellular components is placed in contact with the fluorinated surface, the fluorinated surface is washed to remove all cellular components other than DNA which are bound to the surface, and the bound DNA is eluted from the surface. Lower concentrations of chaotrope in the binding buffer are needed to bind DNA to the fluorinated surfaces.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: April 29, 1997
    Assignee: Becton Dickinson and Company
    Inventors: Daniel L. Woodard, Adriann J. Howard, James A. Down
  • Patent number: 5616701
    Abstract: The present invention relates to modified glass fiber membranes which exhibit sufficient hydrophilicity and sufficient electropositivity to bind DNA from a suspension containing DNA and permit elution of the DNA from the membrane. Generally, the hydrophilic and electropositive characteristics are expressed at the surface of the modified glass fiber membrane. Preferred modified glass fiber membranes of the present invention include glass fiber membranes that have been modified by treatment with trifluoroacetic acid (TFA), BCl.sub.3, SiCl.sub.4, NaOH, F.sup.-, AlCl.sub.3 alone or in combination, with or without water. The modified glass fiber membranes of the present invention are particularly useful in processes for purification of DNA from other cellular components.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: April 1, 1997
    Assignee: Becton Dickinson and Company
    Inventors: Daniel L. Woodard, Adriann J. Howard, James A. Down