Forming Catalyst, Sorbent Activated, Or Narrow Pore Alumina Patents (Class 423/628)
  • Patent number: 11559783
    Abstract: The present invention relates to the field of solid materials for the adsorption of lithium. In particular, the present invention relates to a new method for the preparation of a crystallized and shaped solid material, preferably in extruded form, of the formula (LiCl)x.2Al(OH)3,nH2O, wherein n is between 0.01 and 10, x is between 0.4 and 1, wherein it comprises a step a) of precipitation of boehmite under specific temperature and pH conditions, a step of bringing into contact the precipitate obtained with LiCl, at least one acid extrusion-kneading shaping step, wherein the method also comprises a final hydrothermal treatment step, all of which makes it possible to increase the lithium adsorption capacity, the adsorption kinetics, as well as the lithium/boron selectivity of the materials obtained with respect to the materials of the prior art, when it is used in a lithium extraction method of saline solutions.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: January 24, 2023
    Assignees: ERAMET, IFP ENERGIES NOUVELLES
    Inventors: Vincent Lecocq, Fabien André Pierre Burdet, Yohan Florent Oudart, Guillaume Patrick André Maillet
  • Patent number: 11554967
    Abstract: Provided is a method for producing a porous metal oxide. The method includes: preparing a slurry by mixing a metal source, a pore forming agent and an aqueous solvent; drying the slurry to obtain a metal oxide precursor; and sintering the metal oxide precursor to generate a porous metal oxide. The metal source is an organometallic compound or hydrolyzate thereof containing a metal that makes up the porous metal oxide; the pore forming agent is an inorganic compound that generates a gas by decomposing at a temperature equal to or lower than a temperature at which the metal oxide precursor is sintered; and the slurry is prepared using 50 parts by weight or more of the pore forming agent with respect to 100 parts by weight of the metal source.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: January 17, 2023
    Assignee: FUJIMI INCORPORATED
    Inventors: Shogo Tsubota, Robert Hepburn
  • Patent number: 11370976
    Abstract: Process for hydrogenating at least one aromatic or polyaromatic compound contained in a hydrocarbon feedstock having a final boiling point of less than or equal to 650° C., said process being performed in the gas phase or in the liquid phase at a temperature of between 30 and 350° C., at a pressure of between 0.1 and 20 MPa, at a hydrogen/(aromatic compounds to be hydrogenated) mole ratio of between 0.1 and 10 and at an hourly space velocity (HSV) of between 0.05 and 50 h?1, in the presence of a catalyst comprising an active phase comprising nickel, said active phase not comprising any group VIB metal, and a support comprising an amorphous mesoporous alumina having a connectivity (Z) of greater than 2.7, the connectivity being determined from the nitrogen adsorption/desorption isotherms.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: June 28, 2022
    Assignee: IFP Energies Nouvelles
    Inventors: Malika Boualleg, Anne-Claire Dubreuil
  • Patent number: 11358135
    Abstract: This invention discloses a preparation method of a hydrocracking catalyst. According to the method, a new functional group is modified through chemical bonds on the surface of a traditionally prepared inorganic carrier, and a VIB group metal element and a VIIIB metal element are then loaded on the carrier to prepare the hydrocracking catalyst. The hydrocracking catalyst prepared according to the invention has a higher diesel liquid yield.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: June 14, 2022
    Assignees: SINOCHEM ENERGY CO., LTD., SINOCHEM QUANZHOU PETROCHEMICAL CO., LTD., SINOCHEM QUANZHOU ENERGY TECHNOLOGY CO. LTD
    Inventors: Changkun Liu, Wenqing Fan, Jintian Wu, Li Zhang
  • Patent number: 10766019
    Abstract: The present invention relates to an olefin metathesis reaction catalyst where rhenium (Re) oxide or molybdenum (Mo) oxide is supported, as a catalyst main component, on a surface-modified mesoporous silica or mesoporous alumina support, and a preparation method therefor. The olefin metathesis reaction catalyst of the present invention allows highly efficient metathesis of long-chain unsaturated hydrocarbons having at least eight carbons at a low temperature of 150° C. or lower. The catalyst can be separated readily from reaction solution, regenerated at a low temperature of 400° C. or lower by removing toxins accumulated on it during the metathesis reaction, and used repeatedly in metathesis reaction many times, thereby being made good use in commercial olefin metathesis processes.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: September 8, 2020
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Jong Yeol Jeon, Man Jae Gil, Dong Won Hwang, Young Kyu Hwang, Yoo Han Han
  • Patent number: 10633258
    Abstract: A process for producing alumina, the process having a seeding phase and a precipitation phase. During the seeding phase a seed mixture is produced by adding an aluminium salt to an aqueous solution and then adding an alkaline metal aluminate to the mixture while maintaining the seed mixture at generally neutral pH. The precipitation phase produces precipitated alumina by simultaneously adding aluminium salt and alkaline metal aluminate to the seed mixture while maintaining a pH from 6.9 to 7.8. The recovered precipitated alumina has at least one, preferably all the following characteristics: i) a crystallite size of 33-42 Ang.: in the (120) diagonal plane (using XRD); ii) a crystallite d-spacing (020) of between 6.30-6.59 Ang.; iii) a high porosity with an average pore diameter of 115-166 Ang.; iv) a relatively low bulk density of 250-350 kg/m3; v) a surface area after calcination for 24 hours at 1100° C. of 60-80 m2/g; and vi) a pore volume after calcination for one hour at 1000° C. 0.8-1.1 m3/g.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: April 28, 2020
    Assignee: Sasol Performance Chemicals GmbH
    Inventor: Maria Roberta Rabaioli
  • Patent number: 10507460
    Abstract: A microspherical fluid catalytic cracking catalyst includes zeolite, and alkali metal alkaline earth metal ion.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: December 17, 2019
    Assignee: BASF CORPORATION
    Inventor: Karl C. Kharas
  • Patent number: 10035133
    Abstract: A catalytic converter includes a catalyst. The catalyst includes a metal oxide support and platinum group metal (PGM) complexes atomically dispersed on the metal oxide support. The PGM complexes include a PGM species selected from the group consisting of an atom of a platinum group metal, a cluster including from 2 atoms to less than 10 atoms of the platinum group metal, a nanoparticle including 10 or more atoms of the platinum group metal, and combinations thereof. An alkali metal or an alkaline earth metal is bonded to the PGM species. The alkali or alkaline earth metal is part of a structure including oxygen atoms and hydrogen atoms. A barrier is disposed between a first PGM complex and a second PGM complex.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: July 31, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ming Yang, Xingcheng Xiao, Ryan J. Day, Gongshin Qi
  • Patent number: 8999882
    Abstract: A process for treating a carrier, or a precursor thereof, to at least partly remove impurities from the carrier, or the precursor thereof, comprising: contacting the carrier, or the precursor thereof, with a treatment solution comprising a salt in a concentration of at most 0.05 molar, wherein the salt comprises a cation and an anion, and wherein the cation is selected from ammonium, phosphonium, organic cations and combinations thereof, and wherein the anion is selected from organic anions, inorganic carboxylates, oxyanions of elements from Groups IIIA through VIIA of the Periodic Table of Elements, and combinations thereof; and separating at least part of the treatment solution from the carrier, or the precursor thereof.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: April 7, 2015
    Assignee: Shell Oil Company
    Inventors: John Robert Lockemeyer, Randall Clayton Yeates
  • Patent number: 8969239
    Abstract: A method of hydroprocessing a heavy hydrocarbon feedstock using a hydroprocessing catalyst having specific properties making it effective in the hydroconversion of at least a portion of the heavy hydrocarbon feedstock to lighter hydrocarbons. The hydroprocessing catalyst comprises a Group VIB metal component (e.g., Cr, Mo, and W), a Group VIII metal component (e.g., Ni and Co) and, optionally, a potassium metal component that are supported on a support material comprising alumina. The alumina has novel physical properties that, in combination with the catalytic components, provide for the hydroprocessing catalyst. The hydroprocessing catalyst is particularly effective in the conversion of the heavy hydrocarbon feedstock. The alumina is characterized as having a high pore volume and a high surface area with a large proportion of the pore volume being present in the pores within a narrow pore diameter distribution about a narrowly defined range of median pore diameters.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: March 3, 2015
    Assignee: Shell Oil Company
    Inventors: Josiane Marie-Rose Ginestra, Russell Craig Ackerman, Christian Gabriel Michel
  • Publication number: 20140369922
    Abstract: A method of surface modification of an alumina carrier. The method includes: 1) dissolving a soluble kazoe in deionized water to yield a kazoe aqueous solution; 2) submerging an alumina carrier in the kazoe aqueous solution and drying the alumina carrier in a vacuum environment; 3) placing the dried alumina carrier in a reactor, adding silicon tetrachloride and Grignard reagent dropwise to the reactor, sealing the reactor and heating it to a constant temperature, and maintaining the constant temperature for between 3 and 18 hours, where a volume ratio of the added silicon tetrachloride and the alumina carrier is between 0.5:1 and 5:1, the constant temperature is controlled to be between 160 and 350° C.; and 4) cooling the reactor, filtering, washing, and drying the alumina carrier in the vacuum environment.
    Type: Application
    Filed: September 4, 2014
    Publication date: December 18, 2014
    Inventors: Shenke ZHENG, Dechen SONG, Xiaodong ZHAN
  • Patent number: 8895468
    Abstract: Provided are methods of making dehydrogenation catalyst supports containing bayerite and silica. Silica-stabilized alumina powder, prepared by spray drying of bayerite powder, precipitating silica in a bayerite slurry with an acid, or impregnation or co-extrusion of bayerite with sodium silicate solution was found to be a superior catalyst support precursor. Catalysts prepared with these silica containing support materials have higher hydrothermal stability than current CATOFIN® catalysts. Also provided is a dehydrogenation catalyst comprising Cr2O3, an alkali metal oxide, SiO2 and Al2O3, and methods of using said catalyst to make an olefin and/or dehydrogenate a dehydrogenatable hydrocarbon.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: November 25, 2014
    Assignee: BASF Corporation
    Inventors: Wolfgang Ruettinger, Richard Jacubinas
  • Publication number: 20140296062
    Abstract: A process for preparing a mesoporous metal oxide, i.e., transition metal oxide, Lanthanide metal oxide, a post-transition metal oxide and metalloid oxide. The process comprises providing an acidic mixture comprising a metal precursor, an interface modifier, a hydrotropic ion precursor, and a surfactant; and heating the acidic mixture at a temperature and for a period of time sufficient to form the mesoporous metal oxide. A mesoporous metal oxide prepared by the above process. A method of controlling nano-sized wall crystallinity and mesoporosity in mesoporous metal oxides. The method comprises providing an acidic mixture comprising a metal precursor, an interface modifier, a hydrotropic ion precursor, and a surfactant; and heating the acidic mixture at a temperature and for a period of time sufficient to control nano-sized wall crystallinity and mesoporosity in the mesoporous metal oxides. Mesoporous metal oxides and a method of tuning structural properties of mesoporous metal oxides.
    Type: Application
    Filed: September 25, 2013
    Publication date: October 2, 2014
    Applicant: UNIVERSITY OF CONNECTICUT
    Inventors: Steven L. Suib, Altug Suleyman Poyraz
  • Patent number: 8828904
    Abstract: The present invention is a process for making an inorganic/organic hybrid totally porous spherical silica particles by self assembly of surfactants that serve as organic templates via pseudomorphic transformation.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: September 9, 2014
    Assignee: Agilent Technologies, Inc.
    Inventors: Ta-Chen Wei, Wu Chen, William E. Barber
  • Publication number: 20140221196
    Abstract: Silver based ethylene oxide catalysts having enhanced stability are disclosed. The enhanced stability silver based ethylene oxide catalysts include an alumina carrier which has been modified to include cavities on the surface of the carrier. The presence of the cavities on the surface of the modified carrier stops or at least impedes the motion of silver particles on the surface of the carrier during an epoxidation process. In particular, the cavities on the surface of the alumina carrier effectively trap and/or anchor silver particles and prevent them from further motion.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 7, 2014
    Applicant: Scientific Design Company, Inc.
    Inventors: Wojciech Suchanek, Andrzej Rokicki
  • Patent number: 8759241
    Abstract: A method for making a catalyst composition suitable for various purposes, such as the reduction of nitrogen oxides, is provided. The method includes combining dawsonite or a dawsonite derivative with a catalytic active element.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: June 24, 2014
    Assignee: General Electric Company
    Inventor: Venkat Subramaniam Venkataramani
  • Patent number: 8685283
    Abstract: Micelle-templated superficially porous particles having a solid core and an outer porous shell with ordered pore structures and a narrow particle size distribution, such as about ±5% (one sigma), and a high specific surface area of about 5 to about 1000 m2/g.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: April 1, 2014
    Assignee: Agilent Technologies, Inc.
    Inventors: Ta-Chen Wei, Wu Chen, William E. Barber
  • Patent number: 8664137
    Abstract: A regenerating method for activated alumina used in regenerating working fluid of hydrogen peroxide comprises the following steps: adding deactivated alumina discharged from a regenerating bed for working fluid of hydrogen peroxide into a reactor through the top of the reactor and settling by gravity, oxidizing atmosphere entering into the reactor from the bottom of the reactor and running upwardly, then discharging exit gas and regenerated alumina through the discharge port on the top and discharging device on the bottom of the reactor respectively. The method is economic, environment-protective, safe, low-costly. The regenerated alumina will not poison palladium catalyst.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: March 4, 2014
    Assignee: Shanghai Huaming Hi-Tech (Group) Co., Ltd.
    Inventors: Qiufang Wu, Guojian Chen, Fuqing Li, Xinsheng Ma, Gang Chen, Jinghui Yang, Zhiping Zhang
  • Patent number: 8664138
    Abstract: A regenerating method for activated alumina used in regenerating working fluid of hydrogen peroxide comprises the following steps: adding deactivated alumina discharged from a regenerating bed for working fluid of hydrogen peroxide with fire resistant alumina into a reactor through the top of the reactor and settling by gravity, oxidizing atmosphere entering into the reactor from the bottom of the reactor and running upwardly, discharging regenerated alumina and fire resistant alumina through the discharging device on the bottom of the reactor, discharging exit gas through the discharge port on the top of the reactor, the reaction temperature ranging from 360-800° C., the residence time of solid feed in the reactor ranging from 3-15 h. The method is economic, environment-protective, safe, and low-costly. The regenerated alumina will not poison palladium catalyst.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: March 4, 2014
    Assignee: Shanghai Huaming Hi-Tech (Group) Co., Ltd.
    Inventors: Fuqing Li, Xinsheng Ma, Gang Chen, Qiufang Wu, Guojian Chen, Yubao Gan, Jinghui Yang
  • Publication number: 20140038820
    Abstract: The invention relates to a substrate material, which is highly porous and which is provided with a mechanically stable, component-penetrating framework structure made of alpha-Al2O3, to methods for producing the substrate material, and to the use of the substrate material.
    Type: Application
    Filed: April 23, 2012
    Publication date: February 6, 2014
    Applicant: CERAM TEC GMBH
    Inventors: Roland Heinl, Peter Schröter, Klaus Stöckl
  • Publication number: 20140038819
    Abstract: The invention relates to a substrate material, which is highly porous and which is provided with a mechanically stable, component-penetrating framework structure made of alpha-Al2O3, to methods for producing the substrate material, and to the use of the substrate material.
    Type: Application
    Filed: April 23, 2012
    Publication date: February 6, 2014
    Applicant: Ceram Tec GmbH
    Inventors: Roland Heinl, Peter Schröter, Klaus Stöckl
  • Patent number: 8633129
    Abstract: The invention relates to a method for preparing a chemical composition obtained by co-impregnating water-soluble salts Ba/Mg and phosphoric acid H3PO4 on boehmite alumina which has been calcined in the presence of water vapor. Said chemical composition is used as an additive in the catalytic cracking process in order to capture metals originating from the charge, particularly vanadium, in the presence of SO2 and thus to protect the activity and selectivity of the catalytic cracking catalyst.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: January 21, 2014
    Assignee: Ecopetrol S.A.
    Inventors: Luis Oswaldo Almanza Rubiano, Luis Javier Hoyos Marin, Cesar Vergel Hernández
  • Patent number: 8633130
    Abstract: The invention relates to chemical compositions that can be used for hydrocarbon catalytic cracking processes with vanadium as a contaminant, including an active phase formed by different pyrophosphates M2P2O7 (M=Ba or Ca) supported on a mixture of magnesium and aluminum oxide, preferably magnesium aluminate in the spinel phase. The composition captures the metals originating from the charge, particularly vanadium, and thus protects the catalyst. Said composition is preferably used in the form of a separated particle in order to the control the addition thereof to the unit according to the metal content of the charge. The invention also relates to the method for preparing said composition, including synthesis of pyrophosphates, formation of a suspension of boehmite alumina, magnesium oxide or magnesium hydroxide, together with oxides M2P2O7, spray drying and calcination of the microspheres without generating any loss in the crystalline structure of oxides M2P2O7.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: January 21, 2014
    Assignee: Ecopetrol S.A.
    Inventors: Luis Oswaldo Almanza Rubiano, Luis Javier Hoyos Marin, Cesar Augusto Vergel Hernández
  • Patent number: 8613897
    Abstract: A method for producing a densified fumed metal oxide having an increased bulk density and substantially the same surface area as an undensified fumed metal oxide with the same molecular composition is provided. The fumed metal oxide is wetted with a solvent to form a wetted fumed metal oxide. The wetted fumed metal oxide is dried to form a dried fumed metal oxide. The dried fumed metal oxide is calcined.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: December 24, 2013
    Assignee: UOP LLC
    Inventor: Christopher P. Nicholas
  • Publication number: 20130289288
    Abstract: A process for treating a carrier, or a precursor thereof, to at least partly remove impurities from the carrier, or the precursor thereof, comprising: contacting the carrier, or the precursor thereof, with a treatment solution comprising a salt in a concentration of at most 0.05 molar, wherein the salt comprises a cation and an anion, and wherein the cation is selected from ammonium, phosphonium, organic cations and combinations thereof, and wherein the anion is selected from organic anions, inorganic carboxylates, oxyanions of elements from Groups IIIA through VIIA of the Periodic Table of Elements, and combinations thereof; and separating at least part of the treatment solution from the carrier, or the precursor thereof.
    Type: Application
    Filed: June 28, 2013
    Publication date: October 31, 2013
    Inventors: John Robert LOCKEMEYER, Randall Clayton YEATES
  • Patent number: 8562940
    Abstract: A process for preparing a mesoporous alumina is described, comprising the following steps: a) mixing, in aqueous solution, at least one source of aluminum constituted by an aluminum alkoxide, at least one cationic surfactant and at least one organic solvent selected from methanol and ethanol; b) hydrothermally treating the mixture formed in said step a); c) drying the solid formed in said step b); d) calcining the solid formed in said step c).
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: October 22, 2013
    Assignee: IFP Energies nouvelles
    Inventors: Loic Rouleau, Sébastien Royer, Christine Lancelot, Franck Dumeignil, Edmond Payen, Pascal Blanchard
  • Patent number: 8557214
    Abstract: Preparing porous particles includes forming a gel including a first liquid and an oxygen-containing compound of a metal, semi-metal, metalloid, or semi-conductor, including an oxide, hydroxide, alkoxide, oxohydroxide, oxoalkoxide, oxo salt, or oxo salt hydrate of the metal, semi-metal, metalloid, or semi-conductor; contacting the gel with a combustible liquid to form a combustible gel; and initiating combustion of the combustible gel to form a substance including porous metal, semi-metal, metalloid, or semi-conductor oxide particles. The combustible liquid can include a volatile solvent. The porous particles have open pores with a range of nanoscale pore sizes. The porous particles may be treated further to form, for example, a composite.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: October 15, 2013
    Assignee: Arizona Board of Regents, a body corporate of the State of Arizona
    Inventors: Dong-Kyun Seo, Danielle Ladd, Alex Volosin
  • Patent number: 8524191
    Abstract: A process for preparing aluminum oxide with a low calcium content, in which (1) crude alpha- and/or gamma-aluminum oxide with a total calcium content in the range from 50 to 2000 ppm, based on the crude alpha- and/or gamma-aluminum oxide, is mixed with an aqueous solution or suspension comprising the compounds selected from the group of inorganic acid, organic acid and complexing agent, (2) the mixture from step (1) is admixed with a flocculating aid, (3) in the mixture of step (2), the solids are separated from the liquid, (4) the solids separated are mixed with water in the presence or in the absence of a flocculating aid, (5) in the mixture of step (4), the solids are separated from the liquid, (6) optionally, steps (4) and (5) are repeated once or more than once, (7) optionally, the solids separated optionally after addition of further compounds, are dried.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: September 3, 2013
    Assignee: BASF SE
    Inventors: Marcus Georg Schrems, Anna Katharina Dürr, Günther Huber, Jesus Enrique Zerpa Unda, Katrin Freitag, Christian Eichholz, Franky Ruslim
  • Patent number: 8414854
    Abstract: This invention relates to crystalline boehmitic aluminas the crystallites of which exhibit unusual dimensional differences in the space directions 020 and 120. This invention further relates to a method for preparing such aluminas and the follow-up products obtained therefrom by calcination.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: April 9, 2013
    Assignee: Sasol Germany GmbH
    Inventors: Klaus Noweck, Jürgen Schimanski, Jens Juhl, Frank Michael Bohnen, Reiner Glöckler, Arnold Meyer
  • Patent number: 8357628
    Abstract: The present invention is a process for making an inorganic/organic hybrid totally porous spherical silica particles by self assembly of surfactants that serve as organic templates via pseudomorphic transformation.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: January 22, 2013
    Assignee: Agilent Technologies, Inc.
    Inventors: Ta-Chen Wei, Wu Chen, William E. Barber
  • Publication number: 20130006002
    Abstract: This invention relates to catalyst carriers to be used as supports for metal and metal oxide catalyst components of use in a variety of chemical reactions. More specifically, the invention provides a process of formulating a low surface area alpha alumina carrier that is suitable as a support for silver and the use of such catalyst in chemical reactions, especially the epoxidation of ethylene to ethylene oxide. A precursor for a catalyst support comprises an admixture of an alpha alumina and/or a transition alumina; a binder; and either a solid blowing agent which expands, or propels a gas upon the application of sufficient heat, and optionally contains talc and/or water soluble titanium compound.
    Type: Application
    Filed: September 12, 2012
    Publication date: January 3, 2013
    Applicant: SD LIZENZVERWERTUNGSGESELLSCHAFT MBH & CO. KG
    Inventor: Nabil Rizkalla
  • Patent number: 8282897
    Abstract: A process for the recovery of high purity boehmite with controlled pore size from spent hydroprocessing catalyst includes the step of treating the spent hydroprocessing catalyst composition in order to get recovery of the aluminas after extracting the valuable metals. The process permits easy and resourceful recovery of high quality boehmite from waste catalyst, which can be further used as hydroprocessing catalyst carrier having a pore structure almost identical or better than that used in heavy oil hydroprocessing catalysts. Such catalyst carrier is required to have high pore volume, macro-porosity, high strength and optimum surface area for active metal dispersion. The treating steps include process steps such as decoking, roasting, leaching, dissolving, digestion, precipitation, washing, stripping, and the like. The recovery steps include digestion, hydrothermal treatment, flocculation or precipitation, filtration, drying, calcination and the like.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: October 9, 2012
    Assignee: Kuwait Institute for Scientific Reaearch
    Inventor: Meena Marafi
  • Publication number: 20120237439
    Abstract: A process for preparing a mesoporous alumina is described, comprising the following steps: a) mixing, in aqueous solution, at least one source of aluminium constituted by an aluminium alkoxide, at least one cationic surfactant and at least one organic solvent selected from methanol and ethanol; b) hydrothermally treating the mixture formed in said step a); c) drying the solid formed in said step b); d) calcining the solid formed in said step c).
    Type: Application
    Filed: December 27, 2010
    Publication date: September 20, 2012
    Applicant: IFP Energies nouvelles
    Inventors: Loic ROULEAU, Sébastien Royer, Christine Lancelot, Franck Dumeignil, Edmond Payen, Pascal Blanchard
  • Patent number: 8226760
    Abstract: Compositions for making alpha-alumina supports for, for example, inorganic membranes are described. Methods for controlling the alumina and pore former particle sizes and other process variables are described which facilitate desirable porosity, pore distribution and strength characteristics of the resulting alpha-alumina inorganic membrane supports.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: July 24, 2012
    Assignee: Corning Incorporated
    Inventors: Adam Kent Collier, Wei Liu, Jianguo Wang, Jimmie Lewis Williams
  • Patent number: 8216546
    Abstract: A crystallized solid, referred to by the name IM-14, which has an X-ray diffraction diagram as provided below, is described. Said solid has a chemical composition that is expressed according to the formula GeO2:nY2O3:pR:qF:wH2O, where R represents one or more organic radical(s), Y represents at least one trivalent element, and F is fluorine.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: July 10, 2012
    Assignee: IFP Energies Nouvelles
    Inventors: Yannick Lorgouilloux, Jean Louis Paillaud, Philippe Caullet, Joel Patarin, Nicolas Bats
  • Patent number: 8197791
    Abstract: Aluminum oxide powder in the form of aggregates of primary-particles, which has a BET surface area of from 10 to 90 m2/g and comprises as crystalline phases, in addition to gamma-aluminum oxide and/or theta-aluminum oxide, at least 30% of delta-aluminum oxide. It is prepared by vaporizing aluminum chloride and burning the vapor together with hydrogen and air, the ratio of primary air/secondary air being 0.01 to 2, the exit speed vB of the reaction mixture from the burner being at least 10 m/s, the lambda value being 1 to 4, the gamma value being 1 to 3 and the value of gamma*vB/lambda being greater than or equal to 55. Dispersion comprising the aluminum oxide powder. Coating composition comprising the dispersion.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: June 12, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Kai Schumacher, Martin Moerters, Juergen Flesch, Marcus Von Twistern, Volker Hamm, Matthias Schmitt, Harald Alff, Roland Schilling
  • Patent number: 8173099
    Abstract: An aggregate material includes an aluminous material and a toughening agent in contact with the aluminous material. The aluminous material has a primary aspect ratio of at least about 1.5 and a particle size between about 30 nm and about 1000 nm.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: May 8, 2012
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventor: Doruk O. Yener
  • Patent number: 8163266
    Abstract: ?-Alumina powder having a purity of at least 99.99% by weight, a specific surface area of from 0.1 to 2.0 m2/g, a relative density of from 55 to 90%, and a closed porosity of 4% or less, wherein in a weight-based particle size distribution obtained by the dry sieving test according to JIS K0069 (1992), an amount of particles having a particle size of less than 75 ?m is 5% by weight or less; an amount of particles having a particle size exceeding 2.8 mm is 15% by weight or less; and at least one frequency maximum peak appears in a particle size range of 100 ?m or more and to less than 850 ?m. This ?-alumina powder can be charged in a crucible at a high bulk density, from which sapphire having a few voids can be produced without causing the oxidation of a crucible in a heat melting step.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: April 24, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Norifumi Azuma, Shinji Fujiwara
  • Patent number: 8119707
    Abstract: A composite material includes a polymer matrix and a particulate material dispersed within the polymer matrix. The particulate material includes metal oxide coated alumina hydrate. The particulate material has a 500 psi Compaction Volume Ratio of at least about 4.0 cc/cc. The metal oxide coating may include precipitated silica. The particulate material may have a Hg Cumulative Pore Volume of at least 1.65 cc/g.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: February 21, 2012
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Olivier Guiselin, Nathalie Pluta, Yves Boussant-Roux, Doruk O. Yener
  • Patent number: 8110527
    Abstract: The present invention discloses an alumina support having multiple pore structure, wherein the alumina support has a specific surface area of from 40 to 160 m2/g and a total pore volume of from 0.3 to 1.2 cm3/g; a pore volume of pores having a pore diameter of less than 30 nm comprises 5 to 60% of the total pore volume; a pore volume of pores having a pore diameter of from 30 to 60 nm comprises 20 to 75% of the total pore volume; and a pore volume of pores having a pore diameter of larger than 60 nm comprises 20 to 60% of the total pore volume. The present invention further discloses a catalyst used for selective hydrogenation of a pyrolysis gasoline, comprising: (a) the alumina support according to the invention; and (b) 0.01 to 1.2 wt. % of metal palladium or palladium oxides, based on the weight of the alumina support.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: February 7, 2012
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Zhongneng Liu, Zaiku Xie, Xinghua Jiang, Xiaoling Wu, Minbo Hou, Hongyuan Zong
  • Patent number: 8084387
    Abstract: The present invention relates to a cobalt/phosphorus-alumina catalyst in which cobalt is supported as an active component on a phosphorus-alumina support wherein phosphorus is supported on alumina surface. With a bimodal pore structure of pores of relatively different pore sizes, the catalyst provides superior heat- and matter-transfer performance and excellent catalytic reactivity. Especially, when Fischer-Tropsch (F-T) reaction is performed using the catalyst, deactivation by the water produced during the F-T reaction is inhibited and, at the same time, the dispersion and reducing property of cobalt and other active component are improved. Therefore, the cobalt/phosphorus-alumina catalyst for F-T reaction in accordance with the present invention provides good carbon monoxide conversion and stable selectivity for liquid hydrocarbons.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: December 27, 2011
    Assignees: Korea Research Institute of Chemical Technology, Daelim Industrial Co., Ltd., Korea National Oil Corporation
    Inventors: Ki-won Jun, Jong-Wook Bae, Seung-Moon Kim, Yun-Jo Lee
  • Patent number: 8080231
    Abstract: The present invention provides nanoporous ?-alumina powders comprising powder comprising interconnected ?-alumina primary particles having an average particle size of less than about 100 nm and an interpenetrated array of pores or voids. The invention also provides nanosized ?-alumina powders comprising ?-alumina particles having an average particle size of less than about 100 nm and slurries, particularly aqueous slurries, which comprise nanosized ?-alumina powders of the invention. The invention further provides methods of manufacturing nanoporous ?-alumina powders and nanosized ?-alumina powders of the invention and methods of polishing using slurries of the invention.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: December 20, 2011
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventor: Yuhu Wang
  • Patent number: 8043599
    Abstract: A method for fabricating a high specific surface area mesoporous alumina is disclosed, which includes the following steps: (a) providing a water solution containing an aluminum salt and a fluoro-surfactant; (b) adding concentrated hydrochloric acid to adjust the PH value of the solution to about 6.0 to 8.0; (c) aging the solution at 70° C. to 110° C. for 12 to 20 hours; (d) washing the precipitate with water; (e) washing the precipitate with an organic solvent; (f) drying the precipitate; and (g) sintering the precipitate in a furnace of 500° C. to 1000° C.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: October 25, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Tz-Bang Du, Yung-Chan Lin, Bor-Wen Chen, SHyue-Ming Jang
  • Patent number: 8012906
    Abstract: A high-temperature catalytic material and a method for producing the same are disclosed. The high-temperature catalytic material is obtained by subjecting a mixture of gibbsite and boehmite in a desired weight ratio to a single dry thermal treatment in the air, without alkaline or hydrothermal treatment, so as to obtain multiphase alumina powder as the high-temperature catalytic material. The multiphase alumina powder applied in the high-temperature catalytic material can raise the temperature of phase transformation, maintain its high specific surface area when suffering high temperatures for a long time, prolongs its lifetime, and reduces the usage of noble metals, resulting in great reduction of cost.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: September 6, 2011
    Assignee: National Cheng Kung University
    Inventors: Fu-Su Yen, Tan-Gin Lin
  • Publication number: 20110092363
    Abstract: Preparing porous particles includes forming a gel including a first liquid and an oxygen-containing compound of a metal, semi-metal, metalloid, or semi-conductor, including an oxide, hydroxide, alkoxide, oxohydroxide, oxoalkoxide, oxo salt, or oxo salt hydrate of the metal, semi-metal, metalloid, or semi-conductor; contacting the gel with a combustible liquid to form a combustible gel; and initiating combustion of the combustible gel to form a substance including porous metal, semi-metal, metalloid, or semi-conductor oxide particles. The combustible liquid can include a volatile solvent. The porous particles have open pores with a range of nanoscale pore sizes. The porous particles may be treated further to form, for example, a composite.
    Type: Application
    Filed: April 21, 2009
    Publication date: April 21, 2011
    Inventors: Dong-Kyun Seo, Danielle Ladd, Alex Volosin
  • Publication number: 20110059008
    Abstract: A regenerating method for activated alumina used in regenerating working fluid of hydrogen peroxide comprises the following steps: adding deactivated alumina discharged from a regenerating bed for working fluid of hydrogen peroxide with fire resistant alumina into a reactor through the top of the reactor and settling by gravity, oxidizing atmosphere entering into the reactor from the bottom of the reactor and running upwardly, discharging regenerated alumina and fire resistant alumina through the discharging device on the bottom of the reactor, discharging exit gas through the discharge port on the top of the reactor, the reaction temperature ranging from 360-800° C., the residence time of solid feed in the reactor ranging from 3-15 h. The method is economic, environment-protective, safe, and low-costly. The regenerated alumina will not poison palladium catalyst.
    Type: Application
    Filed: January 28, 2008
    Publication date: March 10, 2011
    Applicant: SHANGHAI HUAMING HI-TECH (GROUP) CO., LTD.
    Inventors: Fuqing Li, Xinsheng Ma, Gang Chen, Qiufang Wu, Guojian Chen, Yubao Gan, Jinghui Yang
  • Publication number: 20100310448
    Abstract: A regenerating method for activated alumina used in regenerating working fluid of hydrogen peroxide comprises the following steps: adding deactivated alumina discharged from a regenerating bed for working fluid of hydrogen peroxide into a reactor through the top of the reactor and settling by gravity, oxidizing atmosphere entering into the reactor from the bottom of the reactor and running upwardly, then discharging exit gas and regenerated alumina through the discharge port on the top and discharging device on the bottom of the reactor respectively. The method is economic, environment-protective, safe, low-costly. The regenerated alumina will not poison palladium catalyst.
    Type: Application
    Filed: January 28, 2008
    Publication date: December 9, 2010
    Applicant: SHANGHAI HUAMING HI-TECH (GROUP) CO., LTD.
    Inventors: Qiufang Wu, Guojian Chen, Fuqing Li, Xinsheng Ma, Gang Chen, Jinghui Yang, Zhiping Zhang
  • Publication number: 20100276339
    Abstract: A method of hydroprocessing a heavy hydrocarbon feedstock using a hydroprocessing catalyst having specific properties making it effective in the hydroconversion of at least a portion of the heavy hydrocarbon feedstock to lighter hydrocarbons. The hydroprocessing catalyst comprises a Group VIB metal component (e.g., Cr, Mo, and W), a Group VIII metal component (e.g., Ni and Co) and, optionally, a potassium metal component that are supported on a support material comprising alumina. The alumina has novel physical properties that, in combination with the catalytic components, provide for the hydroprocessing catalyst. The hydroprocessing catalyst is particularly effective in the conversion of the heavy hydrocarbon feedstock. The alumina is characterized as having a high pore volume and a high surface area with a large proportion of the pore volume being present in the pores within a narrow pore diameter distribution about a narrowly defined range of median pore diameters.
    Type: Application
    Filed: July 14, 2010
    Publication date: November 4, 2010
    Inventors: Josiane Marie-Rose GINESTRA, Russell Craig ACKERMAN, Christian Gabriel MICHEL
  • Patent number: 7799385
    Abstract: The subject of the present invention is a method of preparation of a monolithic hydrated alumina by the oxidation of aluminium or an aluminium alloy in the presence of a mercury amalgam that contains at least one noble metal, such as silver. This hydrated alumina serves inter alia as base product in methods of preparation of amorphous or crystalline aluminas, or of aluminates, which themselves serve as base products for methods of preparation of composite materials based on oxides, on metals, on carbon products and/or on polymers. Application of the said products obtained by the said methods in many fields, such as catalysis, thermal and acoustic insulation, magnetism, waste storage, and preparation of radioelement transmutation targets.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: September 21, 2010
    Assignees: Commissariat a l'Energie Atomique, Centre National de la Recherche
    Inventors: Michel Beauvy, Jean-Louis Vignes, Daniel Michel, Léo Mazerolles, Claude Frappart, Thomas Di Costanzo
  • Patent number: 7790652
    Abstract: A method of hydroprocessing a heavy hydrocarbon feedstock using a hydroprocessing catalyst having specific properties making it effective in the hydroconversion of at least a portion of the heavy hydrocarbon feedstock to lighter hydrocarbons. The hydroprocessing catalyst comprises a Group VIB metal component (e.g., Cr, Mo, and W), a Group VIII metal component (e.g., Ni and Co) and, optionally, a potassium metal component that are supported on a support material comprising alumina. The alumina has novel physical properties that, in combination with the catalytic components, provide for the hydroprocessing catalyst. The hydroprocessing catalyst is particularly effective in the conversion of the heavy hydrocarbon feedstock. The alumina is characterized as having a high pore volume and a high surface area with a large proportion of the pore volume being present in the pores within a narrow pore diameter distribution about a narrowly defined range of median pore diameters.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: September 7, 2010
    Assignee: Shell Oil Company
    Inventors: Russell Craig Ackerman, Josiane Marie-Rose Ginestra, Christian Gabriel Michel