Treating Preformed Sphere Only Patents (Class 502/10)
  • Patent number: 10758889
    Abstract: A medical macromolecular microsphere adsorbent for a blood perfusion apparatus and a preparation method thereof are provided. The polystyrene-divinylbenzene microspheres are graded by different pore sizes and specific surface areas, medically purified, and grafted by a bioactivity-controlled grafting technology. In the microsphere adsorbent, the volume ratio of microspheres with pore sizes of 1-10 ?m, 10-100 ?m and 100 ?m is 1:(1-10):(1-20), the content of residual monomers in the microsphere has O.D190-400 nm?0.03. The microsphere adsorbent not only can adsorb harmful micromolecules in blood but also can effectively adsorb harmful medium-molecules and macromolecules in blood, thereby meeting clinical application demands.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: September 1, 2020
    Inventors: Li Ren, Yingjun Wang, Sa Liu, Lin Wang, Jian Zheng
  • Patent number: 10403906
    Abstract: A fuel cell electrode catalyst includes a carbon support having pores, and catalyst particles supported on the carbon support and containing platinum or a platinum alloy. The pores of the fuel cell electrode catalyst have a mode pore size within a range from 2 nm to 5 nm. In the pores of the fuel cell electrode catalyst, a pore volume of pores having pore sizes within the range from 2 nm to 5 nm is 0.4 cm3/g or larger. The catalyst particles have a crystallite size within the range from 2 nm to 5 nm at a platinum (220) plane. A density of the supported catalyst particles is within a range from 10% by mass to 50% by mass with respect to a total mass of the fuel cell electrode catalyst.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: September 3, 2019
    Assignees: Toyota Jidosha Kabushiki Kaisha, NIPPON STEEL Chemical & Material Co., Ltd.
    Inventors: Yusuke Itoh, Toru Yamamoto
  • Patent number: 10355286
    Abstract: A fuel cell electrode catalyst includes a carbon support having pores, and catalyst particles supported on the carbon support and containing platinum or a platinum alloy. The pores of the fuel cell electrode catalyst have a mode pore size within a range from 2 nm to 5 nm. In the pores of the fuel cell electrode catalyst, a pore volume of pores having pore sizes within the range from 2 nm to 5 nm is 0.4 cm3/g or larger. The catalyst particles have a crystallite size within the range from 2 nm to 5 nm at a platinum (220) plane. A density of the supported catalyst particles is within a range from 10% by mass to 50% by mass with respect to a total mass of the fuel cell electrode catalyst.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: July 16, 2019
    Assignees: Toyota Jidosha Kabushiki Kaisha, NIPPON STEEL Chemical & Material Co., Ltd.
    Inventors: Yusuke Itoh, Toru Yamamoto
  • Patent number: 9675967
    Abstract: A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: June 13, 2017
    Assignee: BASF CORPORATION
    Inventors: David Matheson Stockwell, John M. Macaoay
  • Patent number: 9474827
    Abstract: The invention relates to a wound dressing which is particularly suitable for therapeutically dressing wounds. Said wound dressing comprises at least one wound covering layer and at least one sorbent based on an activated carbon which has a biocidal and/or biostatic, in particular antimicrobial effect and/or finish.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: October 25, 2016
    Assignee: Blücher GmbH
    Inventors: Hasso von Blücher, Raik Schönfeld, Frank Pallaske
  • Patent number: 9353198
    Abstract: The purpose of the present invention is to produce an alpha-olefin polymer having excellent production stability utilizing a long-lasting high catalytic activity. Provided is a method for producing an alpha-olefin polymer using a catalyst comprising: (A) a solid catalyst component comprising, as essential components, magnesium, titanium, a halogen and an electron donor compound; (B) an organoaluminum compound; and (C) an electron donor compound, the method comprising: (1) pre-polymerizing an alpha-olefin in the presence of the components (A) and (B) to produce a pre-polymerized catalyst; (2) bringing the resultant pre-polymerized catalyst into contact with a contact product that is produced by contacting the components (B) and (C) with each other in advance; and (3) adding the pre-polymerized catalyst that has been contacted with the contact product to a polymerization reaction vessel in which an alpha-olefin is introduced to polymerize the alpha-olefin.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: May 31, 2016
    Assignee: SUNALLOMER LTD.
    Inventors: Akihiro Kamimura, Akihiro Otsubo, Shintaro Takemiya
  • Patent number: 9260686
    Abstract: A bioreactor system includes a growth chamber having an inlet, an outlet, and defining a cavity, a media reservoir is in fluid communication with the inlet, and a pump configured to perfuse a media from the reservoir into the inlet and through the growth chamber. A plurality of discrete scaffold members is packed within the growth cavity. Spaces between adjacent scaffold members define pores. The media is movable around the scaffold members and through the pores via the pump.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: February 16, 2016
    Assignee: University of Maryland, College Park
    Inventors: John Patrick Fisher, Andrew Yeatts, Elyse Geibel
  • Patent number: 9149792
    Abstract: The present invention provides a process for preparing ball-type desulfurizer with high sulfur capacity, comprising the following steps: placing initial balls in a rolling equipment; wetting the surface of the initial balls with an aqueous solution of an organic binder; then alternately adding non-crystalline iron oxide hydroxide and the aqueous solution of the organic binder to gradually form small balls of non-crystalline iron oxide hydroxide with high sulfur capacity and different diameters; and adjusting the shape of the small balls and then roasting or naturally drying the small balls. In the desulfurizer prepared by this method, the initial balls constitutes 0.98 wt %-9.03 wt % of the desulfurizer, the non-crystalline iron oxide hydroxide constitutes 90.29 wt %-98.62 wt % of the desulfurizer, and the organic binder constitutes 0.58 wt %-0.89 wt % of the desulfurizer.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: October 6, 2015
    Assignee: BEIJING SJ ENVIRONMENTAL PROTECTION AND NEW MATERIAL CO., LTD.
    Inventors: Tong Zhou, Gang Zhao, Fujiang Hong, Wenjun Mao, Qunyang Gao, Bingyi Li
  • Publication number: 20140302981
    Abstract: The invention relates to an activated carbon, in particular an activated carbon with reactive and/or catalytic activity, said activated carbon being in the form of discrete activated carbon particles, preferably in a spherical and/or grain form. The activated carbon is provided with and/or comprises at least one metal component which has at least one metal-containing ionic liquid (IL) containing, in particular metal ions, preferably based on a metal compound. The invention also related to methods for producing said activated carbon, to the uses thereof and to materials provided herewith.
    Type: Application
    Filed: May 25, 2012
    Publication date: October 9, 2014
    Applicant: Blucher GmbH
    Inventors: Bertram Bohringer, Ilsebill Eckle, Peter Wasserscheid, Daniel Roth
  • Publication number: 20140135211
    Abstract: The present invention provides a process for preparing ball-type desulfurizer with high sulfur capacity, comprising the following steps: placing initial balls in a rolling equipment; wetting the surface of the initial balls with an aqueous solution of an organic binder; then alternately adding non-crystalline iron oxide hydroxide and the aqueous solution of the organic binder to gradually form small balls of non-crystalline iron oxide hydroxide with high sulfur capacity and different diameters; and adjusting the shape of the small balls and then roasting or naturally drying the small balls. In the desulfurizer prepared by this method, the initial balls constitutes 0.98 wt %-9.03 wt % of the desulfurizer, the non-crystalline iron oxide hydroxide constitutes 90.29 wt %-98.62 wt % of the desulfurizer, and the organic binder constitutes 0.58 wt %-0.89 wt % of the desulfurizer.
    Type: Application
    Filed: May 21, 2012
    Publication date: May 15, 2014
    Applicant: BEIJING SJ ENVIRONMENTAL PROTECTION AND NEW MATERIAL CO., LTD.
    Inventors: Tong Zhou, Gang Zhao, Fujiang Hong, Wenjun Mao, Qunyang Gao, Bingyi Li
  • Patent number: 8716417
    Abstract: An olefin polymerization catalyst and preparation method and use thereof are provided. The components of the catalyst comprise an active magnesium halide, a titanium compound containing at least one Ti-halide bond loaded on the active magnesium halide, and an internal electron donor selected from one or more silicon esters compounds having formula (I). The method for preparing the catalyst components is that: adding spherical magnesium chloride alcoholate particles and the electron donor into the solution of titanium compound in sequence, and processing with the titanium compound for one or more times to obtain the catalyst. The catalyst system used for the olefin polymerization comprises the catalyst components, a cocatalyst and an external electron donor. The catalyst has high activity for the propylene polymerization, and the activity is 4399 gPP/gTi·h(50° C., 1 h, slurry polymerization at atmospheric pressure), and the isotacticity of the polymer is 98%.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: May 6, 2014
    Assignee: PetroChina Company Limited
    Inventors: Jianjun Yi, Chunming Cui, Huashu Li, Zhifei Li, Baozuo Yin, Liang Cui, Jianying Zhang, Liang Wang
  • Publication number: 20140065060
    Abstract: The present invention relates to a compound of the general formula (I) wherein R1 represents a group selected from the list consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, linear or branched, saturated or mono- or polyunsaturated aliphatic carbon chain containing from two to ten carbon atoms, phenyl, and phenylacetylen, and wherein R2 and R3 independently of each other represent a group selected from the list consisting of Cl, I, methyl, phenyl, or phenylacetylene.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 6, 2014
    Applicants: Karlsruher Institut fur Technologie (KIT), BASF SE
    Inventors: Wolfgang Gerlinger, Bernd Sachweh, Stefan Bräse, Mirja Enders, Thierry Müller, Gerhard Kasper, Martin Seipenbusch, Kun Gao, Matthias Faust, Linus Reichenbach
  • Publication number: 20140038809
    Abstract: The present invention relates to a supported catalyst for the polymerization of olefins. More specifically, the present invention provides a catalyst comprising a spherical alumina support modified by the addition of a magnesium compound containing a magnesium alkoxide and the product of the reaction of it with a titanium halide. The present invention also relates to the method for preparing said supported catalyst.
    Type: Application
    Filed: December 22, 2011
    Publication date: February 6, 2014
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Luciana Bortolin Ramis, Fernando Reis Da Cunha, Rafael Silva Dias, Natalia Dantas Do Vale Batista
  • Patent number: 8637422
    Abstract: A method for supporting a catalytic metal on the surface of a carrier by bringing an aqueous catalytic metal salt solution into contact a porous carrier. The method includes the steps of: impregnating the carrier with a liquid hydrophobic organic compound before bringing the aqueous catalytic metal salt solution into contact with the carrier, and drying the impregnated carrier to volatilize the hydrophobic organic compound on the surface of the carrier, followed by bringing the carrier into contact with the aqueous catalytic metal salt solution; and then bringing a reducing agent into contact with the catalytic metal salt on the surface of the carrier to reduce the catalytic metal salt to undergo insolubilization treatment. The catalytic component is supported in a region from the surface of the carrier to a depth of 50 ?m or more and 500 ?m or less.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: January 28, 2014
    Assignee: Tanaka Kikinzoku Kogyo K.K.
    Inventors: Hitoshi Kubo, Yuusuke Ohshima, Tomoko Ishikawa, Junichi Taniuchi
  • Patent number: 8618017
    Abstract: A catalyst for hydrotreating and/or hydroconverting heavy metal-containing hydrocarbon feeds, comprises a support in the form of mainly irregular and non-spherical alumina-based agglomerates the specific shape. The catalyst is prepared by a specific order of steps: crushing, calcining, acidic autoclaving, drying, further calcining and impregnation with catalytic metals.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: December 31, 2013
    Assignee: IFP Energies Nouvelles
    Inventors: Stephane Kressmann, Magalie Roy-Auberger, Jean Luc Le Loarer, Denis Guillaume, Jean Francois Chapat
  • Publication number: 20130331529
    Abstract: A method for adjusting the average particle size of a spherical catalyst support, in particular a spherical catalyst support comprising a magnesium dihalide-ethanol-adduct, a spherical catalyst support obtained by the method, a solid catalyst composition comprising the spherical catalyst support, and the use of the solid catalyst composition for the polymerization of an olefins.
    Type: Application
    Filed: May 24, 2013
    Publication date: December 12, 2013
    Applicant: Clariant Produkte (Deutschland) GmbH
    Inventors: Meinolf KERSTING, Christian GUECKEL, C. P. CHENG, Liu YANXIA
  • Publication number: 20130225882
    Abstract: An alpha-alumina support for a hydrogenation catalyst useful in hydrogenating fluoroolefins is provided.
    Type: Application
    Filed: April 4, 2013
    Publication date: August 29, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventor: HONEYWELL INTERNATIONAL INC.
  • Patent number: 8518447
    Abstract: The methods for treatment using an adsorbent having a high adsorbability, and capable of adsorbing a large amount of toxins during a retention period in an intestine, and of remarkably increasing an adsorption amount of compounds having a large molecular weight.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: August 27, 2013
    Assignee: Kureha Corporation
    Inventors: Naohiro Sonobe, Takashi Wakahoi, Mieko Kuwahara
  • Publication number: 20130158325
    Abstract: This invention relates to a method of preparing a mixed manganese ferrite coated catalyst, and a method of preparing 1,3-butadiene using the same, and more particularly, to a method of preparing a catalyst by coating a support with mixed manganese ferrite obtained by co-precipitation at 10˜40° C. using a binder and to a method of preparing 1,3-butadiene using oxidative dehydrogenation of a crude C4 mixture containing n-butene and n-butane in the presence of the prepared catalyst. This mixed manganese ferrite coated catalyst has a simple synthetic process, and facilitates control of the generation of heat upon oxidative dehydrogenation and is very highly active in the dehydrogenation of n-butene.
    Type: Application
    Filed: May 26, 2011
    Publication date: June 20, 2013
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Yong Tak Kwon, Tae Jin Kim, Young Min Chung, Ok Youn Kim, Seung Hoon Oh
  • Patent number: 8440228
    Abstract: An adsorbent for an oral administration, comprising a spherical activated carbon wherein an average particle diameter is 50 to 200 ?m, a specific surface area determined by a BET method is 700 m2/g or more, and a bulk density is less than 0.54 g/mL is disclosed. The adsorbent for an oral administration has a high adsorbability, and is capable of adsorbing a large amount of toxins during a retention period in an intestine, and of remarkably increasing an adsorption amount of compounds having a large molecular weight.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: May 14, 2013
    Assignee: Kureha Corporation
    Inventors: Naohiro Sonobe, Takashi Wakahoi, Mieko Kuwahara
  • Publication number: 20130072647
    Abstract: An olefin polymerization catalyst and preparation method and use thereof are provided. The components of the catalyst comprise an active magnesium halide, a titanium compound containing at least one Ti-halide bond loaded on the active magnesium halide, and an internal electron donor selected from one or more silicon esters compounds having formula (I). The method for preparing the catalyst components is that: adding spherical magnesium chloride alcoholate particles and the electron donor into the solution of titanium compound in sequence, and processing with the titanium compound for one or more times to obtain the catalyst. The catalyst system used for the olefin polymerization comprises the catalyst components, a cocatalyst and an external electron donor. The catalyst has high activity for the propylene polymerization, and the activity is 4399 gPP/gTi·h(50° C., 1 h, slurry polymerization at atmospheric pressure), and the isotacticity of the polymer is 98%.
    Type: Application
    Filed: June 3, 2011
    Publication date: March 21, 2013
    Applicant: PetroChina Company Limited
    Inventors: Jianjun Yi, Chunming Cui, Huashu Li, Zhifei Li, Baozuo Yin, Liang Cui, Jianying Zhang, Liang Wang
  • Publication number: 20130072374
    Abstract: A composite oxygen transport membrane having a dense layer, a porous support layer and an intermediate porous layer located between the dense layer and the porous support layer. Both the dense layer and the intermediate porous layer are formed from an ionic conductive material to conduct oxygen ions and an electrically conductive material to conduct electrons. The porous support layer has a high permeability, high porosity, and a microstructure exhibiting substantially uniform pore size distribution as a result of using PMMA pore forming materials or a bi-modal particle size distribution of the porous support layer materials. Catalyst particles selected to promote oxidation of a combustible substance are located in the intermediate porous layer and in the porous support adjacent to the intermediate porous layer. The catalyst particles can be formed by wicking a solution of catalyst precursors through the porous support toward the intermediate porous layer.
    Type: Application
    Filed: November 8, 2012
    Publication date: March 21, 2013
    Inventors: Jonathan A. Lane, Jamie R. Wilson, Gervase Maxwell Christie
  • Publication number: 20130053234
    Abstract: A method for preparing a sorbent composition includes the steps of: (i) applying, from a solution or a slurry, a layer of a copper compound on the surface of a support material, and (ii) drying the coated support material, wherein the thickness of the copper compound layer on the dried support is in the range 1-200 ?m. The precursor may be converted to a sorbent suitable for removing heavy metals from liquids or gases by applying one or more sulphur compounds to sulphide the copper compound and form CuS.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 28, 2013
    Applicant: JOHNSON MATTHEY PLC
    Inventors: Andrew Fish, Lucy Jane Challis, Matthew John Cousins, Mark Robert Feaviour, Alison Mary Wagland, Stephen David Pollington, Edmund Hugh Stitt
  • Publication number: 20120316055
    Abstract: A method for supporting a catalytic metal on the surface of a carrier by bringing an aqueous catalytic metal salt solution into contact a porous carrier. The method includes the steps of: impregnating the carrier with a liquid hydrophobic organic compound before bringing the aqueous catalytic metal salt solution into contact with the carrier, and drying the impregnated carrier to volatilize the hydrophobic organic compound on the surface of the carrier, followed by bringing the carrier into contact with the aqueous catalytic metal salt solution; and then bringing a reducing agent into contact with the catalytic metal salt on the surface of the carrier to reduce the catalytic metal salt to undergo insolubilization treatment. The catalytic component is supported in a region from the surface of the carrier to a depth of 50 ?m or more and 500 ?m or less.
    Type: Application
    Filed: March 29, 2011
    Publication date: December 13, 2012
    Inventors: Hitoshi Kubo, Yuusuke Ohshima, Tomoko Ishikawa, Junichi Taniuchi
  • Publication number: 20120238440
    Abstract: This invention provides novel fuel cell electrodes and catalysts comprising a series of catalytically active thin-film metal alloys with low platinum concentration supported on nanostructured materials (nanoparticles). Processing of the electrodes and catalysts can include electrodeposition methods, and high-pressure coating techniques. In certain embodiments, an integrated gas-diffusion/electrode/catalyst layer can be prepared by processing catalyst thin films and nanoparticles into gas-diffusion media such as Toray or SGL carbon fiber papers. The catalysts can be placed in contact with an electrolyte membrane for PEM fuel cell applications.
    Type: Application
    Filed: May 30, 2012
    Publication date: September 20, 2012
    Applicant: Intematix Corporation
    Inventors: Tao Gu, Thomas R. Omstead, Ning Wang, Yi Dong, Yi-Qun Li
  • Patent number: 8137760
    Abstract: Disclosed are a nanocrater catalyst in metal nanoparticles with a nanocrater form of hole structure in center of the catalyst which is useful for manufacturing nano-sized materials and/or articles with desired structure and characteristics, a preparation method thereof including a plasma etching and chemical etching process (“PTCE process”), and nano-sized materials and/or articles manufactured by using the nanocrater catalyst in metal nanoparticles.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: March 20, 2012
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jeung-Ku Kang, Augustine Saji, Jung-Woo Lee, Weon-Ho Shin, Kyu-Sung Han, Jung-Hoon Choi
  • Publication number: 20120016170
    Abstract: A process is described for preparing a spherical material comprising a porous core coated with a continuous and homogeneous porous layer, the degree of attrition of said material being less than 20%. Said preparation process comprises a) bringing a bed of spherical particles constituting the core of said material into contact with a suspension containing an inorganic binder in order to form a solid having a pre-layer around said core; b) bringing the solid derived from step a) into contact, in a stream of hot air, with a powder constituted by spherical particles of an inorganic oxide and a suspension containing an inorganic binder and an organic binder in order to form a solid the core of which is coated with at least one continuous and homogeneous porous layer, the ratio of the (mass of anhydrous inorganic binder/volume of powder particles) being in the range 0.05 to 1 g.mL?1; c) drying the solid derived from said step b); and d) calcining the solid derived from said step c).
    Type: Application
    Filed: August 19, 2009
    Publication date: January 19, 2012
    Applicant: IFP Energies nouvelles
    Inventors: Samy Ould-Chikh, Antoine Fecant, Loic Rouleau, Lars Fischer, Mehrdji Hemati
  • Patent number: 7998247
    Abstract: A gas separation membrane and a method of manufacturing such gas separation membrane that comprises a porous substrate treated with a layer of metal-coated inorganic oxide particles and with the layer of such metal-coated inorganic oxide particles being coated with an overlayer of a gas-selective material.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: August 16, 2011
    Assignee: Shell Oil Company
    Inventors: John Charles Saukaitis, Alan Anthony Del Paggio
  • Patent number: 7994089
    Abstract: A method of producing de-alloyed nanoparticles. In an embodiment, the method comprises admixing metal precursors, freeze-drying, annealing, and de-alloying the nanoparticles in situ. Further, in an embodiment de-alloyed nanoparticle formed by the method, wherein the nanoparticle further comprises a core-shell arrangement. The nanoparticle is suitable for electrocatalytic processes and devices.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: August 9, 2011
    Assignee: University of Houston System
    Inventors: Peter Strasser, Shirlaine Koh, Prasanna Mani, Srivastava Ratndeep
  • Patent number: 7744675
    Abstract: A gas separation membrane and a method of manufacturing such gas separation membrane that comprises a porous substrate treated with a layer of metal-coated inorganic oxide particles and with the layer of such metal-coated inorganic oxide particles being coated with an overlayer of a gas-selective material.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: June 29, 2010
    Assignee: Shell Oil Company
    Inventors: John Charles Saukaitis, Alan Anthony Del Paggio
  • Patent number: 7687663
    Abstract: This invention generally relates to processes for recovering solubilized noble metals from aqueous process streams, in particular, aqueous process streams generated in the preparation of an N-(phosphonomethyl)glycine product, for example, by noble metal-catalyzed oxidation of an N-(phosphonomethyl)iminodiacetic acid substrate. The process includes contacting the aqueous process stream with a noble metal adsorption media such as an ion exchange resin to remove solubilized noble metal from the process stream.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: March 30, 2010
    Assignee: Monsanto Technology LLC
    Inventors: Mark D. Scaia, David R. Eaton, Roger J. Hoekstra, Eric A. Haupfear
  • Publication number: 20040038802
    Abstract: Disclosure is made of a specific process for producing activated carbon in spherical form, starting with organic polymer spherules based on styrene and divinylbenzene, wherein said polymer spherules contain chemical groups leading to the formation of free radicals and thus to cross-linkages by their thermal decomposition, in particular sulfonic acid groups. Furthermore, various application purposes for the thus-produced activated carbon spherules are named.
    Type: Application
    Filed: September 17, 2002
    Publication date: February 26, 2004
    Applicant: Hasso von Blucher
    Inventors: Hasso von Blucher, Ernest De Ruiter
  • Publication number: 20030092560
    Abstract: Disclosure is made of a specific process for producing activated carbon in spherical form, starting with organic polymer spherules based on styrene and divinylbenzene, wherein said polymer spherules contain chemical groups leading to the formation of free radicals and thus to cross-linkages by their thermal decomposition, in particular sulfonic acid groups. Furthermore, various application purposes for the thus-produced activated carbon spherules are named.
    Type: Application
    Filed: October 1, 2002
    Publication date: May 15, 2003
    Inventors: Hasso Von Blucher, Ernest De Ruiter
  • Publication number: 20020198098
    Abstract: An exhaust gas purifying catalyst for exhaust gas discharged from an automotive internal combustion engine. The catalyst comprises a substrate over which a hydrocarbons adsorbing material layer is formed as a lower layer to absorb hydrocarbons contained in exhaust gas. The hydrocarbons adsorbing material layer contains zeolite and colloidal silica which has undergone firing. The colloidal silica is in a chain-like form and/or a spherical form before and after the firing. Additionally, a catalyst component layer is formed as an upper layer over the hydrocarbons adsorbing material layer. The catalyst component layer contains a catalyst metal.
    Type: Application
    Filed: November 21, 2001
    Publication date: December 26, 2002
    Inventors: Shinji Yamamoto, Masahiro Takaya
  • Publication number: 20020111262
    Abstract: A method for producing small spherical particles that are especially useful as catalysts and catalyst supports employed in chemical processes is disclosed. According to some embodiments, the method includes impregnating a porous support with a metal or metal oxide and dissolving the support to release spherical particles. In certain embodiments the support that is employed in the method comprises a number of spherical voids which determine the size of the spherical particles, and preferably have micrometer range diameters. One embodiment of an attrition resistant Fischer-Tropsch catalyst comprises a plurality of micrometer size spherical metal and/or metal oxide particles that are prepared according to the above-described method.
    Type: Application
    Filed: September 14, 2001
    Publication date: August 15, 2002
    Inventor: Joe D. Allison
  • Publication number: 20020062039
    Abstract: A catalytically active material useful to prepare vinyl acetate monomer from ethylene, acetic acid, and an oxygen-containing gas under fluid bed conditions comprises a porous microspheroidal support containing catalytically active palladium crystallites finely dispersed within the support. This catalyst material does not require incorporation of gold to maintain activity and selectivity. A process to produce a vinyl acetate fluid bed catalyst in which catalytically active small palladium crystallites are finely dispersed within the support comprises dispersing selected metal species within the support which have an affinity to palladium to form very fine crystallites of palladium. The affinity metal species may be dispersed by impregnation onto a preformed microspheroidal support or may be intimately incorporated within the support before impregnation with a soluble palladium species.
    Type: Application
    Filed: December 4, 2001
    Publication date: May 23, 2002
    Inventors: George Frederick Salem, Michael James Baker
  • Patent number: 6376404
    Abstract: The invention relates to the production of shaped high-performance adsorbents by steam activation in a rotary tunnel kiln operating in batches, in which spherically pre-formed materials are carefully pre-dried in a rotary tunnel dryer with 4-fold product turnover per kiln rotation and with a space/time ratio of from 1 to 2.5 m3/h using hot gas, then carbonised in an indirectly heated rotary tunnel kiln with 6-fold product turnover per kiln rotation and with a space/time ratio of from 5 to 10 m3/h in an inert-gas flow, and the carbonised semi-finished articles are activated in batches in an indirectly heated rotary tunnel kiln with 8-fold product turnover per kiln rotation and with a space/time ratio of from 1 to 5 m3/h with the addition of steam in an inert-gas flow. High-quality shaped high-performance adsorbents are obtained which are versatile and especially suitable for use in air separation, adsorptive cooling and as adsorbent components in textiles and synthetic fabrics.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: April 23, 2002
    Assignee: CarboTex, GmbH
    Inventors: Jann-Micheal Giebelhausen, Hubertus Spieker
  • Patent number: 6316378
    Abstract: The invention relates to a process for the production of shaped activated carbon by steam activation in an continuously operating rotary tunnel kiln, by continuously drying spherically preformed raw materials in a rotary tunnel dryer with 6-fold product turnover per kiln rotation, with a product temperature of from 250 to 300° C. in the 50 to 80% kiln length range and a residence time of from 30 to 6O minutes by means of a hot gas in countercurrent, then, in an indirectly heated rotary tunnel kiln, which is subdivided into a carbonising zone and activating zone, continuously carbonising the material with 8-fold product turnover per kiln rotation and with a product temperature profile in the carbonising zone of from 850 to 900° C. and a residence time of from 120 to 180 minutes, and activating the material with a product temperature profile in the activating zone of from 910 to 920° C. and a residence time of from 480 to 720 minutes with the addition of steam in an inert-gas flow.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: November 13, 2001
    Assignee: CarboTex, GmbH
    Inventors: Jann-Michael Giebelhausen, Hubertus Spieker
  • Patent number: 6184177
    Abstract: A method of processing spent ion-exchange resins contaminated with suspended particles, inorganic residues and/or organic foreign matter so as to render the resin ineffective for continued use, by which method this waste material can be processed to produce useful activated carbon particles instead of simply being dumped in a landfill. In accordance with the invention, granular spent organic ion-exchange resin having an ash content of from 5 to 30% is first dried, then carbonized under a substantially inert atmosphere at a temperature of 300 to 900° C., the inert atmosphere containing 0.2 to 4 volume percent oxygen up to 400° C., and finally activated at a temperature of at least 700° C. under a substantially inert atmosphere containing 3 to 50 volume percent steam.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: February 6, 2001
    Assignee: MHB Filtration GmbH and Co. KG
    Inventors: Hasso von Blücher, Ernest de Ruiter
  • Patent number: 6150300
    Abstract: A process to produce a sorbent is provided. This process comprises: mixing a composition that comprises silica, a composition that comprises metal oxide, and a composition that comprises zinc oxide, to form a first mixture; and sphering said first mixture to form particles having a diameter from about 10 micrometers to about 1000 micrometers.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: November 21, 2000
    Assignee: Phillips Petroleum Company
    Inventors: Gyanesh P. Khare, Donald R. Engelbert
  • Patent number: 5976478
    Abstract: Internal porosity is created in dense SiO.sub.2 particles by heating a mixture of the particles with B.sub.2 O.sub.3 at a temperature above about 450.degree. C. Resulting SiO.sub.2 particles have altered morphology, internal porosity, and small to negative volume changes when heated.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: November 2, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Donald Keith Swanson, Salvatore Anthony Bruno
  • Patent number: 5879647
    Abstract: An improvement is proposed in the so-called urea method for the preparation of fine particles of yttrium oxide, according to which, while an aqueous reaction mixture containing a water-soluble yttrium salt, e.g., nitrate, and urea dissolved therein in specified concentrations is heated at 90.degree. to 100.degree. C. to effect precipitation of yttrium carbonate hydroxide particles followed by calcination of the carbonate hydroxide in air into yttrium oxide, the aqueous reaction mixture is diluted with addition of a specified volume of preheated water within a critical period between incipient appearance of turbidity in the reaction mixture by the precipitation of the carbonate hydroxide and a moment 30 minutes thereafter. In this way, the yttrium oxide particles obtained have a globular particle configuration with a very small average particle diameter D.sub.50 in the range from 0.1 to 0.3 .mu.m and are suitable for use in various fine applications.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: March 9, 1999
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kazuhiro Wataya, Shigeru Sakai
  • Patent number: 5861134
    Abstract: Internal porosity is created in dense SiO.sub.2 particles by heating a mixture of the particles with B.sub.2 O.sub.3 above the melting point of both mixture components. Resulting SiO.sub.2 particles have altered morphology, internal porosity, and a negative thermal expansion coefficient when heated.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: January 19, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Donald Keith Swanson
  • Patent number: 5821186
    Abstract: The present invention are methods for preparing hydrous titanium oxide spherules, hydrous titanium oxide gels such as gel slabs, films, capillary and electrophoresis gels, titanium monohydrogen phosphate spherules, hydrous titanium oxide spherules having suspendible particles homogeneously embedded within to form a composite sorbent, titanium monohydrogen phosphate spherules having suspendible particles of at least one different sorbent homogeneously embedded within to form a composite sorbent having a desired crystallinity, titanium oxide spherules in the form of anatase, brookite or rutile, titanium oxide spherules having suspendible particles homogeneously embedded within to form a composite, hydrous titanium oxide fiber materials, titanium oxide fiber materials, hydrous titanium oxide fiber materials having suspendible particles homogeneously embedded within to form a composite, titanium oxide fiber materials having suspendible particles homogeneously embedded within to form a composite and spherules of b
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: October 13, 1998
    Assignee: Lockheed Martin Energy Research Corporation
    Inventor: Jack L. Collins
  • Patent number: 5580838
    Abstract: Cross-linked polymer microspheres having a sulfonated cation exchange surface are carefully separated into fractions of equal size and density. Each fraction is separately plated preferably with copper, palladium, nickel, titanium or any metal cation which will reduce with hydrazene to form a conductive metal flash coating. The flash coat plated microspheres are again separated into fractions of equal size and density. Each fraction is then given additional metal platings first of nickel, then preferably palladium, then a support plate for the palladium, followed preferably by a stabilizing metal plate such as chromium. The thus plated microspheres have uniformly thick platings and have a maximized surface area for the amount of metal plated making them particularly useful as catalysts or in electrical products or processes. Microspheres having a plating of palladium exhibit a marked improvement in the adsorption of hydrogen both quantitatively and in rapidity.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 3, 1996
    Inventor: James A. Patterson
  • Patent number: 5453260
    Abstract: Disclosed are amorphous silica or silica-alumina spherical particles composed of X-ray diffractometrically substantially amorphous silica or silica-alumina, wherein individual particles have a definite spherical shape and a notched surface, the circularity (A) represented by the following formula: ##EQU1## wherein r1 stands for the radius of the circumcircle of the profile of the particle in an electron microscope photo thereof and r2 stands for the radius of the inscribed circle of the profile of the particle in the electron microscope photo, is in the range of from 0.90 to 1, the notching degree (B) represented by the formula: ##EQU2## wherein .DELTA.t stands for the depth between the peak and trough in the radial direction of notches on the profile of the particle in the electron microscope photo and r1 is as defined above, is in the range of from 1 to 10%, and the primary particle size (2r1) determined by the electron microscope method is in the range of from 0.1 to 20 .mu.m.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: September 26, 1995
    Assignee: Mizusawa Industrial Chemicals, Ltd.
    Inventors: Tadahisa Nakazawa, Masahide Ogawa, Kiyoshi Abe, Kazuhiko Suzuki, Takashi Tokita, Toshio Ito
  • Patent number: 5348924
    Abstract: A process for producing zeolite aggregates involves providing a formable paste composed of zeolite, a binder composed of an organic/metal oxide containing aluminum, a peptizing agent and water; forming the paste into an aggregate, preferably by extruding into an extrudate; curing the aggregate; hydro-thermally calcining the aggregate; and washing the hydro-thermally calcined aggregate with a washing medium, preferably followed by rinsing with a rinsing medium to remove residual washing medium from the aggregate. The washed and rinsed aggregate may then be permitted to equilibrate or is subjected to a drying procedure. Preferably, the washed and rinsed aggregate is again subjected to curing/hydro-thermal calcining.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: September 20, 1994
    Assignee: Exxon Research & Engineering Co.
    Inventors: Mark J. Potter, Jar-Lin Kao, Virginia R. Cross, Thomas H. Vanderspurt, Edward K. Dienes, Robert E. Riley, Freddie L. Tungate, Arie Bortinger
  • Patent number: 5302566
    Abstract: A process is described for preparing attrition resistant catalyst, particularly vanadium/phosphorus oxide catalyst, having an oxide rich surface layer. The oxide rich surface layer is obtained from a stable oxide-forming mixture which contains both colloidal oxide sol and a soluble oxide precursor.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: April 12, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Jo Ann T. Schwartz
  • Patent number: 5286370
    Abstract: A layered catalyst contains a core of at least one, and preferably three, molecular sieve components within a shell layer of reduced molecular sieve content. A preferred catalyst consists of a core of a large pore molecular sieve, preferably a dealuminized Y-type zeolite, a shape selective paraffin cracking/isomerization component, preferably HZSM-5, and a shape selective aliphatic aromatization component, preferably gallium ZSM-5, within a shell of an alumina-rich, matrix. The shell can capture metals from the feeds being processed, it can act as a metals sink, and can remove metals form the unit by attrition. The catalyst is preferably prepared by forming the core and then coating or encapsulating the core with a shell having a reduced molecular sieve content. The shell may contain a pillared clay or other very large pore cracking component. The shell may be an attritable coating of an amorphous rare earth oxide, aluminum oxide and aluminum phosphate composite, which traps metals.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: February 15, 1994
    Assignee: Mobil Oil Corporation
    Inventors: Pochen Chu, Albin Huss, Jr., Hartley Owen, Joseph A. Herbst, Garry W. Kirker, Paul H. Schipper
  • Patent number: 5236683
    Abstract: Disclosed are amorphous silica or silica-alumina spherical particles composed of X-ray diffractometrically substantially amorphous silica or silica-alumina, wherein individual particles have a definite spherical shape and a notched surface, the circularity (A) represented by the following formula: ##EQU1## wherein r1 stands for the radius of the circumcircle of the profile of the particle in an electron microscope photo thereof and r2 stands for the radius of the inscribed circle of the profile of the particle in the electron microscope photo, is in the range of from 0.90 to 1, the notching degree (B) represented by the following formula: ##EQU2## wherein .DELTA.t stands for the depth between the peak and trough in the radial direction of notches on the profile of the particle in the electron microscope photo and r1 is as defined above, is in the range of from 1 to 10%, and the primary particle size (2r1) determined by the electron microscope method is in the range of from 0.1 to 20 .mu.m.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: August 17, 1993
    Assignee: Mizusawa Industrial Chemicals, Ltd.
    Inventors: Tadahisa Nakazawa, Masahide Ogawa, Kiyoshi Abe, Kazuhiko Suzuki, Takashi Tokita, Toshio Ito