Diatomaceous Earth Patents (Class 502/412)
  • Patent number: 10500572
    Abstract: An extruded, solid honeycomb body comprises a copper-promoted, small pore, crystalline molecular sieve catalyst for converting oxides of nitrogen in the presence of a reducing agent, wherein the crystalline molecular sieve contains a maximum ring size of eight tetrahedral atoms, which extruded, solid honeycomb body comprising: 20-50% by weight matrix component comprising diatomaceous earth, wherein 2-20 weight % of the extruded, solid honeycomb body is diatomaceous earth; 80-50% by weight of the small pore, crystalline molecular sieve ion-exchanged with copper; and 0-10% by weight of inorganic fibres.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: December 10, 2019
    Assignee: Johnson Matthey Catalysts (Germany) GmbH
    Inventors: Juergen Bauer, Ralf Dotzel, Joerg Walter Jodlauk, Rainer Leppelt, Joerg Werner Muench
  • Patent number: 9193949
    Abstract: The method of making a three-dimensional scaffold for three-dimensional cell culture includes obtaining amorphous silica from sorghum husks, producing biogenic silica microbodies from the amorphous silica, and clustering the biogenic silica microbodies to form the three-dimensional scaffold. The three-dimensional scaffold can be used for growing three-dimensional cell cultures, such as human mesenchymal stem cell cultures.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: November 24, 2015
    Assignee: KING SAUD UNIVERSITY
    Inventors: Ali A. Alshatwi, Vaiyapuri Subbarayan Periasamy, Jegan Athinarayanan
  • Publication number: 20140371061
    Abstract: A method of making a diatomaceous earth granulate may include spray-drying a suspension including particles of diatomaceous earth, a liquid medium, and a binder, wherein inorganic solids in the suspension include at least 80 wt % diatomaceous earth. The method may further include recovering a diatomaceous earth spray-dried granulate. A granular diatomaceous earth product obtained by the method may include substantially spherical granules, each having a shell including diatomaceous earth surrounding a hollow core. The product may be used as a filter aid or in filtration.
    Type: Application
    Filed: July 25, 2012
    Publication date: December 18, 2014
    Inventor: Andrew Riley
  • Publication number: 20140102946
    Abstract: This invention relates to a particulate extraction material for the extraction of lithium from a geothermal brine or lithium containing solution. The particulate material includes an inorganic or polymer based substrate that includes a lithium aluminum intercalate layer applied to the exterior of the substrate, wherein the lithium aluminum intercalate layer is operable to capture lithium ions from solution.
    Type: Application
    Filed: December 16, 2013
    Publication date: April 17, 2014
    Applicant: Simbol Inc.
    Inventors: Stephen Harrison, C.V. Krishnamohan Sharma, Brian E. Viani, Diana Peykova
  • Patent number: 8685351
    Abstract: Sorbents for removal of mercury and other pollutants from gas streams, such as a flue gas stream from coal-fired utility plants, and methods for their manufacture and use are disclosed. Embodiments include brominated sorbent substrate particles having a carbon content of less than about 10%. Other embodiments include one or more oxidatively active halides of a nonoxidative metal dispersed on sorbent substrate particles mixed with activated carbon in an amount up to 30% by weight. Further embodiments include physical blending of a flow modifier into the sorbent composition.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: April 1, 2014
    Assignee: BASF Corporation
    Inventors: Xiaolin D. Yang, Pascaline H. Tran, Lawrence Shore
  • Patent number: 8648008
    Abstract: In various embodiments, the present disclosure provides filtering compositions, their method of production, and methods for their use. In specific implementations, the filtering composition includes lanthanum and has a surface area of at least about 125 g/m2. In more specific examples, the filtering composition is free-flowing or has a moisture content between about 10 wt % about 30 wt %. Particular compositions include at least one of iron or magnesium. Some embodiments of the present disclosure provide filtering compositions that are resilient or leach-resistant.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 11, 2014
    Assignee: The Board of Regents of the Nevada System of Higher Education, on Behalf of the University of Nevada, Reno
    Inventors: Manoranjan Misra, Joseph Nanor
  • Publication number: 20140011253
    Abstract: A concentration agent for capture of microorganisms, including diatomaceous earth bearing, on at least a portion of its surface, a surface treatment comprising a surface modifier comprising titanium dioxide, fine-nanoscale gold or platinum, or a combination thereof, and methods for making the concentration agent.
    Type: Application
    Filed: September 11, 2013
    Publication date: January 9, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Manjiri T. Kshirsagar, Tushar A. Kshirsagar, Thomas E. Wood
  • Patent number: 8435922
    Abstract: In various embodiments, the present disclosure provides filtering compositions, their method of production, and methods for their use. In specific implementations, the filtering composition includes lanthanum and has a surface area of at least about 125 g/m2. In more specific examples, the filtering composition is free-flowing or has a moisture content between about 10 wt % about 30 wt %. Particular compositions include at least one of iron or magnesium. Some embodiments of the present disclosure provide filtering compositions that are resilient or leach-resistant.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: May 7, 2013
    Assignee: Board of Regents of the Nevada System of Higher Education
    Inventors: Manoranjan Misra, Joseph Nanor
  • Patent number: 8410017
    Abstract: Disclosed herein are diatomite filter aid products with enhanced permeabilities and flow characteristics, and methods for enhancing the permeabilities and flow characteristics of very fine grain, low permeability diatomite ore by, in one embodiment, pre-agglomerating the ore in the presence of less than 10% water and then subjecting the pre-agglomerated ore to at least one calcination process. At least one flux may be used in the at least one calcination process. Also disclosed herein is a method of processing diatomite ore suitable for samples with high wet densities or large amounts of fine particulate matter. Also disclosed herein are methods of producing commercially applicable filter aid products from Hungarian diatomite.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: April 2, 2013
    Assignee: Imerys Filtration Minerals, Inc.
    Inventors: George Asante Nyamekye, Joseph Levay, John Roulston, John Menear
  • Patent number: 8366940
    Abstract: Zero valent metal composite, manufacturing thereof, using thereof, and system including thereof, for (in-situ or ex-situ) catalytically treating contaminated water, such as sub-surface water, surface water, above-surface water, water vapor, or/and gaseous water. Composite includes powdered diatomite matrix incorporated with nanometer (1-1000 nm) sized particles of a zero valent (transition) metal (iron, cobalt, nickel, copper, zinc, palladium, platinum, or/and gold) and at least one electron transfer mediator (catalyst) from porphyrinogenic organometallic complexes (e.g., metalloporphyrins (chlorophylls, hemes, cytochromes) or metallocorrins (e.g., vitamin B12), and optionally, includes vermiculite. System includes composite and in-situ or/and ex-situ unit containing the composite, enabling exposure of contaminated water thereto. Applicable to in-situ sub-surface permeable reactive barriers (PRBs).
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: February 5, 2013
    Assignee: Yeda Research and Development Co. Ltd.
    Inventors: Brian Berkowitz, Andrea Cortis, Ishai Dror
  • Patent number: 8242050
    Abstract: Filter-aid materials are disclosed herein, as well as processes, systems, and methods using such filter-aid materials for filtering and removing particles and/or constituents from a fluid. Further disclosed herein are filter-aid materials and processes, systems, and methods using such filter-aid materials for filtering and removing particles and/or constituents from a fluid, wherein the filter-aid material comprises at least one composite filter-aid having novel pore size distribution and comprising at least one adsorbent component formed in-situ on at least one filtration component.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: August 14, 2012
    Assignee: World Minerals, Inc.
    Inventors: Jie Lu, Jarrod R. Hart
  • Patent number: 8236196
    Abstract: Some or all of the needs above can be addressed by embodiments of the invention. According to embodiments of the invention, systems and methods for facilitating hydrogen storage using naturally occurring nanostructure assemblies can be implemented. In one embodiment, a method for storing hydrogen can be provided. The method can include providing diatoms comprising diatomaceous earth or diatoms from a predefined culture. In addition, the method can include heating the diatoms in a sealed environment in the presence of at least one of titanium, a transition metal, or a noble metal to provide a porous hydrogen storage medium. Furthermore, the method can include exposing the porous hydrogen storage medium to hydrogen. In addition, the method can include storing at least a portion of the hydrogen in the porous hydrogen storage medium.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: August 7, 2012
    Assignee: Microbes Unlimited, LLC
    Inventor: Carl B. Fliermans
  • Patent number: 8197786
    Abstract: Porous carbon materials and methods of manufacturing the same are provided. One method includes forming a carbon-metal oxide composite by heating a coordination polymer to form a carbon-metal oxide composite, and then removing the metal oxide from the carbon-metal oxide composite. The porous carbon material has an average pore diameter ranging from about 10 nm to about 100 nm, and a d002 ranging from about 3.35 to 3.50 ?.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: June 12, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dong-min Im, Jeong-hee Lee, Yong-nam Ham, Chan-ho Pak
  • Publication number: 20120046165
    Abstract: Filter-aid materials are disclosed herein, as well as processes, systems, and methods using such filter-aid materials for filtering and removing particles and/or constituents from a fluid. Further disclosed herein are filter-aid materials and processes, systems, and methods using such filter-aid materials for filtering and removing particles and/or constituents from a fluid, wherein the filter-aid material comprises at least one composite filter-aid having novel pore size distribution and comprising at least one adsorbent component formed in-situ on at least one filtration component.
    Type: Application
    Filed: September 16, 2010
    Publication date: February 23, 2012
    Inventors: Jie Lu, Jarrod R. Hart
  • Patent number: 8110526
    Abstract: In various embodiments, the present disclosure provides filtering compositions, their method of production, and methods for their use. In specific implementations, the filtering composition includes lanthanum and has a surface area of at least about 125 g/m 2. In more specific examples, the filtering composition is free-flowing or has a moisture content between about 10 wt % about 30 wt %. Particular compositions include at least one of iron or magnesium. Some embodiments of the present disclosure provide filtering compositions that are resilient or leach-resistant.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: February 7, 2012
    Assignee: The Board of Regents of the Nevada System of Higher Education, on Behalf of the University of Nevada, Reno
    Inventors: Manoranjan Misra, Joseph Nanor
  • Patent number: 8084392
    Abstract: A method of producing a range of diatomaceous earth filter aids having selectable permeabilities and less than about 1 percent by weight total crystalline silica. The method includes milling diatomaceous earth ore to a size range of between about 100 micrometers and about 1400 micrometers; calcining the milled diatomaceous earth in a calciner; and milling the calcined diatomaceous earth in an adjustable milling and classification system to produce diatomaceous earth filter aids. Systems to implement such methods and compositions produced by such methods are also described.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: December 27, 2011
    Assignee: EP Minerals, LLC
    Inventors: Peter E. Lenz, Michael J Nannini, James S Shui
  • Publication number: 20110269217
    Abstract: A hazardous substance adsorbing tablet prepared by direct compression of a dry powder mixture which includes a porous particulate adsorbent having an average particle diameter of 100 ?m or less and containing 200 mesh pass particles in an amount of more than 80% by weight, and a particulate binder having an apparent specific gravity of at least 1.
    Type: Application
    Filed: April 4, 2011
    Publication date: November 3, 2011
    Applicants: TOKYO SINCOL CO., LTD., NATIONAL INSTITUTE FOR AGRO-ENVIRONMENTAL SCIENCES
    Inventors: Heesoo EUN, Hiroaki FUKUI
  • 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: 7932209
    Abstract: Disclosed are a liquid heating element and a method for production thereof, and more particularly a solid ingredient A, a liquid ingredient B produced from the solid ingredient A, a liquid heating element produced from the liquid ingredient B and a method for producing the liquid heating element. The solid ingredient is produced by heating activated carbon, kaolin, copper sulfide and phosphoric acid (H3PO4) to a temperature ranging from 1,000 to 1,200° C. The liquid ingredient H is produced by mixing the solid ingredient A with silicon powder and distilled water and heating the mixture. The liquid heating element is produced by mixing the liquid ingredient B with ethylene glycol, leaving the mixture and then filtering the mixture. Since the liquid heating element is very stable and generates heat with minimum power consumption, it can be applied to various heat management systems.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: April 26, 2011
    Inventor: Dong-Soon Kwon
  • Publication number: 20110023711
    Abstract: The problem to be solved by the present invention is to provide a monolith adsorbent which can adsorb a target sample easily in a short time or regardless of whether the amount of the sample is small or large and extract the sample with a small amount of solvent, and easily secure the sample necessary for analysis, and a method and an apparatus for adsorption and retention using the same. The present invention, as the means for solving the problem, is a monolith adsorbent formed by allowing a monolith structure body to contain an adsorbing material such as activated carbon or graphite, exposing the adsorbing material on the surface of the structure body and further surface-treating the surface of the monolith structure body with a hydrophobic or hydrophilic compound or a resin.
    Type: Application
    Filed: June 18, 2008
    Publication date: February 3, 2011
    Applicant: GL SCIENCE INCORPORATED
    Inventors: Atsushi Sato, Hiroyuki Terashima, Yoshiyki Takei
  • Publication number: 20100252485
    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: Application
    Filed: October 13, 2009
    Publication date: October 7, 2010
    Inventors: David Soane, Michael C. Berg, William A. Mowers
  • Patent number: 7767621
    Abstract: Processes for preparing diatomaceous earth filter aids having a reduced beer soluble iron content, diatomaceous earth filter aids and compositions comprising the same, and methods for using the improved diatomaceous earth filter aids are disclosed herein. Further disclosed herein are processes for reducing beer soluble iron content by saturated steam treatment of a diatomaceous earth material in an enclosed vessel.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: August 3, 2010
    Assignee: World Minerals, Inc.
    Inventors: Qun Wang, Timothy R. Smith, Jeffrey D. Taniguchi
  • Publication number: 20100167921
    Abstract: Disclosed herein is a method for processing diatomaceous earth ore comprising roasting a diatomite feed at a temperature ranging from about 850 to about 1600° F. Also disclosed herein is a method for processing a diatomite feed comprising at least one impurity to produce a diatomite product having at least one of reduced loss-on-ignition, reduced impurity content, reduced beer soluble iron content, and improved brightness as compared to the feed composition. Further disclosed herein is a system for processing a diatomite feed comprising a first heating zone for roasting the diatomite at a temperature ranging from about 850 to about 1600° F., a second zone for calcining the diatomite at a temperature of at least about 1600° F., and a counter-current flow of gas from the second heating zone to the first heating zone.
    Type: Application
    Filed: August 24, 2007
    Publication date: July 1, 2010
    Applicant: World Minerals, Inc.
    Inventors: George A. Nyamekye, Timothy R. Smith, Craig Smith, John Menear
  • Patent number: 7666814
    Abstract: A soil conditioner is provided that can clean and improve soil by effectively adsorbing harmful substances, even if it is soil with a lot of underground water, through efficient use of as little adsorbent of harmful substances as possible. The soil conditioner is made by mixing an adsorbent of harmful substances and a water absorbing substance, and shaping the mixture into granular shape.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: February 23, 2010
    Assignee: Nippon Sheet Glass Company, Limited
    Inventor: Koji Fujita
  • Publication number: 20090264287
    Abstract: Processes for preparing diatomaceous earth filter aids having a reduced beer soluble iron content, diatomaceous earth filter aids and compositions comprising the same, and methods for using the improved diatomaceous earth filter aids are disclosed herein. Further disclosed herein are processes for reducing beer soluble iron content by saturated steam treatment of a diatomaceous earth material in an enclosed vessel.
    Type: Application
    Filed: August 24, 2007
    Publication date: October 22, 2009
    Applicant: World Minerals, Inc.
    Inventors: Qun Wang, Timothy R. Smith, Jeffrey D. Taniguchi
  • Publication number: 20090181848
    Abstract: A method of producing a range of diatomaceous earth blended filter aids having selectable permeabilities and less than about 1 percent by weight total of crystalline silica and less than about 0.1% by weight total of respirable crystalline silica. The method includes milling diatomaceous earth ore to a size range of between about 100 micrometers and about 1400 micrometers; calcining the milled diatomaceous earth in a calciner; milling the calcined diatomaceous earth in an adjustable milling and classification system to produce diatomaceous earth filter aids, and blending the diatomaceous earth with expanded perlite to form a low bulk density and low solubility filter aid.
    Type: Application
    Filed: March 20, 2009
    Publication date: July 16, 2009
    Applicant: EP MINERALS, LLC
    Inventors: Peter E. Lenz, Michael J. Nannini, James S. Shui
  • Publication number: 20090081344
    Abstract: A method of extracting residual pesticides from livestock meat fat and a kit to be used therefor. Namely, a method of extracting residual pesticides comprising; (1) a step of homogenizing livestock meat fat, which is a solidified state, in the presence of water and then separating the fat, (2) a step of treating the thus treated fat with a dehydrating agent, and (3) a step of dissolving the dehydrated fat in a solvent in which fat is soluble, re-dissolving the pesticides in a hydrophilic solvent and then concentrating the solution of the hydrophilic solvent to give a liquid sample for measuring the residual pesticides. A kit to be used in the above-described method. Use of the above method and kit makes it possible to simplify the procedure while achieving an effect of reducing the amount of impurities (an organic acid, etc) extracted.
    Type: Application
    Filed: April 24, 2006
    Publication date: March 26, 2009
    Applicant: Nippon Meat Packers, Inc.
    Inventors: Masahiko Kitayama, Masaki Kozono, Takashi Ohmori
  • Publication number: 20090011240
    Abstract: A method of producing a range of diatomaceous earth filter aids having selectable permeabilities and less than about 1 percent by weight total crystalline silica. The method includes milling diatomaceous earth ore to a size range of between about 100 micrometers and about 1400 micrometers; calcining the milled diatomaceous earth in a calciner; and milling the calcined diatomaceous earth in an adjustable milling and classification system to produce diatomaceous earth filter aids. Systems to implement such methods and compositions produced by such methods are also described.
    Type: Application
    Filed: July 3, 2008
    Publication date: January 8, 2009
    Applicant: EP MINERALS, LLC
    Inventors: Peter E. Lenz, Michael J. Nannini, James S. Shui
  • Publication number: 20080119356
    Abstract: Disclosed herein is a dry regenerable sorbent for carbon dioxide present in fuel gases (syngases and coal gases containing hydrogen and carbon monoxide) produced by the combustion of a fossil fuel in industrial plants, including thermal power generation plants, before being released to the air atmosphere, by a dry regenerable sorbent technology. The sorbent is prepared in the shape of a semisphere by forming a green body using a spray drying technique such that it has suitable shape and particle size for a fluidized-bed process for CO2 capture. The sorbent comprises an active component selectively reacting with carbon dioxide present in a gas stream to capture the carbon dioxide, a support necessary to improve the reactivity of the active component and to maintain the shape of the sorbent, and a binder capable of binding the active component to the support to impart sufficient mechanical strength to the sorbent.
    Type: Application
    Filed: November 27, 2007
    Publication date: May 22, 2008
    Inventors: Chong-Kul Ryu, Joong-Beom Lee, Tae-Hyoung Eom, Je-Myung Oh
  • Patent number: 7371707
    Abstract: The attrition resistance of sorbent compositions are enhanced by acid-treating the perlite component of the sorbent. The efficiency of making a promoter metal-containing sorbent composition is enhanced using a novel method for incorporating the promoter metal into the sorbent.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: May 13, 2008
    Assignee: China Petroleum & Chemical Corporation
    Inventors: Jason J. Gislason, Glenn W. Dodwell, Deborah K. Just, Robert W. Morton, Marvin M. Johnson
  • Patent number: 7288499
    Abstract: A regenerable, high-capacity sorbent for removal of mercury from flue gas and processes and systems for making and using the sorbent. A phyllosilicate substrate, for example vermiculite or montmorillinite, acts as an inexpensive support to a thin layer for a polyvalent metal sulfide, ensuring that more of the metal sulfide is engaged in the sorption process. The sorbent is prepared by ion exchange between the silicate substrate material and a solution containing one or more of a group of polyvalent metals including tin (both Sn(II) and Sn(IV)), iron (both Fe(II) and Fe(III)), titanium, manganese, zirconium and molybdenum, dissolved as salts, to produce an exchanged substrate. Controlled reaction of a sulfide ion source with the one or more polyvalent metals that are exchanged on the silicate substrate produces the sorbent. The sorbent is used to absorb elemental mercury or oxidized mercury species such as mercuric chloride from flue gas containing acid gases (e.g.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: October 30, 2007
    Assignee: ADA Technologies, Inc
    Inventors: John S Lovell, Craig S Turchi, Thomas E Broderick
  • 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: 6995246
    Abstract: The present invention provides soluble protein solutions, free of suspended particles in high yield. More particularly, the current invention provides a method for removing suspended particles from soluble protein solutions by filtering the soluble protein solution through highly purified diatomaceous earth.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: February 7, 2006
    Assignee: Akzo Nobel N.V.
    Inventors: Min Wan, Susan M Rabideau
  • Patent number: 6890878
    Abstract: Provided is a catalyst formulation which exhibits extended catalyst life. The formulation comprises a mixture of a ceramic foam material uniformly interspersed between the solid catalyst particles, with the volume percent of ceramic material in the mixture preferably ranging from 20 to 60 volume %. The catalyst formulation is particularly applicable to solid catalyst particles comprised of a phosphoric acid impregnated substrate, and is particularly useful for processes such as catalytic hydrocarbon condensation processes.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: May 10, 2005
    Assignee: United Refining Company
    Inventor: John H. Moore
  • Patent number: 6878669
    Abstract: The attrition resistance of sorbent compositions are enhanced by acid-treating the perlite component of the sorbent. The efficiency of making a promoter metal-containing sorbent composition is enhanced using a novel method for incorporating the promoter metal into the sorbent.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: April 12, 2005
    Assignee: ConocoPhillips Company
    Inventors: Jason J. Gislason, Glenn W. Dodwell, Deborah K. Just, Robert W. Morton, Marvin M. Johnson
  • Patent number: 6653255
    Abstract: This invention relates to highly purified biogenic silica product obtained from diatomite and methods for preparing same. More particularly, this invention pertains to highly purified non-calcined, calcined, and flux-calcined diatomite products which bear the distinguishing porous and intricate structure of silica unique to diatomite and which have an extraordinarily high silica (i.e., silicon dioxide, SiO2) content and low density, resulting in high silica specific volume. These products often also exhibit exceptionally low soluble metals content and/or extreme brightness.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: November 25, 2003
    Assignee: Advanced Minerals Coroporation
    Inventors: Jerome C. Shiuh, Scott K. Palm, Timothy R. Smith, George A. Nyamekye, Jeffrey D. Taniguchi, Qun Wang
  • Publication number: 20030125594
    Abstract: Provided is a catalyst formulation which exhibits extended catalyst life. The formulation comprises a mixture of a ceramic foam material uniformly interspersed between the solid catalyst particles, with the volume percent of ceramic material in the mixture preferably ranging from 20 to 60 volume %. The catalyst formulation is particularly applicable to solid catalyst particles comprised of a phosphoric acid impregnated substrate, and is particularly useful for processes such as catalytic hydrocarbon condensation processes.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 3, 2003
    Applicant: UNITED REFINING COMPANY
    Inventor: John H. Moore
  • Patent number: 6432872
    Abstract: An object of the present invention is to provide a composition for use in adsorption treatment which is easy to handle; a method for easily preparing the composition in the form of grains without inhibiting its adsorption ability; products such as an adsorption treatment device and a filter for air-cleaning formed with the composition; and a method of adsorption treatment. The composition for use in adsorption treatment of the present invention includes an adsorbing substance which is reactive with components to be adsorbed in the presence of moisture, a water-absorbing substance, and a binder, wherein the binder is 1.3 to 8 weight percent with respect to the water-absorbing substance.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: August 13, 2002
    Assignee: Mazda Motor Corporation
    Inventors: Yoshinori Tsushio, Tuyoshi Nishijima, Taeko Shimizu, Ichiro Kitayama, Osamu Takayama, Hirosuke Sumida
  • Patent number: 6383981
    Abstract: An adsorbent product for the adsorption of trace elements of sulfur, arsenic, mercury, compounds which contain these elements or metal hydrides from a hydrocarbon gas stream, preferably an olefinic or paraffinic stream, wherein the adsorbent product is iron oxide and manganese oxide placed on a support material, preferably aluminum oxide. Also disclosed is a process for the use of this adsorbent product for the removal of trace elements of arsenic, mercury and sulfur or compounds containing those elements or metal hydrides from a hydrocarbon gas stream, preferably an olefinic or paraffinic gas stream.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: May 7, 2002
    Assignee: Süd-Chemie Inc.
    Inventors: Steven A. Blankenship, Richard W. Voight
  • Patent number: 6312604
    Abstract: The present invention relates to compositions and methods for treating water to reduce the phosphate level thereof and control the growth therein of algae and other microorganisms by treating the water with an effective amount of a composition containing a lanthanide halide.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: November 6, 2001
    Assignee: Zodiac Pool Care, Inc.
    Inventors: Raymond P. Denkewicz, Jr., Ernest E. Senderov, Joseph W. Grenier, Therese Souza
  • Publication number: 20010023233
    Abstract: This invention relates to highly purified biogenic silica product obtained from diatomite and methods for preparing same. More particularly, this invention pertains to highly purified non-calcined, calcined, and flux-calcined diatomite products which bear the distinguishing porous and intricate structure of silica unique to diatomite and which have an extraordinarily high silica (i.e., silicon dioxide, SiO2) content and low density, resulting in high silica specific volume. These products often also exhibit exceptionally low soluble metals content and/or extreme brightness.
    Type: Application
    Filed: May 2, 2001
    Publication date: September 20, 2001
    Inventors: Jerome C. Shiuh, Scott K. Palm, Timothy R. Smith, George A. Nyamekye, Jeffrey D. Taniguchi, Qun Wang
  • 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: 5958830
    Abstract: A process to make a sorbent composition said process comprising:(1) contacting(1.1) at least one zinc component, where said zinc component comprises zinc oxide, or a compound convertible to zinc oxide,(1.2) at least one silica component, where said silica component comprises silica, or a compound convertible to silica,(1.3) at least one colloidal oxide component, where said colloidal oxide component comprises a mixture that comprises a metal oxide, and optionally(1.4) at least one pore generator component; to form a first mixture; and thereafter,(2) extruding said first mixture to form an extruded, first mixture; and thereafter,(3) sphering said extruded, first mixture to form a sphered, extruded, first mixture that comprises particles where said particles have a particle size from about 0.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: September 28, 1999
    Assignee: Phillips Petroleum Company
    Inventors: Gyanesh P. Khare, Donald R. Engelbert
  • Patent number: 5925309
    Abstract: A method of manufacturing ceramic filter media for water filters involves the steps of mixing a plurality of raw ceramic materials and a plurality of extrusion-aid materials to form a mixture of constituent materials, extruding the constituent materials to form tubular filter media, drying the tubular filter media, and firing the tubular filter media to create ceramic tubular filter media. The step of drying the tubular filter media preferably comprises placing the tubular filter media on top of rotating rollers which dries the tubular filter media evenly and preserves the desired characteristics of the tubular filter media.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: July 20, 1999
    Assignee: Mountain Safety Research
    Inventors: Osgood J. Whittemore, Chris J. Adams, Daniel J. Vorhis
  • 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: 5801051
    Abstract: A method for removing organic contaminants including yeast cells from a particulate filter aid such as kieselguhr includes steps of producing an aqueous suspension of the contaminated filter aid, and adding to the suspension a mixture of enzymes (protease, amylase and glucanase) capable of dissolving yeast cell walls. Optionally, an oxidizer may also be added, and the suspension may be agitated ultrasonically. After sufficient time, the enzyme and dissolved organic contaminant are removed from the suspension by rinsing with dilute caustic soda, and the decontaminated filter aid is acid neutralized. Finally, the filter aid may be separated into coarse and fine fractions, and re-used.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: September 1, 1998
    Assignee: Filtrox-Werk AG
    Inventors: Johannes Kiefer, Manfred Girr, Aukens Jan Smaal, Brigitte Lippuner
  • Patent number: 5710090
    Abstract: Unique pink/salmon diatomite agglomerates, well suited as filtering agents/aids, have a cristobalite content of less than 1.5%, a permeability ranging from 20 to 500 millidarcys, a cake density of less than 0.400 g/cm.sup.3, and are prepared by homogeneously intimately admixing a diatomite with a binder solution of silicic acid or of an alkali metal silicate, drying and optionally gently grinding the agglomerates thus formed, and then calcining the agglomerates at a temperature no greater than 850.degree. C., preferably no greater than 600.degree. C.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: January 20, 1998
    Assignee: Ceca S.A.
    Inventor: Pascal Dufour
  • Patent number: 5683953
    Abstract: Methods and compositions are disclosed for treating swimming pool waters in order to remove one or more nutrients necessary for algal growth and to accelerate the breakdown of objectionable chloramines within chlorinated pool waters.The target nutrients of preference are those containing phosphorus or nitrogen. Phosphorus nutrients are preferably removed by ion-exchange with finely divided lanthanum carbonate, or by direct precipitation in the pool with liquid lanthanum chloride. Nitrogen nutrients (including, in particular, chloramines) may be removed (possibly with the aid of catalysts and in separate reactors). The same reagents used to scavenge phosphates are useful in this regard, the nitrogen being released from the pool water as a nitrogenous gas.To allow the fine lanthanum carbonates to be conveniently handled in the pool environment, they may be linked to larger carrier particles, such as those of diatomaceous earth, or they may be embedded within porous beads formed from polymers or gels.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: November 4, 1997
    Inventor: Dudley John Mills
  • Patent number: 5656568
    Abstract: This invention relates to highly purified biogenic silica product obtained from diatomite and methods for preparing same. More particularly, this invention pertains to highly purified non-calcined, calcined, and flux-calcined diatomite products which bear the distinguishing porous and intricate structure of silica unique to diatomite and which have an extraordinarily high silica (i.e., silicon dioxide, SiO.sub.2) content and low density, resulting in high silica specific volume. These products often also exhibit exceptionally low soluble metals content and/or extreme brightness.
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: August 12, 1997
    Assignee: Advanced Minerals Corporation
    Inventors: Jerome C. Shiuh, Scott K. Palm, Timothy R. Smith, George A. Nyamekye, Jeffrey D. Taniguchi, Qun Wang
  • Patent number: RE44124
    Abstract: A regenerable, high-capacity sorbent for removal of mercury from flue gas and processes and systems for making and using the sorbent. A phyllosilicate substrate, for example vermiculite or montmorillinite, acts as an inexpensive support to a thin layer for a polyvalent metal sulfide, ensuring that more of the metal sulfide is engaged in the sorption process. The sorbent is prepared by ion exchange between the silicate substrate material and a solution containing one or more of a group of polyvalent metals including tin (both Sn(II) and Sn(IV)), iron (both Fe(II) and Fe(III)), titanium, manganese, zirconium and molybdenum, dissolved as salts, to produce an exchanged substrate. Controlled reaction of a sulfide ion source with the one or more polyvalent metals that are exchanged on the silicate substrate produces the sorbent. The sorbent is used to absorb elemental mercury or oxidized mercury species such as mercuric chloride from flue gas containing acid gases (e.g.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: April 2, 2013
    Assignee: Novinda, Inc.
    Inventors: John Lovell, Craig Turchi, Thomas E. Broderick