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| Number | Title | Issue Date |
| 8435922 | Arsenic adsorbing composition and methods of use 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 | 05/07/2013 |
| 8410017 | Filter aids made from low permeability diatomites 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-agglomeratin... | 04/02/2013 |
| 8110526 | Arsenic absorbing composition and methods of use 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 | 02/07/2012 |
| 8084392 | Crystalline silica-free diatomaceous earth filter aids and methods of manufacturing the same 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... | 12/27/2011 |
| 7767621 | Processes for reducing beer soluble iron in diatomaceous earth products, diatomaceous earth products and compositions thereof, and methods of use 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 di... | 08/03/2010 |
| 7666814 | Soil conditioner 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 ma... | 02/23/2010 |
| 7371707 | Desulfurization sorbent 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 t... | 05/13/2008 |
| 7288499 | Regenerable high capacity sorbent for removal of mercury from flue gas 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 polyval... | 10/30/2007 |
| 7267811 | Fuel reformer catalyst and absorbent materials Materials that are useful for absorption enhanced reforming (AER) of a fuel, including absorbent materials and catalyst materials, and methods for using such materials for the conversion of carbon-based fuels to a H2-rich product gas. The materials can be... | 09/11/2007 |
| 7264788 | Fuel reformer catalyst and absorbent materials Materials that are useful for absorption enhanced reforming (AER) of a fuel, including absorbent materials and catalyst materials and methods for using the materials. The materials can be fabricated by spray processing. The use of the materials in AER can produce a ... | 09/04/2007 |
| 7220704 | Desulfurization and novel compositions for same 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... | 05/22/2007 |
| 6995246 | Methods for removing suspended particles from soluble protein solutions 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 ... | 02/07/2006 |
| 6962660 | Fluid filter system with secondary flow path for augmented filtration A filter system for spas and swimming pools is disclosed having a primary filter containing a porous membrane made of multiple plies. A fluid purifying medium in the form of irregularly shaped copper and zinc alloy particles is captured between the plies and placed ... | 11/08/2005 |
| 6957743 | Microbiological water filter A method and device for the filtration and/or purification of fluids water or other solutions containing microbiological contaminants, such as fluids containing including bacteria and/or viruses, where the fluid water is passed through a purification material compos... | 10/25/2005 |
| 6890878 | Catalyst formulation comprising ceramic foam material 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 preferabl... | 05/10/2005 |
| 6878669 | Desulfurization and sorbent 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 t... | 04/12/2005 |
| 6653255 | Highly purified biogenic silica product 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... | 11/25/2003 |
| 6432872 | Composition for use in adsorption treatment, products formed with the same, and a method for producing adsorbent using the same 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 adso... | 08/13/2002 |
| 6383981 | Adsorbent for the removal of trace quantities from a hydrocarbon stream and process for its use 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 ir... | 05/07/2002 |
| 6150300 | Process to produce sorbents 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... | 11/21/2000 |
| 5958830 | Sorbent compositions 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 compon... | 09/28/1999 |
| 5925309 | Method for the extrusion of ceramic filter media 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 t... | 07/20/1999 |
| 5814209 | Method for ecological utilization of acid effluents of fuller's earth 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 Fe2+/3+ -, Al... | 09/29/1998 |
| 5801051 | Method and apparatus for cleaning a filter aid 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... | 09/01/1998 |
| 5710090 | Controlledly permeable/cristobalite-free diatomaceous filtering agents 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/cm3, and are prepared by homo... | 01/20/1998 |
| 5683953 | Composition for the treatment of swimming pool water 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 ... | 11/04/1997 |
| 5656568 | Highly purified biogenic silica product 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... | 08/12/1997 |
| 5625054 | DNA purification by solid phase extraction using fluorinated celite The present invention relates to fluorinated surfaces which exhibit sufficient hydrophilicity and sufficient electropositivity to bind DNA from a suspension containing DNA and permit elution of the DNA from the surface. Generally, the hydrophilic and elec... | 04/29/1997 |
| 5510310 | Floor dry material and method of manufacture A floor dry material and method of manufacturing same in which waste cellulosic fibrous material, such as waste paper, is finely shredded after which any metal component is removed and the shredded material is then thoroughly mixed with a biodegradable su... | 04/23/1996 |
| 5492881 | Sorbent system The present invention provides a sorbent with a high pickup ratio (>30 to 1) that has environmental benefits relating to renewable resource use of waste material as primary ingredients and is biodegradable; that is suitable for use on water and on land in... | 02/20/1996 |
| 5438129 | DNA purification by solid phase extraction using partially fluorinated aluminum hydroxide adsorbant The present invention relates to fluorinated surfaces which exhibit sufficient hydrophilicity and sufficient electropositivity to bind DNA from a suspension containing DNA and permit elution of the DNA from the surface. Generally, the hydrophilic and elec... | 08/01/1995 |
| 5350728 | Method of preparing a solid mass for mercury recovery A solid mass for the recovery of mercury, comprising a solid mineral support or dispersant, essentially copper and sulphur at least partly in the form of copper sulfide is produced by the following stages: a) at least one copper compound other than a sulphide ... | 09/27/1994 |
| 5302570 | Environmental product capable of absorbing oil from the surface of water, and process A process and product wherein a siliceous particulate material, that has been treated at room temperature with silicone thinned with a volatile thinner, is rendered hydrophobic and capable of absorbing oil. Particle size is between 25 and 4500 microns and... | 04/12/1994 |
| 5266547 | Diatomaceous earth containing adsorbent, method for making, and methods of use thereof An adsorbent composition containing sugar, vinegar, and diatomaceous earth is disclosed. The sugar, vinegar, and diatomaceous earth are preferably added together in about equal amounts by volume or in amounts of about 20 pounds of sugar, 2 gallons of vine... | 11/30/1993 |
| 5179062 | Process for the production of highly permeable calcined diatomites with low cristobalite content and resultant calcined diatomaceous filtration agents A process for the production of calcined diatomaceous filtration agents having a cristobalite content lower than 1% and a 50-μm screen retention rate lower than 5% by rapid calcination of diatomites, comprising injecting the diatomite into a high-tempera... | 01/12/1993 |
| 5091358 | Regenerable CO2 /H2 O solid sorbent This invention relates to a CO2 /H2 O sorbent comprised of silver oxide, a CO2 sorption promoter, and a support. Preparation of this sorbent consists of impregnating the support with a silver compound, converting the silve... | 02/25/1992 |
| 4980334 | Macroporous alumina/diatomaceous earth bio-supports This invention relates to a whole cell support and a method of preparing the support. The support comprises alumina and diatomaceous earth characterized in that the support has interconnected pores which are at least 5 microns in diameter and preferably h... | 12/25/1990 |
| 4797227 | Process and composition for purifying hydrogen selenide and hydrogen telluride, to remove moisture and oxidant impurities therefrom A scavenger, having utility for purifying a mixture comprising: (i) a primary component selected from one or more members of the group consisting of hydrogen selenide and hydrogen telluride, and (ii) impurities selected from one or more members of the group consist... | 01/10/1989 |
| 4535072 | Absorbent for treating gases containing the materials used for semiconductor products and process of treating such gases with the same An absorbent and process for removing materials for semiconductor products, such as SiH4, B2 H6, SeH2, AsH3, PH3, GeH4, SiH2 Cl2, SiHCl3, (CH3 | 08/13/1985 |
| 4440867 | Calcined, high surface area, particulate matter, processes using this matter, and admixtures with other agents This invention is concerned with production and use of high surface area particulate matter by calcining a charge of clay mineral, feldspar, zeolite, coal ash, fly ash, pozzolan or volcanic ash for a time to develop fractures which increase the surface ar... | 04/03/1984 |
