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| Number | Title | Issue Date |
| 7326346 | High capacity regenerable sorbent for removal of arsenic and other toxic ions from drinking water The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate suc... | 02/05/2008 |
| 7275565 | Multi-conduit, multi-nozzle fluid distributor An apparatus for distributing a fluid is disclosed. The apparatus comprises a plurality of conduits and outlet ports that are capable of providing improved distribution of fluids. One or more conduits are arranged within a single conduit, which provides a compact an... | 10/02/2007 |
| 7276167 | Method of adding activated carbon in water purification and method of water purification When a raw water to be filtered c is fed from a raw water tank 11 reservoiring a raw water (water to be treated) to a membrane module by a raw water pump P1, an activated carbon raw material supplied from an activated carbon tank is milled together wit... | 10/02/2007 |
| 7208440 | Method for pretreatment of catalysts with a phosphoric acid base The invention relates to a method for pretreatment of a solid catalyst that is obtained by a reaction between an inorganic binder and phosphoric acid, whereby said method comprises a stage in which said catalyst is brought into contact with a mixture of hydrocarbons... | 04/24/2007 |
| 7183235 | High capacity regenerable sorbent for removing arsenic and other toxic ions from drinking water The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate suc... | 02/27/2007 |
| 7160830 | Process for the preparation of catalyst microspheres The present invention relates to a process for the preparation of catalyst particles with a particle diameter in the range 20–2000 microns involving the steps of agitating at least two dry catalyst ingredients, spraying a liquid binding agent on the catalyst ingre... | 01/09/2007 |
| 7070746 | Process for nitrous oxide purification A method for purification of an oxygen contaminated nitrous oxide gas by feeding the nitrous oxide gas and a reducing agent such as hydrogen, carbon monoxide or ammonia into a de-oxidation reactor, performing de-oxidation by reacting the reducing agent with oxygen u... | 07/04/2006 |
| 7063804 | Compositions for treating phosphate in water Compositions including alum and a smectite mineral material for the clarification of bodies of water by removal of dissolved solids, dissolved organic materials and other anions such as fluoride and chloride as well as the removal of total phosphorus from such bodie... | 06/20/2006 |
| 6995108 | Method for producing catalysts by acid activation A process for producing catalysts by acid activation of phyllosilicates and coating with catalytically active metal ions wherein the acid activation is carried out in the presence of catalytically active metal ions. The solution which forms during acid activation to... | 02/07/2006 |
| 6914026 | Hydrothermally stable metal promoted zeolite beta for NOx reduction The present invention is directed to an iron-promoted zeolite beta catalyst useful in the selective catalytic reduction of nitrogen oxides with ammonia in which the iron-promoted zeolite beta is treated so as to provide increased amounts of the iron promoter in the ... | 07/05/2005 |
| 6762144 | Processes for producing a blended bleaching clay product and blended bleaching clay products produced by those processes A process for the production of a bleaching clay product which includes the steps of selecting a naturally occurring, acidic hormite clay product, cleaning and crushing the hormite clay products to form clay clumps, selecting a naturally occurring less acidic, clay ... | 07/13/2004 |
| 6759359 | Processes for producing a bleaching clay product A process for the production of a bleaching clay product which includes the steps of selecting a naturally occurring hormite clay product, cleaning and crushing the clay product to form clay clumps less than 6 in. in diameter, and aging the crushed hormite clay for ... | 07/06/2004 |
| 6723296 | Material and method for treating gaseous media containing volatile organic compounds The invention relates to a material for treating gaseous media containing volatile organic components. According to the invention, the material is porous and exhibits an absorption capacity of approximately 20-30% in relation to the dry weight thereof, containing ap... | 04/20/2004 |
| 6677412 | Process for preparing a highly active metallocene catalyst supported on polymer bead for olefin polymerization The present invention relates to a process for preparing a highly active metallocene catalyst supported on polymer bead for olefin polymerization, a metallocene catalyst prepared by the said process and a method for alkylene polymerization by employing th... | 01/13/2004 |
| 6613710 | Process for preparation of bi-functional fluid catalytic cracking catalyst composition A process for preparing bi-functional catalyst for Fluid Catalytic Cracking (FCC), that comprises molecular sieves, modified clay and semi-basic alumina and the catalyst for highly effective cracking of high boiling petroleum feedstock to provide simultan... | 09/02/2003 |
| 6602816 | Activated clay particles having similar shapes, method for production thereof and use thereof Activated regular-shaped clay particles forming macropores therein, preserving fine structure of the dioctahedral smectite clay minerals, and having particle diameters controlled to lie within a range in which they exhibit excellent filtering property. Th... | 08/05/2003 |
| 6569798 | Processes for producing a blended bleaching clay product and blended bleaching clay products produced by those processes A process for the production of a bleaching clay product which includes the steps of selecting a naturally occurring, acidic hormite clay product, cleaning and crushing the hormite clay products to form clay clumps, selecting a naturally occurring less ac... | 05/27/2003 |
| 6559090 | Metallocene and constrained geometry catalyst systems employing agglomerated metal oxide/clay support-activator and method of their preparation The present invention is directed to a coordinating catalyst system comprising at least one metallocene or constrained geometry pre-catalyst transition metal compound, (e.g., di-(n-butylcyclopentadienyl)zirconium dichloride), at least one support-activato... | 05/06/2003 |
| 6541409 | Process for producing anionic clay using non-peptized boemite and compositions produced therefrom An economical and environment-friendly processes for the synthesis of anionic clays and the products made therefrom. It involves reacting a slurry comprising non-peptized boehmite with a magnesium source. There is no necessity to wash or filter the produc... | 04/01/2003 |
| 6531552 | Olefin polymerization catalyst and method for polymerizing olefin using the same An olefin polymerization catalyst comprising the following components (A) and (B): Component (A): an ion-exchange layered silicate having an acid site of at most -8.2 pKa, the amount of the acid site is equivalent to at least 0.05 mmol/g of 2,6-dimethylpy... | 03/11/2003 |
| 6489260 | Processes for producing a bleaching clay product and bleaching clay products produced by those processes A process for the production of a bleaching clay product which includes the steps of selecting a naturally occurring hormite clay product, cleaning and crushing the clay product to form clay clumps less than 6 in. in diameter, aging the crushed hormite cl... | 12/03/2002 |
| 6399535 | Coordination catalyst systems employing agglomerated metal oxide/clay support-activator and method of their preparation The present invention is directed to a coordinating catalyst system comprising at least one bidentate or tridentate ligand containing pre-catalyst transition metal compound, (e.g., 2,6-bis (2,4,6-trimethylarylamino)pyridyl iron dichloride), at least one ... | 06/04/2002 |
| 6379436 | Macroporaus aluminosilicate desiccant, preparation from sodalite and use in enthalpy energy wheels Sodalite is treated with acid to transform the surface to provide a highly macroporous material that demonstrates water swing capacities exceeding those of high performance, low temperature desiccants under high latent load at relatively high ambient temp... | 04/30/2002 |
| 6365536 | Method of making bleaching clay A bleaching clay having an enhanced bleaching performance in oils is produced by first beneficiating a raw clay to remove sand and thereafter conditioning and then concentrating the beneficiated clay with a pH modifier and a Lewis acid salt.... | 04/02/2002 |
| 6350383 | Remediation material and remediation process for sediments A material and method for removal of environmental oxyanions (and especially phosphates), the material comprising a substrate such as a clay modified with complexing elements selected from Group IIIB, Group IVB, and lanthanide elements (or a mixture of su... | 02/26/2002 |
| 6333290 | Process for producing anionic clays using magnesium acetate Economical and environment-friendly processes for the synthesis of anionic clays and anionic clay-like materials with acetate anions as the charge-balancing interlayer species are disclosed. The processes involve combining a slurry of a gibbsite or its th... | 12/25/2001 |
| 6288003 | Processes for producing a bleaching clay product A process for the production of a bleaching clay product which includes the steps of selecting a naturally occurring hormite clay product, cleaning and crushing the clay product to form clay clumps less than 2 in. in diameter, aging the crushed hormite cl... | 09/11/2001 |
| 6235859 | Production process for polyvinyl ether and catalyst used for the process Provided are an industrially advantageous process for producing a polymer of polyvinyl ether at a temperature of not lower than a room temperature for short time, and a catalyst used for the process. The above process is characterized by using an acid cla... | 05/22/2001 |
| 6207612 | Removal of impurities from hydrocarbon streams The invention provides media for absorption of phosphate and metal contaminants from a hydrocarbon stream and a method of making such media. The media comprise alumina with relatively minor amounts of calcia and magnesia and are made by a process in which... | 03/27/2001 |
| 6166278 | Use of naturally acid smectites to remove olefins from aromatics or aromatic mixtures and processes therewith A catalyst for removing olefins from aromatic compounds or mixtures of aromatic compounds wherein the catalyst is a naturally acidic smectite clay containing exchangeable cations wherein the naturally acidic smectite clay has a cation exchange capacity of... | 12/26/2000 |
| 6133497 | Catalyst for removing olefins from aromatic compounds or mixtures thereof A catalyst is described on the basis of acid-activated smectitic clay minerals for removing olefins from aromatic compounds or mixtures of aromatic compounds which is characterized in that the acid-activated clay mineral contains at least 5 milli-equivale... | 10/17/2000 |
| 6120595 | Method of producing activated clay for treating aromatic hydrocarbons The present invention provides an activated clay for refining aromatic hydrocarbons such as BTX (benzene, toluene, xylene), etc., satisfying the requirements of both excellent life and excellent side-reaction-preventing property. The activated clay for tr... | 09/19/2000 |
| 6093669 | Method for selecting raw material for bleaching clay A process for making a bleaching clay composition useful for purification of oil is disclosed. The process involves controlled acidification of a palygorskite and smectite clay mineral with sulfuric acid. The clay mineral starting material exhibits, in an... | 07/25/2000 |
| 6074975 | Hydrocarbon conversion catalyst composition and processes therefor and therewith A catalyst composition, a process for producing the composition, and a hydrotreating process for converting a hydrocarbon stream such as, for example, gasoline, to olefins and C6 to C8 aromatic hydrocarbons such as toluene and xylene... | 06/13/2000 |
| 6040257 | Hydrocarbon conversion catalyst composition and processes therefor and therewith A catalyst composition, a process for producing the composition, and a hydrocarbon conversion process for converting a hydrocarbon stream such as, for example, gasoline, to olefins and C6 to C8 aromatic hydrocarbons such as benzene, ... | 03/21/2000 |
| 6034020 | Zeolite-based catalyst material, the preparation thereof and the use thereof A process for producing catalyst compositions for converting a cracked gasoline feedstock to a product that is principally lower olefins. The catalyst compositions produced thereby. A process for converting a cracked gasoline feedstock to a product that i... | 03/07/2000 |
| 6025293 | Hydrocarbon conversion catalyst composition and processes therefor and therewith A catalyst composition, a process for producing the composition and a hydrocarbon conversion process for converting a C9 + aromatic compound to a C6 to C8 aromatic hydrocarbon such as a xylene are disclosed. The compositio... | 02/15/2000 |
| 6017840 | Hydrotreating catalyst composition and processes therefor and therewith A catalyst composition and a process for converting a hydrocarbon stream such as, for example, a C9 +aromatic compound to C6 to C8 aromatic hydrocarbons such as xylenes are disclosed. The catalyst composition comprises an ... | 01/25/2000 |
| 5980849 | Mesopore material, laminar silicic acid, and method of manufacturing mesopore material and laminar silicic acid Provided is a mesopore material and the manufacturing method thereof characterized by having uniform diameter of each pore as well as a high crystallographic regularity, comprising primary particles having a small axe with uniformity, allowing for synthes... | 11/09/1999 |
| 5928982 | Catalyst for polymerizing an olefin and method for polymerizing the olefin A catalyst for polymerizing an olefin, which comprises (A) a metallocene transition metal compound, (B) (1) an ion-exchanging layered compound other than a silicate or (2) an inorganic silicate prepared by treating a starting ion-exchanging layer compound... | 07/27/1999 |
