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Class Information
Number: 502/81
Name: Catalyst, solid sorbent, or support therefor: product or process of making > Zeolite or clay, including gallium analogs > Clay > Acid treating
Description: Process in which the clay is contacted with an acid or the product of such process.










Sub-classes under this class:

Class Number Class Name Patents
502/82 Plural acid treatment 12
502/83 Sulfuric or hydrochloric acid 43


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8394975 Amorphous adsorbent, method of obtaining the same and its use in the bleaching of fats and/or oils Mar. 12, 2013
8273676 Puffed bentonite litter Sep. 25, 2012
8084384 Magnesium aluminosilicate clays--synthesis and catalysis Dec. 27, 2011
7910511 Method of preparing metallic nanoparticles and materials thus obtained Mar. 22, 2011
7897719 Catalyst and process for the polymerization of cyclic ethers Mar. 1, 2011
7829493 Method of preparing metallic nanoparticles and materials thus obtained Nov. 9, 2010
7582320 Acid activated montmorillonite based filtration aid Sep. 1, 2009
7579299 Semi-synthetic bleaching earth Aug. 25, 2009
7456249 Catalyst, its preparation and the polymerization of cyclic ethers over this catalyst Nov. 25, 2008
6995108 Method for producing catalysts by acid activation Feb. 7, 2006
6762144 Processes for producing a blended bleaching clay product and blended bleaching clay products produced by those processes Jul. 13, 2004
6759359 Processes for producing a bleaching clay product Jul. 6, 2004
6723296 Material and method for treating gaseous media containing volatile organic compounds Apr. 20, 2004
6677412 Process for preparing a highly active metallocene catalyst supported on polymer bead for olefin polymerization Jan. 13, 2004
6613710 Process for preparation of bi-functional fluid catalytic cracking catalyst composition Sep. 2, 2003
6602816 Activated clay particles having similar shapes, method for production thereof and use thereof Aug. 5, 2003
6569798 Processes for producing a blended bleaching clay product and blended bleaching clay products produced by those processes May. 27, 2003
6559090 Metallocene and constrained geometry catalyst systems employing agglomerated metal oxide/clay support-activator and method of their preparation May. 6, 2003
6541409 Process for producing anionic clay using non-peptized boemite and compositions produced therefrom Apr. 1, 2003
6531552 Olefin polymerization catalyst and method for polymerizing olefin using the same Mar. 11, 2003
6489260 Processes for producing a bleaching clay product and bleaching clay products produced by those processes Dec. 3, 2002
6399535 Coordination catalyst systems employing agglomerated metal oxide/clay support-activator and method of their preparation Jun. 4, 2002
6379436 Macroporaus aluminosilicate desiccant, preparation from sodalite and use in enthalpy energy wheels Apr. 30, 2002
6365536 Method of making bleaching clay Apr. 2, 2002
6350383 Remediation material and remediation process for sediments Feb. 26, 2002
6333290 Process for producing anionic clays using magnesium acetate Dec. 25, 2001
6288003 Processes for producing a bleaching clay product Sep. 11, 2001
6235859 Production process for polyvinyl ether and catalyst used for the process May. 22, 2001
6207612 Removal of impurities from hydrocarbon streams Mar. 27, 2001
6166278 Use of naturally acid smectites to remove olefins from aromatics or aromatic mixtures and processes therewith Dec. 26, 2000
6133497 Catalyst for removing olefins from aromatic compounds or mixtures thereof Oct. 17, 2000
6120595 Method of producing activated clay for treating aromatic hydrocarbons Sep. 19, 2000
6093669 Method for selecting raw material for bleaching clay Jul. 25, 2000
6074975 Hydrocarbon conversion catalyst composition and processes therefor and therewith Jun. 13, 2000
6040257 Hydrocarbon conversion catalyst composition and processes therefor and therewith Mar. 21, 2000
6034020 Zeolite-based catalyst material, the preparation thereof and the use thereof Mar. 7, 2000
6025293 Hydrocarbon conversion catalyst composition and processes therefor and therewith Feb. 15, 2000
6017840 Hydrotreating catalyst composition and processes therefor and therewith Jan. 25, 2000
5980849 Mesopore material, laminar silicic acid, and method of manufacturing mesopore material and laminar silicic acid Nov. 9, 1999
5928982 Catalyst for polymerizing an olefin and method for polymerizing the olefin Jul. 27, 1999
5922630 Hydrotreating catalyst composition and processes therefor and therewith Jul. 13, 1999
5917069 Adsorbent for treatment of oils and/or fats Jun. 29, 1999
5883035 Mesoporous silicoaluminate products and production thereof by controlled acid extraction of aluminum from calcium bentonite clay Mar. 16, 1999
5869415 Process for activating layered silicates Feb. 9, 1999
5866744 Process for converting a c.sub.9 + hydrocarbon to a C.sub.6 to C.sub.8 aromatic using a steamed, acid-leached, impregnated zeolite Feb. 2, 1999
5824825 Phosphoric acid catalyst and its use Oct. 20, 1998
5783511 Process for selecting raw material and making a bleaching clay Jul. 21, 1998
5756415 Method of making a enzyme immobilizing carrier May. 26, 1998
5744674 Catalyst and process for the conversion of heavy aromatics to light aromatics Apr. 28, 1998
5670435 Method and composition for clarifying waste water Sep. 23, 1997

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