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Class Information
Number: 502/83
Name: Catalyst, solid sorbent, or support therefor: product or process of making > Zeolite or clay, including gallium analogs > Clay > Acid treating > Sulfuric or hydrochloric acid
Description: Process in which the treatment is effected by either hydrochloric or sulfuric acid.

Patents under this class:

Patent Number Title Of Patent Date Issued
8551654 Secondary batteries with treated bentonite cathodes Oct. 8, 2013
8471068 Process for the preparation of 4-(4-hydroxyphenyl)butan-2-one using solid acid clay catalyst Jun. 25, 2013
8445134 Secondary batteries with treated bentonite cathodes having enhanced conductivity May. 21, 2013
8394975 Amorphous adsorbent, method of obtaining the same and its use in the bleaching of fats and/or oils Mar. 12, 2013
6762144 Processes for producing a blended bleaching clay product and blended bleaching clay products produced by those processes Jul. 13, 2004
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
6531552 Olefin polymerization catalyst and method for polymerizing olefin using the same Mar. 11, 2003
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
6359108 Method for polymerizing cyclic ether Mar. 19, 2002
6315816 Adsorbents, method for the preparation and method for the separation of unsaturated hydrocarbons for gas mixtures Nov. 13, 2001
6235859 Production process for polyvinyl ether and catalyst used for the process May. 22, 2001
6093669 Method for selecting raw material for bleaching clay Jul. 25, 2000
5955049 Mesopore material and method for producing the same Sep. 21, 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
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
5639492 Method and composition for achieving animal weight gain with mycotoxin-contaminated animal food Jun. 17, 1997
5260456 Process for producing itaconic anhydride Nov. 9, 1993
5220086 Catalytic processes in the presence of zeolites of increased internal acid activity and decreased external acid activity Jun. 15, 1993
5173463 Kaolin containing fluid cracking catalyst Dec. 22, 1992
5082815 Kaolin containing fluid cracking catalyst Jan. 21, 1992
5008227 Process for making acid activated bleaching earth using high susceptibility source clay and novel bleaching earth product Apr. 16, 1991
5008226 Process for making acid activated bleaching earth using high susceptibility source clay and novel bleaching earth product Apr. 16, 1991
4919818 Process for extruding and treating clay for improved filtration Apr. 24, 1990
4847226 Process for extruding and acid treating clay for improved filtration Jul. 11, 1989
4738690 Method of removing entrained particles from flue gas and composition of matter Apr. 19, 1988
4717699 Process for acid treating clay for improved filtration Jan. 5, 1988
4656150 Treatment of sericitic clays to produce an adsorbent, absorbent product Apr. 7, 1987
4568657 Catalyst formed of natural clay for use in the hydrodemetallization and hydroconversion of heavy crudes and residues and method of preparation of same Feb. 4, 1986
4565794 Production of silica gel and an adsorbent, absorbent product from sericitic clay Jan. 21, 1986
4529416 Gas separation kinetics in commercial pellets Jul. 16, 1985
4520222 Polymerization catalyst and deodorizing agent and process of use May. 28, 1985
4511752 Process for the hydroisomerization of paraffins Apr. 16, 1985
4493762 Method for reducing the nitrogen content of shale oil with spent oil shale and sulfuric acid Jan. 15, 1985
4468476 Color precursor removal from detergent alkyl benzenes Aug. 28, 1984
4329257 Method of producing a catalyst from clay minerals for the hydration of olefins May. 11, 1982
4235751 Modified montmorillonite clay catalyst Nov. 25, 1980
4147521 Acid washed montmorillonite clays for improving electrostatic precipitation of dust particles Apr. 3, 1979
3958058 Ultra-low expansion ceramic articles May. 18, 1976

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