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Class Information
Number: 502/217
Name: Catalyst, solid sorbent, or support therefor: product or process of making > Catalyst or precursor therefor > Sulfur or compound containing same > Sulfate
Description: Composition in which the sulfur is combined with four oxygen atoms to form a divalent ion.










Sub-classes under this class:

Class Number Class Name Patents
502/218 And group i metal containing (i.e., alkali, ag, au or cu) 111


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
5652192 Catalyst material and method of making Jul. 29, 1997
5629257 Solid superacid catalysts comprising platinum metal May. 13, 1997
5604173 Desulfurization of sulfur compound-containing gases with vanadium catalysts Feb. 18, 1997
5550096 Catalyst for purifying nitrogen oxides from exhaust and waste gases Aug. 27, 1996
5504053 Alkylene oxide catalysts having enhanced activity and/or stability Apr. 2, 1996
5478788 Solid acid alkylation using a sulphated mixed oxide of titanium/nickel Dec. 26, 1995
5447706 Direct synthesis of hydrogen peroxide by heterogeneous catalysis, catalyst for the said synthesis and method of preparation of the said catalyst Sep. 5, 1995
5391533 Catalyst system for producing chlorine dioxide Feb. 21, 1995
5380691 Catalytic microporous zirconia particulates Jan. 10, 1995
5369076 Vanadium catalysts and desulfurization of sulfur compound-containing gases therewith Nov. 29, 1994
5278123 Monolithic catalysts for converting sulfur compounds into SO2 Jan. 11, 1994
5254793 Alkylation process and catalyst therefor Oct. 19, 1993
5252473 Production of esters of lactic acid, esters of acrylic acid, lactic acid, and acrylic acid Oct. 12, 1993
5227356 Catalyst containing metal oxides for use in the degenerative oxidation of organic compounds present in exhaust gases from combustion plants Jul. 13, 1993
5214017 Solid-acid alkylation catalyst compositions for alkylation processes May. 25, 1993
5212136 Solid-acid alkylation catalyst compositions for alkylation processes May. 18, 1993
5182247 Sulfated catalyst for skeletal isomerization of olefins Jan. 26, 1993
5137855 Catalysts for selective catalytic reduction denox technology Aug. 11, 1992
5135901 A catalyst composition comprising rhodium, ruthenium,and a promoter Aug. 4, 1992
5128291 Porous titania or zirconia spheres Jul. 7, 1992
5072024 Synthesis of N-substituted amides by condensation of nitriles with certain organic hydroxyl compounds Dec. 10, 1991
5039645 Cement-containing catalyst composition and process for its preparation Aug. 13, 1991
5039646 Cement-containing catalyst composition and process for its preparation Aug. 13, 1991
5036035 Solid strong acid catalyst process for the production of the same and use thereof Jul. 30, 1991
5004718 Process for calcining a denitrating catalyst Apr. 2, 1991
4992252 Method for production of hydroxylammonium salt Feb. 12, 1991
4952548 Catalyst for removing nitrogen oxides Aug. 28, 1990
4929586 Catalysts for selective catalytic reduction DeNOx technology May. 29, 1990
4921826 Process for producing an active carbon catalyst May. 1, 1990
4918036 Cracking catalyst/sulfur oxide gettering agent compositions Apr. 17, 1990
4918041 Catalyst for hydrocarbon conversion and conversion process utilizing the same Apr. 17, 1990
4914073 Process for the manufacture of catalytic elements and catalytic elements so produced Apr. 3, 1990
4912082 Catalyst for carbon monoxide oxidation Mar. 27, 1990
4895821 Process for the manufacture of catalytic elements and catalytic elements so produced Jan. 23, 1990
4891348 Catalyst for removing nitrogen oxides in exhaust gases Jan. 2, 1990
4853357 Olefin oxidation catalyst system Aug. 1, 1989
4831004 Impregnated alumina-containing material May. 16, 1989
4820676 Treated alumina material for fixed hydrofining beds and process for its preparation Apr. 11, 1989
4798817 Selective catalytic reduction catalyst consisting of iron sulfate, ceria and alumina Jan. 17, 1989
4780445 Selective catalytic reduction catalyst consisting essentially of nickel and/or manganese sulfate, ceria and alumina Oct. 25, 1988
4778588 Hydrotreating process employing an impregnated alumina containing material Oct. 18, 1988
4771026 Catalyst in the form of a plate for nitrogen oxide reduction in exhaust gases Sep. 13, 1988
4766103 Preparation of 1,4-dichlorobenzene Aug. 23, 1988
4758545 Process for the manufacture of catalyst moldings from granular catalyst material such as iron ore or chromium ore with the use of a binder Jul. 19, 1988
4751212 Process for the manufacture of a catalyst for the reduction of nitrogen oxides in exhaust gases Jun. 14, 1988
4746483 Process for the manufacture of catalyst molding May. 24, 1988
4727201 Preparation of 1,4-dichlorobenzene Feb. 23, 1988
4721816 Preparation of nonionic surfactants Jan. 26, 1988
4720474 Olefin oxidation catalyst system Jan. 19, 1988
4695437 Selective catalytic reduction catalysts Sep. 22, 1987

1 2 3 4 5










 
 
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