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Browse by Category: Main > Chemistry
Class Information
Number: 502/521
Name: Catalyst, solid sorbent, or support therefor: product or process of making > Metal contaminant passivation
Description: Collection of art directed to a process of counteracting the undesired effect of a metal in a catalyst or sorbent, without removing said metal.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8551431 Mercury removal from flue gas streams using treated sorbents Oct. 8, 2013
8303919 System and method for protection of SCR catalyst and control of multiple emissions Nov. 6, 2012
RE37842 Regenerating zeolitic cracking catalyst Sep. 17, 2002
RE37789 Regenerating zeolitic cracking catalyst Jul. 16, 2002
6159887 Vanadium traps for catalyst for catalytic cracking Dec. 12, 2000
6110357 Passivated catalysts for cracking process Aug. 29, 2000
5985778 Method and compositions for stabilization of heavy metals, acid gas removal and pH control in contaminated matrices Nov. 16, 1999
5972201 Hydrocarbon conversion catalyst additives and processes Oct. 26, 1999
5958219 Metals passivation by magnetic treatment to permit higher metals levels on FCC catalyst Sep. 28, 1999
5914028 Reforming process with catalyst pretreatment Jun. 22, 1999
5858208 Methods for improving conversion in fluidized catalytic cracking units Jan. 12, 1999
5719099 Method and compositions for stabilization of heavy metals, acid gas removal and ph control in contaminated matrices Feb. 17, 1998
RE35406 Barium titanium oxide-containing fluidizable cracking catalyst composition Dec. 17, 1996
RE35166 Catalyst Mar. 5, 1996
5407878 Metal passivation/SOX control compositions for FCC Apr. 18, 1995
5401384 Antimony and tin containing compound, use of such a compound as a passivating agent, and process for preparing such a compound Mar. 28, 1995
5389233 Metals passivation of cracking catalysts Feb. 14, 1995
5389592 Method of enhancing the activity of regenerated catalysts Feb. 14, 1995
5378349 Passivated catalysts for cracking process Jan. 3, 1995
5358630 Regenerating zeolitic cracking catalyst Oct. 25, 1994
5308810 Method for treating contaminated catalyst May. 3, 1994
5300469 Composition for passivating vanadium in catalytic cracking and preparation thereof Apr. 5, 1994
5275990 Process for regenerating a spent resid hydroprocessing catalyst using a group IIA metal Jan. 4, 1994
5260240 Process for the demetallization of FCC catalyst Nov. 9, 1993
5250482 Process for magnetic beneficiating petroleum cracking catalyst Oct. 5, 1993
5232885 Process for regenerating a spent resin hydroprocessing catalyst using a group IV metal Aug. 3, 1993
5194411 Catalyst compositions and process for making the same Mar. 16, 1993
5192724 Reactivation of spent cracking catalysts Mar. 9, 1993
5188995 Reactivation and passivation of spent cracking catalysts Feb. 23, 1993
5157006 Additive and process for vanadium capture in catalytic cracking Oct. 20, 1992
5154819 Hydroprocessing using regenerated spent heavy hydrocarbon catalyst Oct. 13, 1992
5151391 Reactivation of spent, metal-containing cracking catalysts Sep. 29, 1992
5141904 Reactivation of spent cracking catalysts Aug. 25, 1992
5096568 Metals passivation Mar. 17, 1992
5057205 Additive for vanadium and sulfur oxide capture in catalytic cracking Oct. 15, 1991
5051384 Method for pretreating a reforming catalyst Sep. 24, 1991
5037786 Metals passivation-zeolite containing cracking catalysts Aug. 6, 1991
5021145 Catalyst Jun. 4, 1991
5021377 Demetallization and passivation of spent cracking catalysts Jun. 4, 1991
5019241 Method of passivating alkali metals on fluid catalytic cracking catalysts using aluminum containing compounds May. 28, 1991
5001096 Metal passivating agents Mar. 19, 1991
4997799 Process for regenerating spent heavy hydrocarbon hydroprocessing catalyst Mar. 5, 1991
4994423 Process for regenerating spent heavy hydrocarbon hydroprocessing catalyst Feb. 19, 1991
4990240 Vanadium passivation in a hydrocarbon catalytic cracking process Feb. 5, 1991
4986896 Method for passivating metals on an FCC catalyst Jan. 22, 1991
4954467 Passivation of metal contaminated cracking catalysts using aqueous suspensions of antimony oxide Sep. 4, 1990
4954244 Treatment of spent cracking catalysts Sep. 4, 1990
4948769 Catalyst Aug. 14, 1990
4944865 Process for cracking high metals content feedstocks Jul. 31, 1990
4939109 Passivation of metal contaminated cracking catalysts Jul. 3, 1990

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