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Class Information
Number: 502/54
Name: Catalyst, solid sorbent, or support therefor: product or process of making > Regenerating or rehabilitating catalyst or sorbent > Gas or vapor treating > Ammonia or derivative thereof
Description: Process in which the treating fluid comprises the compound of nitrogen and three atoms of hydrogen or its substituted or additive forms including ammonium salts, amines and salts thereof, amides, and quaternary compounds.

Patents under this class:

Patent Number Title Of Patent Date Issued
8440357 Fuel cell catalyst regeneration May. 14, 2013
8383544 Dual-stage method for the reactivation of thermally aged nitrogen oxide storage catalysts Feb. 26, 2013
8329765 Fischer tropsch process Dec. 11, 2012
8193114 Catalysts for dual oxidation of ammonia and carbon monoxide with low to no NO.sub.x formation Jun. 5, 2012
8048818 In-situ regeneration of a catalyst masked by calcium sulfate Nov. 1, 2011
7981825 Fuel cell catalyst regeneration Jul. 19, 2011
7935229 Extraction of nickel (0) complexes from nitrile mixtures with reduced rag formation May. 3, 2011
7754370 Fuel cell catalyst material, fuel cell electrode, membrane-electrode assembly, fuel cell, fuel cell catalyst material manufacturing method, and fuel cell electrode manufacturing method Jul. 13, 2010
7736613 Modification process of synthetic silica powder and its quartz glass product Jun. 15, 2010
7612007 Process for regenerating catalyst Nov. 3, 2009
7595033 Regeneration of nt-scr catalysts Sep. 29, 2009
7576023 Naphtha desulfurization with selectively suppressed hydrogenation Aug. 18, 2009
7550641 Methods for recovering activity of molecular sieve catalysts Jun. 23, 2009
7550403 Methods for recovering activity of molecular sieve catalysts Jun. 23, 2009
7405174 Process for regeneration of a catalyst that contains an EUO-structural-type zeolite Jul. 29, 2008
7074735 Selectively suppressing catalytic hydrogenation Jul. 11, 2006
6946030 Method for the production of a silica glass crucible with crystalline regions from a porous silica glass green body Sep. 20, 2005
6815388 Method for activating passivated iron Nov. 9, 2004
6814878 Process for carrying out a hydrogenation reaction and removing pyrophoric catalyst Nov. 9, 2004
6787496 Supported catalyst treatment Sep. 7, 2004
6777369 Process for producing catalyst Aug. 17, 2004
6777451 Catalyst enhancement Aug. 17, 2004
6753354 Fischer-tropsch catalyst enhancement Jun. 22, 2004
6753351 Supported catalyst activation Jun. 22, 2004
6573413 Process for activating catalyst for the hydroxylation of aromatics Jun. 3, 2003
6074770 Process for operating a methanol reforming apparatus Jun. 13, 2000
6066586 Process of regenerating solid catalysts May. 23, 2000
5877108 Performance of used molybdenum based catalysts by the addition of ammonium dimolybdate Mar. 2, 1999
5378668 Process for reactivating ammoxidation catalysts Jan. 3, 1995
5270272 Sulfur removal from molecular-sieve catalyst Dec. 14, 1993
5212302 Process for producing epsilon-caprolactam and activating solid catalysts therefor May. 18, 1993
5101052 Molybdenum recovery Mar. 31, 1992
5093509 Removal of trace quantities of molybdenum Mar. 3, 1992
4977117 Process of presulfurizing and controlling the activity of catalyst for treating hydrocarbons Dec. 11, 1990
4744962 Process for the reduction of ammonia in regeneration zone off gas by select addition of NO.sub.x to the regeneration zone or to the regeneration zone off gas May. 17, 1988
4742032 Neutralization of spent solid phosphoric acid catalyst May. 3, 1988
4740491 Process for passivating high activity transition metal sulfide catalysts Apr. 26, 1988
4714689 Process for the regeneration of catalysts for the gas-phase reduction of aromatic nitro compounds Dec. 22, 1987
4650779 Regeneration of pillared clays with gas containing a small amount of ammonia Mar. 17, 1987
4618593 Process for improving activity of tellurium containing metal oxide catalysts Oct. 21, 1986
4569754 Selective vaporization process Feb. 11, 1986
4551231 Ammonia contacting to passivate metals deposited on a cracking catalyst during reduced crude processing Nov. 5, 1985
4550090 Regeneration of ZSM-5 type catalyst with a source of alkali or alkaline earth metal cations or ammonia Oct. 29, 1985
4536483 Process for regeneration of iron-antimony metallic oxide catalysts Aug. 20, 1985
4388279 Recovery of metal values from organic reaction products Jun. 14, 1983
4192771 Process for dispersal and redispersal of platinum group metals comprising sulphiding in a stream of inert gas Mar. 11, 1980
4070305 Process for regenerating catalyst Jan. 24, 1978
4043938 Methods for reactivating zeolites Aug. 23, 1977
4002575 Rejuvenation of supported group VIII metal catalysts Jan. 11, 1977

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