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Class Information
Number: 502/31
Name: Catalyst, solid sorbent, or support therefor: product or process of making > Regenerating or rehabilitating catalyst or sorbent > Treating with a liquid or treating in a liquid phase, including dissolved or suspended > Organic liquid > Hydrocarbon
Description: Process in which the liquid used comprises a compound composed of only hydrogen and carbon.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
5010047 Recovery of double metal cyanide complex catalyst from a polymer Apr. 23, 1991
5002914 Process for purifying and recovering the contaminated catalyst solution arising in the carbonylation of methanol and/or methyl acetate and/or dimethyl ether Mar. 26, 1991
4992614 Reactivation of partially deactivated catalyst employing ultrasonic energy Feb. 12, 1991
4988652 Process for recovering catalyst for use in preparing .alpha.-(4-isobutylphenyl)propionic acid Jan. 29, 1991
4983558 Process for presulfurizing a hydrocarbon treatment catalyst Jan. 8, 1991
4983559 Process for presulfurizing with phosphorous and/or halogen additive Jan. 8, 1991
4982043 Organic solvent treatment for catalysts and olefin dimerization processes therewith Jan. 1, 1991
4977117 Process of presulfurizing and controlling the activity of catalyst for treating hydrocarbons Dec. 11, 1990
4973743 Process for the production of polybasic acid esters with recovery of boron trifluoride Nov. 27, 1990
4914256 Reactivation of partially deactivated catalyst employing ultrasonic energy Apr. 3, 1990
4914237 Alkylation of toluenediamine and para-phenylenediamine with isobutylene in the presence of acidic, crystalline molecular sieves Apr. 3, 1990
4912071 Method of unloading catalyst Mar. 27, 1990
4908341 Method for reactivating spent catalyst by contact with one or more aromatic compounds Mar. 13, 1990
4904369 Residual oil conversion process Feb. 27, 1990
4902662 Processes for preparing and regenerating a copper containing mercury collecting solid mass Feb. 20, 1990
4892646 Method for treating dewaxing catalysts Jan. 9, 1990
4863884 Method for rejuvenating used catalysts Sep. 5, 1989
4824814 Catalyst treatment and process for using treated catalyst Apr. 25, 1989
4820671 Regeneration of an organouranium catalyst Apr. 11, 1989
4800186 Regeneration of fluorocarbonsulfonic acid catalysts Jan. 24, 1989
4746459 Self-dispersing tin oxide sols May. 24, 1988
4743358 Method for suppressing the harmful effects of metal contaminants on hydrocarbon conversion catalysts using a strontium colloid system May. 10, 1988
4719195 Process for presulfurizing a hydrogen treatment catalyst Jan. 12, 1988
4715948 Improving the life of a catalyst used to process hydrocarbon containing feed streams Dec. 29, 1987
4698321 Regeneration of HDS catalysts Oct. 6, 1987
4686775 Absorbent drying method by contacting with a hydrocarbon Aug. 18, 1987
4659682 Recovery of noble metal values from carbonylation residues Apr. 21, 1987
4657745 Value recovery from spent alumina-base catalyst Apr. 14, 1987
4632748 Cracking process Dec. 30, 1986
4584283 Cracking catalyst restoration with aluminum compounds Apr. 22, 1986
4559313 Removal of inorganic contaminants from catalysts Dec. 17, 1985
4550090 Regeneration of ZSM-5 type catalyst with a source of alkali or alkaline earth metal cations or ammonia Oct. 29, 1985
4530917 Process of presulfurizing catalysts for hydrocarbons treatment Jul. 23, 1985
4525267 Process for hydrocracking hydrocarbons with hydrotreatment-regeneration of spent catalyst Jun. 25, 1985
4507398 Metal passivation additive Mar. 26, 1985
4483765 Oil-dispersible antimony oxide sol dispersed as an oil in water emulsion into a cracking feed Nov. 20, 1984
4476237 Separation of tars from carbonylation reaction mixtures Oct. 9, 1984
4476238 Separation of tars from carbonylation reaction mixtures Oct. 9, 1984
4459366 Passivating metals on cracking catalysts Jul. 10, 1984
4459365 Method of recovering a catalytic metal Jul. 10, 1984
4444987 Method of removal of COS from propylene Apr. 24, 1984
4387056 Process for separating zero-valent nickel species from divalent nickel species Jun. 7, 1983
4359402 Monoolefin catalysts and method for the preparation thereof Nov. 16, 1982
4353810 Minimizing iron in recovered oxidation catalyst material in DMT process Oct. 12, 1982
4350668 Recovery of cobalt component from 3-pentenoic ester synthesis Sep. 21, 1982
4337144 Aluminum passivation process Jun. 29, 1982
4308414 Oligomerizing alpha-olefins with a heterogeneous catalyst Dec. 29, 1981
4306086 Hydroformylation catalyst system and processes Dec. 15, 1981
4216083 Process for complete or selective removal of salts from aqueous solution Aug. 5, 1980
4207204 Passivation of metals on cracking catalyst with a crude antimony tris(O,O-dihydrocarbyl phosphorodithioate) Jun. 10, 1980

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