Patents for B01J 38 - Regeneration or reactivation of catalysts, in general (7,157)
02/1989
02/07/1989US4803065 Production process of chlorine
02/07/1989CA1249847A1 Method for dehydrogenating hydrocarbons
01/1989
01/24/1989US4800186 Solvent mixture to swell, dilute and dissolve deactivating compounds
01/24/1989US4800185 Demetallization
01/18/1989EP0299650A2 Regeneration of fluid catalytic cracking catalysts
01/04/1989EP0297750A2 Process of regeneration and reactivation of reforming catalysts while passivating iron scale carryover from the regeneration circuit to the reactor
01/03/1989US4795726 Removal of carbonaceous material and contaminating metal under controlled conditions
12/1988
12/22/1988DE3718352A1 Regeneration of used hydrogenation catalysts
12/21/1988EP0295870A2 A catalytic reforming process involving regeneration and reactivation of catalyst avoiding iron scale carryover from the regeneration circuit to the reactor
12/14/1988EP0294715A2 Process for testing the efficacy of a catalyst
12/14/1988EP0294448A1 A process for regenerating a monofunctional large-pore zeolite catalyst having high selectivity for paraffin dehydrocyclization.
12/13/1988US4791080 Oxidative catalyst regeneration
11/1988
11/29/1988US4787968 Catalyst demetallization and process for using demetallized catalyst
11/22/1988US4786622 Regeneration of fluid solid particles and separation of solid particles from combustion product flue gases
11/22/1988US4786621 Process for recovery of cobalt and manganese for oxidation residue incinerator ash
11/16/1988CN87103441A Reactivation of noble metal containing zeolite catalysts
11/08/1988US4783566 Hydrocarbon conversion process
11/02/1988EP0288892A2 Process for the preparation of multiple-nucleus aromatic polyamines
11/01/1988CA1243821A1 Vented riser
10/1988
10/25/1988CA1243651A1 Method for reclaiming a heat-damaged zeolite catalyst
10/17/1988EP0269718A4 Catalytic vapor phase process for producing dihydrocarbyl carbonates.
10/12/1988EP0285715A1 Reactivitation of noble metal containing zeolite catalysts
10/11/1988US4777156 Regeneration of methanol/methyl ether conversion catalysts
10/11/1988CA1242985A1 Method for controlling fluidized catalytic cracker regenerator temperature and velocity with carbon dioxide
10/06/1988DE3708625A1 Work up and regeneration of deactivated P-Mo-V-containing heteropolyacid catalysts
10/05/1988EP0284872A1 Reactivation and stabilisation of the activity of heteropolyacid catalysts
10/04/1988CA1242682A1 Removal of inorganic contaminants from catalysts
09/1988
09/28/1988EP0283603A1 Redispersion of agglomerated noble metals on zeolite catalysts
09/22/1988WO1988006917A1 Activity stabilization and reactivation of heteropolyacid catalysts
09/21/1988EP0283343A1 Process for activating a catalyst for the isomerization of normal paraffins
09/21/1988CN87101810A Redispersion of agglomerated noble metals on zeolite catalysts
09/20/1988US4772378 Process for thermal cracking of heavy oil
09/08/1988DE3805982A1 Process for regenerating zeolite-based hydrocarbon-conversion catalysts
09/06/1988US4769219 Catalyst rejuvenation vessel assembly
09/06/1988US4769128 Regeneration and reactivation of reforming catalysts avoiding iron scale carryover from the regenerator circuit to the reactors
08/1988
08/02/1988US4761515 Vaporization, heat exchanging
07/1988
07/20/1988EP0274924A1 Method for separating extruded materials with or without defects
07/20/1988EP0274479A1 Process for the separation and isolation of shaped catalyst-type particles by length.
07/20/1988CN87106904A Process for regenerating carbonylation catalyst solution to remove corrosion metals
07/12/1988US4757038 Regeneration of iron-antimony metallic oxide catalysts
07/06/1988EP0273592A1 Process for continuous dewaxing of hydrocarbon oils
07/06/1988CN87104325A Technology for cirnlating use of catalyst
07/05/1988CA1238920A1 Recovery process
06/1988
06/30/1988WO1988004574A1 A process for regenerating a monofunctional large-pore zeolite catalyst having high selectivity for paraffin dehydrocyclization
06/21/1988US4752595 Catalyst pretreatment for regenerated noble metal on zeolite catalyst
06/15/1988EP0271348A2 A catalytic hydrocarbon conversion process using a strontium-containing colloid system to mitigate adverse effects of metal contaminants
06/15/1988EP0271161A2 Process for purifying oxalic acid diamide
06/15/1988CN87212197U Sample cup for catalyst aging treatment
06/14/1988US4751210 Treatment with mixture of air and water vapor; heating
06/08/1988EP0269718A1 Catalytic vapor phase process for producing dihydrocarbyl carbonates.
06/07/1988CA1237712A1 Metal passivation additive
06/01/1988EP0269044A2 Process for the recuperation of pyridine or methyl pyridine or mixture thereof from a reaction mixture containing butanedicarboxylic acid methyl esters
05/1988
05/25/1988EP0268201A1 Method for regeneration of oxidation catalyst
05/24/1988US4746640 Solvent extraction, precipitation
05/24/1988CA1236981A2 Recovery of rhenium from tertiary phosphine oxide- rhenium complexes
05/10/1988US4743358 Method for suppressing the harmful effects of metal contaminants on hydrocarbon conversion catalysts using a strontium colloid system
05/03/1988CA1236073A1 Process for the in situ fluorination of a catalyst
04/1988
04/27/1988EP0265140A1 Process for regenerating a carbonylation catalyst solution to remove corrosion metals
04/27/1988CN87106236A Inactivation of metal to prevent cracking catalyst being poluted
04/26/1988US4740491 Process for passivating high activity transition metal sulfide catalysts
04/19/1988US4738948 Cobalt-ruthenium catalysts for Fischer-Tropsch synthesis and process for their preparation
04/19/1988US4738939 Regeneration and reactivation of reforming catalysts while passivating iron scale carryover from the regenerator circuit to the reactors
04/19/1988CA1235429A1 Manufacture of butanedicarboxylic acid esters
04/06/1988EP0263005A1 Oxidative dehydrogenation of saturated organic compounds in the presence of regenerated catalysts
03/1988
03/23/1988EP0260580A2 Passivation of metal contaminated cracking catalysts
03/23/1988CN87104744A Production process of chlorine
03/22/1988US4732737 Hydrogenation catalysts
03/15/1988CA1234135A1 Recovery of zerovalent nickel complexes
03/15/1988CA1234129A1 Vapor phase catalytic oxidation of butane to maleic anhydride
03/09/1988EP0259115A2 Process and apparatus to reduce NOx emissions from a fluid catalytic cracking unit
03/09/1988CN87105794A The regenerative method for the catalyst of hydrocarbon hydroconversion
03/08/1988US4729975 Grids, abrasives, fluidization
03/02/1988EP0258137A1 Process for the regeneration of a hydrocarbon hydroconversion catalyst
02/1988
02/16/1988CA1232896A1 Reactivation of catalysts useful for the manufacture of maleic anhydride with alkyl esters of orthophosphoric acids or phosphoryl halides
02/10/1988EP0255673A2 Process for the recovery of rhodium from aqueous solutions containing rhodium complex compounds
02/10/1988EP0255640A1 Regenerative, catalytic oxydehydrogenation of isobutyric acid or of an ester thereof
01/1988
01/26/1988US4721826 Process for restoring or maintaining the activity of heterogeneous catalysts for reactions at normal and low pressures
01/19/1988US4720473 Production of improved catalyst-type particles using length and density grading
01/13/1988EP0252656A1 Improved catalyst demetallisation and process for using a demetallised catalyst
01/12/1988US4719189 Regeneration, oxidation, reduction
01/07/1988EP0251731A2 Production of chlorine
01/05/1988US4717696 Regeneration of a supported palladium catalyst used in the conversion of cyanohydrins to their aldoses
12/1987
12/23/1987EP0250103A1 Processfor recovering noble metal
12/22/1987US4714689 Mixture of oxygen and nitrogen compound
12/22/1987US4714688 Process for regenerating used catalysts by means of hydrogen peroxide aqueous solution stabilized with an organic compound
12/17/1987WO1987007601A1 Catalytic vapor phase process for producing dihydrocarbyl carbonates
12/16/1987CN86103921A Hydroformylation catalyst removal
12/09/1987EP0248358A2 Process to reduce the amount of copper salt in oxamide
11/1987
11/10/1987US4705908 Natural gas conversion process
11/10/1987US4705808 Process for treating a core halogenated strongly acidic cation exchange catalyst
11/04/1987EP0244014A2 Method for the regeneration of spent alumina-based catalysts
11/03/1987US4704497 Method for dehydrogenating hydrocarbons
11/03/1987CA1228846A1 Reclamation of a palladium-tin based electroless plating catalyst from the exhausted catalyst solution and accompanying rinse waters
10/1987
10/21/1987EP0242072A1 Preparation of cinnamate esters
10/21/1987EP0241509A1 A method of purifying exhaust fumes and a means for performing the method
10/20/1987US4701429 Catalyst regeneration with varying air flow to burn-off zone from drying zone through halogenation zone
10/14/1987EP0241310A2 Method for the dry regeneration of a catalyst
10/14/1987EP0241149A2 Value recovery from spent alumina-base catalysts
10/14/1987EP0240703A2 Process for the purification and recovery of the contaminated catalyst solution obtained in the carbonylation of methyl acetate and/or dimethyl ether
10/07/1987CN86101915A Process and apparatus for simultaneously regenerating and cooling fluidized particles
1 ... 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72