Matches 351 - 400 out of 518 < 1 2 3 4 5 6 7 8 9 10 11 >
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4329517 Process for production of mono- or di-ortho-methyl-substituted phenols by catalytic methylation and catalyst therefor  
In a process for producing a mono- or di-ortho-methyl-substituted phenol which comprises methylating a phenol having one or two ortho-hydrogens with methanol in the presence of a catalytic amount...
4326072 Ruthenium catalyzed hydrogenation of D-glucuronic acid  
A method for the synthesis of L-gulonic acid by catalytically hydrogenating D-glucuronic acid utilizing a ruthenium-based catalyst.
4324695 Catalyst compositions of transition metal carbonyl complexes intercalcated with lamellar materials  
Transition metal carbonyl clusters intercalated with lamellar material such as graphite or smectites are prepared by reacting an intercalate of a transition metal halide with carbon monoxide at...
4316944 Noble metal-chromium alloy catalysts and electrochemical cell  
A novel and improved noble metal-chromium alloy catalyst is disclosed with catalytic oxygen reduction activity at least twice that of the unalloyed noble metal. The noble metal-chromium alloy...
4313853 Process for forming highly dispersed metal on graphite  
A process for forming a dispersion of metal selected from the group consisting essentially of Ni, Co, Mo and mixtures thereof on graphite comprising heating a composite of said metal on graphite at...
4309392 Process for removing nitrogen oxides from a gas stream  
The invention herein is directed toward a process for the conversion of oxides of nitrogen to nitrogen gas by employing a reactant carbon fiber or inter host carbon material at a temperature of...
4295996 Catalysts for hydrocarbon treating processes  
A catalyst is provided which comprises a composition comprising a catalytic metal component, carbon and hydrogen deposited on a low surface area aluminum alloy powder support prepared by atomizing...
4277374 Ferritic stainless steel substrate for catalytic system  
A system comprising a ferritic stainless steel substrate having a tightly adherent oxide coating and a catalytic material thereupon. The ferritic stainless steel is of a chemistry which forms a...
4259262 Catalytic hydrogenation of unsaturated dinitriles  
The catalytic hydrogenation of an unsaturated dinitrile reactant of the formula ##STR1## wherein each R is an alkylene or an alkylidene radical, and each R' is an alkyl radical, is carried out in...
4242103 Cyclic two step process for production of methane from carbon monoxide  
Carbon monoxide-containing gas streams are passed over a catalyst capable of catalyzing the disproportionation of carbon monoxide so as to deposit a surface layer of active surface carbon on the...
4239653 Process for the preparation of non-pyrophoric palladium catalysts  
The present invention relates to a process for the preparation of non-pyrophoric catalyst having controlledparticle size and activity comprising suspending active charcoal of homogeneous pore...
4225531 Fluidization promoters  
The invention is directed to improving the quality of fluidization of fluidized solids and comprises the addition of fluidization promoters in particle form that have a smaller density and particle...
4212854 Method for purification of air containing carbon monoxide  
Method for removal of carbon monoxide from air wherein air to be purified is passed through a catalyst for promotion of oxidation of carbon monoxide consisting of a carrier including powdered...
4212824 Hydrogenation catalyst with improved metallic distribution, its preparation and use for the reduction of aromatic nitro compounds  
An iron-modified, platinum hydrogenation catalyst useful for the reduction of aromatic nitro compounds is provided. The catalyst, having improved distribution of the metallic components on an...
4206134 Ruthenium supported on manganese oxide as hydrocarbon synthesis catalysts in CO/H.sub.2 reactions  
An improved method is disclosed for the selective synthesis of low molecular weight olefins, particularly C 2 and C 3 olefins inclusive, which method comprises the steps of passing a CO and H 2 ...
4206135 Catalyst comprising nickel supported on tantalum oxide or niobium oxide and their use as hydrocarbon synthesis catalysts in CO/H.sub.2 reactions  
An improved method for the enhanced synthesis of paraffinic hydrocarbons with chain lengths of from 2 to 6 carbon atoms inclusive with reduced methane formation which method comprises the steps of...
4202934 Noble metal/vanadium alloy catalyst and method for making  
A novel catalyst comprises an alloy of a noble metal and vanadium. The catalyst is particularly useful in an electrochemical cell cathode electrode. The method for making the alloy involves...
4190605 Catalyst activation in oxidation process  
A noble metal catalyst, such as palladium, is activated by successive and sequential reactions with an alcohol, such as hydroxybenzyl alcohol, and oxygen or a gas containing oxygen in an aqueous,...
4189405 Intermetallic catalysts  
A catalyst comprising a substrate having deposited thereon a first coating containing a refractory metal oxide and having deposited upon the said oxide one or more intermetallic compounds of the...
4186110 Noble metal-refractory metal alloys as catalysts and method for making  
Finely divided noble metal-refractory metal alloys and methods for making them are disclosed. As catalysts these alloys have greater activity than a catalyst of the same unalloyed noble metal and...
4186112 Catalyst for reducing carbon monoxide with hydrogen  
Catalyst for reducing carbon monoxide by means of hydrogen so as to obtain a mixture consisting substantially of C 1 -C 4 -hydrocarbons. The catalyst is made by precipitating a salt of a...
4184983 Filter material for removal of ozone from the atmosphere  
Ozone, which may be an irritating factor present in the atmosphere, may be removed therefrom by utilizing, as a filter material, in masks a material comprising at least one metal or metal oxide...
4176051 Process for catalytically hydrocracking a heavy hydrocarbon oil  
A process for catalytically hydrocracking a heavy hydrocarbon oil containing at least 25 weight percent of hydrocarbon substances which will boil at a temperature of at least 524° C. and contain...
4163775 Process for the synthesis of ammonia using catalysts supported on graphite containing carbon  
Catalyst for the synthesis of ammonia from hydrogen comprises (1) as support on graphite containing carbon having (a) a basal plane surface area of at least 100 m 2/G (b) a ratio of BET surface...
4163750 Process for the hydrogenation of a vegetable oil  
This invention relates to the catalytic hydrogenation of edible oils of animal and vegetable origin. Catalytic hydrogenation according to the invention improves the keeping qualities of such edible...
4160745 Method of preparing highly active nickel catalysts and catalysts prepared by said method  
The instant invention relates to a method for preparing high activity supported nickel catalysts. The method comprises the deposition of nickel nitrate on a carrier, typically an inert inorganic...
4151190 Process for producing C.sub.2 -C.sub.4 hydrocarbons from carbon monoxide and hydrogen  
Hydrocarbons of two to four carbon atoms are prepared by an improved Fischer-Tropsch process, the improvement comprising the use of a catalyst comprising: (A) at least one material selected from...
4150246 Homologation of alkanols  
This invention provides an improved process for converting methanol into ethanol and ethanol precursors with higher efficiency than prior art methods. This invention further provides a novel...
4147725 Process for preparing aniline compounds from amides with rhodium  
A vapor-phase process for preparing aniline or a substituted aniline, the process comprising contacting vaporous benzamide or a vaporous substituted benzamide with a metal catalyst, is improved by...
4145314 Preparation of highly dispersed supported group VIII metal catalysts and the redispersion of sintered or agglomerated supported group VIII metal catalysts by the addition of phosphorus  
The instant invention relates to a method of preparing highly dispersed supported Group VIII metal catalysts. The instant invention further relates to the redispersion of sintered or agglomerated...
4136059 Method for producing highly dispersed catalytic platinum  
Method for the production of highly dispersed electrochemically active platinum particles having an average diameter below about 50 A for use in electrodes for fuel cells. Platinum particles are...
4122671 Hydrazine decomposition and other reactions  
This invention relates to the catalytic decomposition of hydrazine, catalysts useful for this decomposition and other reactions, and to reactions in hydrogen atmospheres generally using...
4122040 Platinum group metal catalyst  
Hydrogen transfer catalyst comprises (a) as support a graphite containing carbon having (1) a basal plane surface area of at least 100 m 2 /g, (2) a ratio of BET surface area to basal plane...
4111842 Process for the preparation of supported catalysts  
A process for preparing activated carbon supported catalysts by mixing an activated carbon support having acid surface groups with an aqueous solution containing one or more cations selected from...
4108891 Process for oxidation of monosaccharides  
Monosaccharides are oxidized by an oxygen-containing gas in the presence of a special palladium-carbon catalyst which is prepared by adsorbing palladium on active carbon at a temperature lower than...
4093559 Process for the preparation of a palladium catalyst  
A process for the preparation of a palladium catalyst for the oxacylation of olefins in the gaseous phase, which comprises impregnating a catalyst carrier with a solution of a palladium compound...
4090978 Electrocatalysts and a method for the preparation thereof  
Electrocatalysts which may be used in the preparation of electrodes for electrochemical cells such as fuel cells comprise a carbonaceous pyropolymer having the surface thereof impregnated with at...
4086224 Reduction process for making azo compound  
A process for preparing an alpha-hydroxyazoalkane of the formula ##STR1## wherein A is aryl or (R) 3 C and R, R 1 and R 2 are hydrogen, monovalent aromatic or monovalent aliphatic radicals with...
4082699 Method of preparing catalytic structures from colloidal platinum compounds and such catalytic structures  
This disclosure deals with novel supported platinum catalysts and methods of producing the same by the uniform deposition of colloidal meta-stable, and thus transient, platinum metal particles on...
4082652 Process for improved carbon-supported hydrodesulfurization catalysts  
An improved carbon-supported hydrodesulfurization catalyst is obtained when the support first has deposited thereon a molybdenum compound convertible to MoS 2 , said molybdenum compound is...
4066699 Process for the hydrogenation of nitrated paraffins using a palladium on carbon catalyst characterized by a low ash and a low halide content  
Nitrated hydrocarbons, such as nitroparaffins, are reduced to amines by use of palladium on a carbon catalyst characterized by low ash and low halide.
4054687 Method for making a fuel cell electrode  
A support material for platinum, platinum alloys, or other noble metal catalyst, is made from carbon particles by heat treating the carbon until it is at least partially graphitized, depositing a...
4052335 Catalyst for the production of gamma-butyrolactone and a method for preparing the catalyst  
A process for the liquid-phase hydrogenation of maleic anhydride to γ-butyrolactone in the presence of a catalyst composed of cobalt oxide and palladium on a support of silica.
4052336 Process for preparing noble metal catalysts  
The invention relates to a process for preparing active noble-metal catalysts on a carbon carrier. In particular, the process comprises adsorbing a salt of the catalytically active metal onto the...
4042615 Hydrocarbon synthesis from CO and H.sub.2 using Ni supported on a titanium oxide  
Nickel supported on TiO 2 , other titanium-containing oxides or mixtures of various titanium oxides results in a catalyst system which exhibits superior hydrocarbon synthesis characteristics. Such...
4035260 Process for hydrogenation catalysts of improved distribution of active components  
Reductive deposition of a platinum metal on a preformed porous carbon support provides increased intensity ratios of support/platinum metal as the average pore radius of the carbon support increases.
4033799 Ionic hydrogenolysis of Binor-S for use as a high energy fuel  
Ionic hydrogenolysis of Binor-S, a C 14 heptacyclic saturated hydrocarbon, yields a low melting point product containing predominantly hexacyclics and lesser amounts of pentacyclics....
4031137 Catalysts based on carbon supports and use in catalytic deoxidation process  
Carbon particulates comprising carbon black spheres and a carbon binder having large pores as well as desirable pore size distribution are disclosed which serve as catalyst supports. The support...
4031292 Method for the preparation of an electrocatalyst  
Electrocatalysts which may be used in the preparation of electrodes for electrochemical cells such as fuel cells comprising a refractory inorganic oxide having a carbonaceous pyropolymer forming at...
4029601 Novel oligomerization catalysts and their preparation  
Novel oligomerization catalysts comprising cobalt oxide on carbon in admixture with certain other catalyst supports, such as refractory oxides, i.e. alumina, silica alumina and molecular sieves and...
Matches 351 - 400 out of 518 < 1 2 3 4 5 6 7 8 9 10 11 >