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| Number | Title | Issue Date |
| 4082802 | Process for the preparation of aromatic secondary or tertiary amino compounds Aromatic secondary or tertiary amino compounds of the formula, ##STR1## wherein X is a hydrogen atom, a methyl group or a methoxygroup, and R is a C1 -C4 alkyl group, are produced by reacting hydrogen and an aromatic nitro compo... | 04/04/1978 |
| 4081408 | Catalyst composition A catalyst composition is provided which comprises a magnesium aluminate spinel having a surface area of greater than about 50 m2 /g, a total pore volume of greater than about 0.475 cc/g from about 50 to about 70 percent of the total pore volum... | 03/28/1978 |
| 4077913 | Catalyst This invention relates to a catalyst suitable for use in the process of a) the reduction of an oxide of nitrogen present in a gas containing nitrogen, and b) for the oxidation of carbon monoxide or one or more organic compounds present in a gas. The catal... | 03/07/1978 |
| 4062811 | Method for preparing desulfurization catalyst Desulfurization catalyst comprising an iron group metal and a Group VIB metal is modified by refluxing with an aqueous solution of an alkali or alkaline earth metal, or a transition metal. The pore size distribution of the catalyst is improved.... | 12/13/1977 |
| 4056490 | Dehydrogenation process and catalyst Magnesium chromite dehydrogenation catalyst are improved by preparation in oxygen deficient or essentially inert calcination atmospheres and in the presense of halogen, either singularly or in combination.... | 11/01/1977 |
| 4055513 | Perovskite catalysts and process for their preparation A high surface area perovskite catalyst comprises a perovskite containing at least one transition metal composited with a spinel-coated metal oxide support. The catalyst is prepared by forming a surface spinel on a metal oxide and subsequently co-impregna... | 10/25/1977 |
| 4053437 | Polyolefin catalyst and method for its preparation A new catalyst and a method of polymerizing olefins in which the catalyst is prepared by forming a mixture by dispersing on a finely divided, difficult to reduce, inorganic support of the class consisting of silica, alumina, thoria, zirconia, titania, mag... | 10/11/1977 |
| 4052418 | Preparation of maleic anhydride from four-carbon hydrocarbons Catalysts comprising the combined oxides of vanadium and at least one element selected from the group consisting of boron, niobium, tantalum, antimony, tungsten and chromium have been found to be especially effective in the oxidation of n-butane, n-butene... | 10/04/1977 |
| 4049582 | Method for producing a supported catalyst Improved methods for reducing the amounts of hydrocarbon, carbon monoxide and nitrogen oxides in the exhaust gases of internal combustion engines involving the use of catalysts comprising a major amount of crystalline magnesium aluminate spinel. Improved ... | 09/20/1977 |
| 4049579 | Dehydrogenation catalyst Magnesium chromites promoted with B, Si, Sn, Pb and Se have been found to be superior to chromia-alumina type dehydrogenation catalysts, for example, in the dehydrogenation of n-butane. The promoter is either added to the preformed magnesium chromite or i... | 09/20/1977 |
| 4042490 | Hydrocarbon upgrading process A process for converting mixtures of C6 to C30 n-paraffin and n-paraffin by-products to substantially pure n-paraffin which comprises catalytically hydrogenating the mixture at a temperature of from about 600° to 750° F. in the pre... | 08/16/1977 |
| 4042533 | Producing unsaturated aliphatic acids The present invention relates to a process for the production of unsaturated aliphatic acids and the catalyst therefor, by the vapor phase oxidation of the corresponding unsaturated aliphatic aldehydes with molecular oxygen, optionally in the presence of ... | 08/16/1977 |
| 4038215 | Dehydrogenation catalyst Magnesium chromites promoted with B, Si, Sn, Pb and Se have been found to be superior to chromia-alumina type dehydrogenation catalysts, for example, in the dehydrogenation of n-butane. The promoter is either added to the preformed magnesium chromite or i... | 07/26/1977 |
| 4035418 | Process for producing unsaturated aldehydes and unsaturated carboxylic acids An olefin having 4 carbon atoms or t-butyl alcohol is catalytically oxidized in the gas phase with molecular oxygen at 200° to 450° C to give the corresponding unsaturated aldehyde, unsaturated carboxylic acid and/or conjugated diene in the presence of ... | 07/12/1977 |
| 4026908 | Catalytic epoxidation process The present invention relates to a new process for the catalytic epoxidation of olefins which comprises reacting an olefin of the formula ##STR1## in which R1, R2, R3 and R4, which can be the same or differ... | 05/31/1977 |
| 4021427 | Oxidation of 1,3-butadiene to maleic anhydride using a catalyst containing Mo, Sb, V and either one or both of Li and Ce Maleic anhydride and acrylic acid are produced by the oxidation of 1,3-butadiene, n-butylenes, crotonaldehyde and furan with molecular oxygen in the vapor phase in the presence of a catalytic oxide of antimony, molybdenum, vanadium and lithium, cerium, or... | 05/03/1977 |
| 4014925 | Process for preparing methyl acrylate or mixtures of methyl acrylate and acrylic acid Methyl acrylate or a mixture of methyl acrylate with acrylic acid are prepared by passing through a fluidized bed of catalyst a gaseous mixture comprising acrolein, methanol and oxygen fed at the bottom of the catalytic bed. A further amount of methanol i... | 03/29/1977 |
| 4001317 | Process for the oxidation of olefins using catalysts containing various promoter elements The present invention is a process for the oxidation of olefins to unsaturated aldehydes and acids using a catalyst containing iron, bismuth, molybdenum plus at least one of nickel, cobalt, magnesium, zinc, cadmium or calcium and according to the inventio... | 01/04/1977 |
| 3998758 | Supported catalyst A novel supported catalyst is described. The catalyst contains (a) a ceramic sponge support having internal surfaces comprised of the walls of cavities randomly dispersed throughout the sponge support and the walls of intersticial passageways connecting s... | 12/21/1976 |
| 3996166 | Catalysts for conversion of olefins A composition active for the conversion of olefins comprising magnesium oxide and an olefin disproportionation catalyst in admixture.... | 12/07/1976 |
| 3987104 | Process for preparing saturated ketones and a catalyst for realizing the process An improved process for preparing ketones by contacting a mixture of an olefin and steam with a supported catalyst of tin oxide and molybdenum oxide on an inert, thermostable carrier is disclosed, wherein the supported catalyst contains at least one alkal... | 10/19/1976 |
| 3985641 | Catalytic cracking of alkanes Alkanes are catalytically cracked employing a catalyst comprising unpromoted calcium oxide or at least one alkaline earth oxide together with a promoting amount of an additional component. BACKGROUND The invention relates to a method for cracking alkanes. Cata... | 10/12/1976 |
| 3976599 | Oxidation catalyst A class of ceramic mixed oxide, nonstoichiometric electrically neutral, rare-earth-type catalyst containing rare-earth-type elements, elements of the first transition metal series and Zirconium, Tin or Thorium and optionally the alkaline earth metals. The... | 08/24/1976 |
| 3975302 | Supported catalyst for oxidizing methanol to formaldehyde and its manufacturing process Process for manufacturing a supported catalyst whose active phase contains mainly molybdenum and iron by impregnating a carrier with an aqueous solution of alkanolamine and a complex of the active phase elements, drying and thereafter roasting the impregn... | 08/17/1976 |
| 3969428 | Process for the production of conjugated diolefins A process for the production of conjugated diolefins having 4-6 carbon atoms from the corresponding monoolefins according to the oxidative dehydrogenation process wherein oxides of molybdenum, arsenic and an alkaline earth metal are used as catalyst. The ... | 07/13/1976 |
| 3968166 | Catalytic process for the preparation of acrolein A process for the preparation of acrolein by the vapor phase catalytic oxidation of propylene which comprises contacting propylene and oxygen with a catalyst composition comprising a catalyst system of the formula: Wherein X is one or more of Mg, Mn and Co, Y ... | 07/06/1976 |
| 3966790 | Compositions and methods for high temperature stable catalysts Catalysts having good high temperature stability which are particularly useful for selected high temperature reactions are disclosed as are methods for their preparation and use. The catalytically-active materials include platinum group metal deposited on... | 06/29/1976 |
| 3965044 | Method of metal chromite preparation Metal chromite dehydrogenation catalysts are made by preparing an aqueous solution of CrO3, dissolving a second metal compound, such as MgO, therein adding a reducing agent, precipitating a substantially insoluble oxide of Mg and Cr, recovering... | 06/22/1976 |
| 3960975 | Magnesium chromite dehydrogenation catalyst Magnesium chromites promoted with aluminum have been found to be superior to chromia-alumina type dehydrogenation catalysts, for example, in the dehydrogenation of n-butane. The aluminum is either added to the preformed magnesium chromite or is incorporat... | 06/01/1976 |
| 3960776 | Lithium promoted magnesium chromite dehydrogenation catalysts Magnesium chromite dehydrogenation catalysts are improved by incorporation therein up to about 10 % of an alkali metal. The effect of the addition of lithium is shown in the dehydrogenation of isopentane, n-butane and ethylbenzene.... | 06/01/1976 |
| 3956377 | Production of unsaturated acids from the corresponding aldehydes Coated catalysts having an inert support material with an outer surface and a coating of active catalyst containing tungsten, vanadium and molybdenum plus optionally one or more of Fe, Mn, Cu, Sn, Sb, Cr, Ce, U, Co, Ni, Zn, Mg or mixture thereof have been... | 05/11/1976 |
| 3954855 | Process for preparing acrylic acid A catalyst composition for preparing acrylic acid from acrolein, comprising a catalytic oxide on an inert porous carrier, said catalytic oxide having the composition of the formula Wherein Z is at least one alkaline earth metal atom selected from the group ... | 05/04/1976 |
| 3953413 | Supported chromium-containing catalyst and process of polymerizing 1-olefins A catalyst and the method of making same and a method of making polymers of 1-olefins with said catalyst in which the catalyst is prepared by dispersing on a finely divided, difficultly reducible, inorganic support of the nature of silica, alumina, thoria... | 04/27/1976 |
| 3951861 | Catalysts for the preparation of acrolein A catalytic process for the preparation of acrolein by the vapor phase oxidation of propylene which comprises contacting propylene and oxygen with a catalyst composition comprising a catalyst system of the formula: Moa Bib Fec ... | 04/20/1976 |
| 3932551 | Process for the preparation of diolefins from olefins Catalysts containing molybdenum, bismuth, iron and nickel, cobalt, magnesium, zinc, cadmium, manganese, calcium or mixture thereof are promoted by chromium, tellurium, germanium, tungsten, manganese, thorium, niobium, praseodymin, cerium, lanthanum, zinc ... | 01/13/1976 |
| 3931050 | Catalyst for purifying exhaust gas from vehicles A catalyst for purifying exhaust gas from vehicles comprises a monolithic carrier having a plurality of exhaust gas passages penetrating through the carrier, a layer of active refractory metallic oxide such as .gamma.-alumina, containing 1 to 20% by weigh... | 01/06/1976 |
