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| Number | Title | Issue Date |
| 4053533 | Oxidation of acetylenic impurities with copper manganite catalyst Acetylenic compounds are selectively removed from hydrocarbon mixtures containing same by oxidation in the presence of a solid copper-manganese-oxygen catalyst. In one embodiment, acetylenic compounds are selectively removed from a conjugated diene mixtur... | 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 |
| 4049583 | Metal oxide catalytic compositions having perovskite crystal structures and containing metals of the platinum group Metal oxides of the type [A11-x A2x ]B'1-y Mey ]O3 having perovskite-type crystal structures in which A1 and A2 are each one or more mono-, di-, or trivalent metals ... | 09/20/1977 |
| 4045331 | Demetallization and desulfurization of petroleum feed-stocks with manganese on alumina catalysts A novel process for the demetallization of petroleum feedstocks comprising contacting a petroleum feedstock at elevated pressures and temperatures, and preferably in the presence of hydrogen, with a catalyst comprising a manganese component composited wit... | 08/30/1977 |
| 4039481 | Catalyst carrier and method of manufacturing same The present invention relates to a catalyst carrier characterized by the fact that it comprises a substance which promotes a transition to -alumina, which substance is located near the surface of a carrier composed mainly of alumina and which carri... | 08/02/1977 |
| 4018829 | Method for making -hydroxy-isobutyramide from acetone cyanohydrin In a method for making -hydroxy-isobutyramide by the hydration of acetone cyanohydrin in the presence of manganese dioxide as a catalyst, the improvement wherein acetone is added to the reaction mixture.... | 04/19/1977 |
| 4006105 | NOx reduction catalyst for internal combustion engine emission control A system for reducing NOx gases found in the exhaust stream of the internal combustion engine is provided which includes an internal combustion engine having associated therewith a means for supplying fuel and oxygen to the engine, a manifold s... | 02/01/1977 |
| 4005049 | Silver catalysts Silver/transition metal catalysts are made by calcining the polysilver salt of a polycarboxylic acid and at least one transition metal salt of an organic polycarboxylic acid at temperatures from 200°-500° C., and oxidizing the said calcined salts with o... | 01/25/1977 |
| 4003854 | Catalyst of supported vanadium oxide and manganese oxide and method of producing same The catalyst for selective removal of nitrogen oxides from waste gases is actually vanadium oxide and manganese oxide applied to an inert carrier. Said metal oxides are taken in the weight ratio V2 O5 /Mn2 O3 of... | 01/18/1977 |
| 3998760 | Modified zinc ferrite oxidative dehydrogenation catalysts Improved oxidative dehydrogenation catalysts are prepared by modifying a zinc ferrite oxidative dehydrogenation catalyst with magnesium oxide. The resulting catalyst compositions exhibit higher conversions and yields.... | 12/21/1976 |
| 3997440 | Polluted water purification Organically polluted waters are purified by contacting with a solid copper-manganese-oxygen catalyst promoted with at least one Group II metal under oxidizing conditions. In one preferred embodiment, an aqueous stream obtained from the effluent of an oxid... | 12/14/1976 |
| 3985683 | Catalyst for reducing the toxic contaminants of combustion engine exhaust gas Catalyst reducing the toxic contaminants of exhaust gas of combustion engines. The catalyst, which consists essentially of a ceramic honey comb structure as carrier and a mixture of copper, nickel and manganese oxides as catalytically active ingredients, ... | 10/12/1976 |
| 3985681 | Catalyst for the oxidation of ammonia There are provided oxidation catalysts having a specific surface ranging m 12 to 100 m2 /g and containing as their main constituent either an oxide of cobalt or an oxide of bismuth. The catalysts further contain a promoter in the form of a rar... | 10/12/1976 |
| 3984353 | Method for preparing oxygen compounds of antimony with metals This invention relates to the method for preparing oxygen compounds of antimony with metals. According to the invention, the method for preparing oxygen compounds of antimony with metals consists in oxidation of antimony trioxide by hydrogen peroxide at a... | 10/05/1976 |
| 3983072 | Exhaust catalyst Engine exhaust gas is rendered less noxious by contact with a catalyst consisting essentially of manganese oxide and palladium on a suitable support such as alumina. Optionally, the support may be precoated with a rare earth metal oxide to improve catalys... | 09/28/1976 |
| 3974229 | Preparation of ortho-alkylated phenols There are provided alkylation catalysts comprising magnesium oxide mixed with and bonded by manganese oxides. These are used in processes for the vapor phase ortho-alkylation of phenols with an alcohol. The present catalysts are advantageous in that they ... | 08/10/1976 |
| 3972829 | Method of depositing a catalytically active metallic component on a carrier material A method is disclosed for effecting a uniform distribution of catalytically active metallic component over substantially all of the available surface area of a carrier material in a crystallite size of less than about 25 Angstroms. The innovative feature ... | 08/03/1976 |
| 3972836 | Preparation of ortho-alkylated phenols There are provided alkylation catalysts comprising magnesium oxide mixed with and bonded by manganese oxides. These are used in processes for the vapor phase ortho-alkylation of phenols with an alcohol. The present catalysts are advantageous in that they ... | 08/03/1976 |
| 3966639 | Amphora aggregates Hard, rounded aggregates are produced by preparing droplets of a slurry consisting of suspending liquid containing distinct particles of a solid and dropping the droplets of the slurry onto a bed of particles under conditions where the suspending liquid o... | 06/29/1976 |
| 3965045 | Iron catalyst An improved iron catalyst is provided which is useful in catalytically synthesizing hydrocarbons from carbon monoxide and hydrogen. The catalyst comprises a calcined and reduced mixture of magnetite and alumina derived from water hydrolysis of aluminum al... | 06/22/1976 |
| 3960971 | Process for preparing allylic alcohols A vapor phase process for preparing allylic alcohols which comprises reacting an allylic ester of a lower alkyl carboxylic acid with a lower alkanol in the presence of a transesterification catalyst comprising magnesia.... | 06/01/1976 |
| 3957690 | Heterogeneous catalyst for oxidation of propylene into propylene oxide in the liquid phase and method for preparing it A heterogeneous catalyst for oxidation of propylene into propylene oxide in the liquid phase which is a carrier with active components supported thereon, the latter being oxides of scandium, yttrium, indium, gallium, thallium, or rare-earth elements of th... | 05/18/1976 |
| 3957691 | Catalyst for treating exhaust gas from engine vehicles A catalyst for treating exhaust gas from engine vehicles which comprises a intered substance composed of ferric oxide and at least one metallic oxide and forming at least in part a spinel crystal structure. This catalyst can be strengthened by adding alumi... | 05/18/1976 |
| 3951869 | Modified zinc ferrite oxidative dehydrogenation catalysts Improved oxidative dehydrogenation catalysts are prepared by modifying a zinc ferrite oxidative dehydrogenation catalyst with manganese oxide. The resulting catalyst compositions exhibit higher conversions and yields.... | 04/20/1976 |
| 3947380 | Oxidation catalyst A class of ceramic mixed oxide, nonstoichiometric electrically neutral rare-earth-type catalyst containing rare-earth-type elements and elements of the first transition metal series and optionally the alkaline earth metals. The catalyst has the following ... | 03/30/1976 |
| 3945947 | Catalyst for purifying exhaust gases A multi-component catalyst composition prepared by combining (A) noble metal catalyst elements effective for oxidizing carbon monoxide and hydrocarbons with (B) catalyst elements effective for the same purpose but containing no noble metal. The multi-comp... | 03/23/1976 |
| 3939103 | Catalytic product for the oxidative destruction of gaseous organic compounds and method for their preparation A catalyst for the oxidative destruction of gaseous organic compounds comprises 50-80% of a mixture of active carbonates and oxides, i.e., 50-85% of manganese oxides, 0-30% of manganous carbonate, 3-10% of cupric oxide, and 0-15% of nickel oxides; and 50-... | 02/17/1976 |
| 3937669 | Catalyst for methylation of phenols Vapor phase methylation of phenols with methanol in contact with a vanadium oxide catalyst which may additionally contain iron oxide and at least one other oxide of magnesium, titanium, manganese, beryllium or boron.... | 02/10/1976 |
