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| Number | Title | Issue Date |
| 7321058 | Method for producing acrolein and/or acrylic acid Acrolein and/or acrylic acid are prepared from propane and/or propene by a process comprising the following steps: (a) separation of propane and/or propene from a propane- and/or propene-containing gas mixture by absorption in an absorbent, (b) separation of the pro... | 01/22/2008 |
| 6946422 | Preparation of mixed metal oxide catalysts for catalytic oxidation of olefins to unsaturated aldehydes A process for making a catalyst containing oxides of molybdenum, bismuth, iron, cesium and, optionally, other metals, such as tungsten, cobalt, nickel, antimony, magnesium, zinc, phosphorus, potassium, rubidium, thallium, manganese, barium, chromium, boron, sulfur, ... | 09/20/2005 |
| 5866737 | Oxidation and oxydehydrogenation of hydrocarbons in the fluidized bed A process for the oxidation and oxidative dehydrogenation of hydrocarbons, in particular ethylbenzene, to form corresponding oxidized or olefinically unsaturated compounds, in particular styrene, over an oxygen-conferring, oxygen-regenerable catalyst invo... | 02/02/1999 |
| 4827071 | Ceramic membrane and use thereof for hydrocarbon conversion The invention relates to a novel mixed ion and electron conducting catalytic ceramic membrane and to its use in hydrocarbon oxidation and or hydrogenation processes, the membrane consists of two layers, layer 1 which is an impervious mixed ion and electro... | 05/02/1989 |
| 4618593 | Process for improving activity of tellurium containing metal oxide catalysts A regeneration process for tellurium-containing metal oxide catalysts used in the process for oxidation, ammoxidation or oxidative dehydrogenation of organic compounds at a temperature of about 300° C. to about 600° C. The process can be effectively app... | 10/21/1986 |
| 4547615 | Process for producing conjugated diolefins A process for producing a conjugated diolefin, which comprises oxidatively dehydrogenating a monoolefin having at least 4 carbon atoms in the vapor phase with molecular oxygen to form the corresponding conjugated diolefin, said reaction being carried out ... | 10/15/1985 |
| 4536483 | Process for regeneration of iron-antimony metallic oxide catalysts Iron-antimony metallic oxide catalysts which have become deactivated after being used for the production of aldehydes, acids, nitriles, or dienes through oxidation, ammoxidation, or oxidative dehydrogenation of organic compounds in fluidized-bed reactors ... | 08/20/1985 |
| 4423281 | Process for producing conjugated diolefins In a process for producing a conjugated diolefin which comprises oxidatively dehydrogenating a monolefin having at least 4 carbon atoms in the vapor phase with molecular oxygen to form the corresponding conjugated diolefin; the improvement wherein the oxi... | 12/27/1983 |
| 4419267 | Process for regenerating antimony containing oxide catalyst comprising an aqueous ammonia impregnation A process for regenerating an antimony containing metal oxide catalyst which comprises impregnating aqueous ammonia in an amount corresponding to the pore volume of the catalyst, to a metal oxide catalyst whose activity has been deteriorated, the catalyst... | 12/06/1983 |
| 4413155 | Ammoxidation of olefins with novel antimonate catalysts Oxide complex catalysts comprising Fe-Sb-Bi-Ox promoted with a wide variety of different elements have been found to be especially useful in the ammoxidation of olefins to nitriles such as acrylonitrile and methacrylonitrile. Not only are the d... | 11/01/1983 |
| 4336409 | Process for producing conjugated diolefins In a process for producing a conjugated diolefin which comprises oxidatively dehydrogenating a monolefin having at least 4 carbon atoms in the vapor phase with molecular oxygen to form the corresponding conjugated diolefin; the improvement wherein the oxi... | 06/22/1982 |
| 4330429 | Process for regenerating an antimony containing oxide catalyst A process for regenerating a deteriorated antimony containing oxide catalyst comprising as essential components of (i) antimony and (ii) at least one metal element selected from the group consisting of iron, cobalt, nickel, manganese, uranium, cerium, tin... | 05/18/1982 |
| 4317747 | Promoted U-Sb-oxide catalysts Certain multiply promoted U-Sb-oxides are superior catalysts for the ammoxidation of olefins to the corresponding unsaturated nitriles, the selective oxidation of olefins to unsaturated aldehydes and acids, and the oxyde-hydrogenation of olefins to diolef... | 03/02/1982 |
| 4311611 | Process for regenerating an antimony containing oxide catalyst A process for regenerating a deteriorated antimony containing oxide catalyst comprising as essential components of (i) antimony and (ii) at least one metal element selected from the group consisting of iron, cobalt, nickel, manganese, uranium, cerium, tin... | 01/19/1982 |
| 4174354 | Oxidative dehydrogenation using chromium-containing catalysts Catalysts containing at least nickel or cobalt, chromium, bismuth and molybdenum have been found to be especially useful for the ammoxidation of olefins, the oxidation of olefins and the oxidative dehydrogenation of olefins.... | 11/13/1979 |
| 4111985 | 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 a ... | 09/05/1978 |
| 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 |
| 4000176 | Process for simultaneously producing methacrylo-nitrile and butadiene by vapor-phase catalytic oxidation of mixed butenes This invention provides a process for simultaneously producing methacrylonitrile and butdiene which comprises contacting a mixture of mixed butenes containing isobutene and n-butenes, oxygen and ammonia as the substantial reactants with a catalyst contain... | 12/28/1976 |
| 3998867 | Process for the simultaneous preparation of methacrylonitrile and 1,3-butadiene This invention relates to a process for simultaneously preparing methacrylonitrile and 1,3-butadiene from a mixture of butanes and butenes (hereinafter referred to as a mixed butane-butene) consisting of isobutane, n-butane, isobutylene, 1-butene, cis-2-b... | 12/21/1976 |
| 3972920 | Process for producing unsaturated aldehydes, unsaturated fatty acids or conjugated dienes Methacrolein is produced by catalytically oxidizing t-butyl alcohol with oxygen by using a catalyst system of MoSbBiFeNi-alkali. Propylene or isobutylene can also be catalytically oxidized with the same catalyst system to produce acrolein or methacrolein.... | 08/03/1976 |
| 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 |
| 3966823 | Process for preparing 1,3-butadiene and methacrolein simultaneously The present invention relates to a production of 1,3-butadiene and methacrolein simultaneously by catalytic oxidation of mixed butenes composed of butene-1, cis-2-butene, trans-2-butene (unless otherwise mentioned, these three butenes will referred to as ... | 06/29/1976 |
| 3956181 | Oxidation catalyst Catalysts containing at least nickel or cobalt, chromium, bismuth and molybdenum have been found to be especially useful for the ammoxidation of olefins, the oxidation of olefins and the oxidative dehydrogenation of olefins.... | 05/11/1976 |
| 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 |
