摘要:
Catalysts containing iron, molybdenum, bismuth and nickel, cobalt, magnesium, zinc, cadmium, calcium or beryllium have been found to give especially large volumes of acrylonitrile or methacrylonitrile in a given time when manganese, antimony, thorium, zirconium, yttrium or mixtures thereof are incorporated into the catalyst.
摘要:
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 invention, an element selected from germanium, cerium, thorium, manganese, niobium, chromium, praseodymium, yttrium, zirconium, ruthenium, gallium, tin, indium, copper, lanthanum, tantalum or tungsten. These catalysts may also contain certain elements that further enhance the desirability of the oxidation process.
摘要:
Catalysts containing iron, molybdenum, bismuth and nickel, cobalt, magnesium, zinc, cadmium, calcium or beryllium have been found to give especially large volumes of acrylonitrile or methacrylonitrile in a given time when manganese, antimony, thorium, zirconium, yttrium or mixtures thereof are incorporated into the catalyst.
摘要:
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 invention, an element selected from germanium, cerium, thorium, manganese, niobium, chromium, praseodymium, yttrium, zirconium, ruthenium, gallium, tin, indium, copper, lanthanum, tantalum or tungsten. These catalysts may also contain certain elements that further enhance the desirability of the oxidation process.
摘要:
Catalysts containing iron, molybdenum, bismuth and nickel, cobalt, magnesium, zinc, cadmium, calcium or beryllium have been found to give especially large volumes of acrylonitrile or methacrylonitrile in a given time when manganese, antimony, thorium, zirconium, yttrium or mixtures thereof are incorporated into the catalyst.
摘要:
The process comprises the vapor phase oxidation of lower molecular weight olefins to the corresponding unsaturated aldehydes and unsaturated carboxylic acids in the presence of a catalyst comprising the oxides of iron, bismuth, molybdenum and at least one element of the Group II elements as essential components, and optionally the oxides of phosphorus, arsenic and an alkali metal.
摘要:
Catalysts containing a rare earth, tantalum or niobium plus iron, bismuth and molybdenum and at least one element of nickel, cobalt, magnesium, zinc, cadmium or calcium are especially effective for the ammoxidation of olefins.
摘要:
The present invention is a process for the oxidation of olefins to unsaturated aldehydes and acids using a catalyst containing antimony, iron, bismuth, molybdenum plus at least one of nickel, cobalt, magnesium, zinc, cadmium or calcium within certain compositional limits. These catalysts may also contain certain elements that further enhance the desirability of the oxidation process.
摘要:
Monoolefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and a molecular oxygen-containing gas in the presence of a catalyst containing the oxides of iron, bismuth, molybdenum, and cobalt or nickel or both, and optionally an oxide of at least one element selected from the group consisting of the alkali metals, rare earth metals, tantalum and niobium, and optionally one or more of the oxides of the elements selected from the group consisting of phosphorus and arsenic.