Abstract:
Catalysts are provided which are useful in the oxidation of olefins to aldehydes and conjugated dienes and in ammoxidation of olefins to nitriles. The catalysts comprise the combined oxides of uranium and molybdenum and the combined oxides of uranium and molybdenum in combination with arsenic, bismuth, tin, vanadium, iron, nickel and cobalt.
Abstract:
Catalysts are provided which are useful in the oxidation of olefins to aldehydes and conjugated dienes and in ammoxidation of olefins to nitriles. The catalysts comprise the combined oxides of uranium and arsenic on a catalyst support and the combined oxides of uranium and arsenic promoted by molybdenum, boron, vanadium, tin, nickel, bismuth, chromium, iron, manganese, zinc, tungsten, antimony, cerium, cobalt or rhenium.
Abstract:
Very desirable oxidation catalysts are prepared by impregnating a catalytic oxide matrix containing at least cobalt and molybdenum, magnesium and molybdenum, nickel and mulybdenum, manganese and molybdenum with iron, bismuth, tellurium or a mixture thereof.
Abstract:
The instant application is related to a process for the oxidation of saturated hydrocarbons and substituted saturated hydrocarbons in a vapor phase reaction over an antimonycontaining oxidation catalyst in which the hydrocarbon in the presence of a minor quantity of an inorganic or organic halide, hydrogen chloride, hydrogen bromide or hydrogen iodide or of a halogen other than fluorine, is reacted with (a) oxygen, to form unsaturated aldehydes and acids or (b) oxygen and ammonia, to form unsaturated nitriles.
Abstract:
Catalysts are provided which are useful in the oxidation of olefins to aldehydes and conjugated dienes and in ammoxidation of olefins to nitriles. The catalysts comprise the combined oxides of uranium and arsenic on a catalyst support and the combined oxides of uranium and arsenic promoted by molybdenum, boron, vanadium, tin, nickel, bismuth, chromium, iron, manganese, zinc, tungsten, antimony, cerium, cobalt or rhenium.
Abstract:
Catalysts containing molybdenum, bismuth, iron and nickel, cobalt, magnesium, zinc, cadmium, manganese calcium or mixture thereof and an alkali metal or T1 are promoted by an element selected from antimony and tin to give highly desirable catalysts for the oxidative dehydrogenation of olefins of 4 to about 10 carbon atoms.
Abstract:
High per pass conversions to acrylonitrile and acrylic acid or methacrylonitrile and methacrylic acid and desirable commercial flexibility are realized by reacting propylene or isobutylene with molecular oxygen and about 0.1 to about 0.9 moles of ammonia per mole of olefin in the presence of two catalysts. The first catalyst is an ammoxidation catalyst, and the second catalyst is an oxidation catalyst.
Abstract:
Catalysts are provided which are useful in the oxidation of olefins to aldehydes and conjugated dienes and in ammoxidation of olefins to nitriles. The catalysts comprise the combined oxides of uranium and molybdenum and the combined oxides of uranium and molybdenum in combination with arsenic, bismuth, tin, vanadium, iron, nickel and cobalt.
Abstract:
A VAPOR PHASE CATALYTIC OXYDEHYDROGENATION PROCESS FOR THE CONVERSION OF A STREAM OF MIXED ISOMERIC ISOAMYLENES, METHYL BUTANOLS OR MIXTURES THEREOF TO ISOPRENE WITH RELATIVELY SHORT CONTACT TIMES AT A REACTOR TEMPERATURE IN THE RANGE OF 500*F. TO 1100*F. AT FROM 0.5 TO ABOUT 10 ATMOSPHERES PRESSURE. THE CATALYSTS COMPRISE AN ALKALI METAL AS AN ESSENTIAL CATALYTIC INGREDIENT.