Abstract:
ACRYLIC ESTERS AND METHACRYLIC ESTERS ARE FORMED DIRECTLY FROM THE ALDEHYDE BY REACTING ACROLIEN OR METHACROLEIN WITH MOLECULAR OXYGEN AND AN ALCOHOL IN THE PRESENCE OF AN OXIDATION CATALYST UNDER THE CONDITIONS NORMALLY ASSOCIATED WITH THE REACTION OF THE ALDEHYDE TO THE ACID.
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:
The present invention is catalysts that contain oxides or oxide complexes of at least tin, tungsten, vanadium and molybdenum. Optionally, the catalysts may also contain the oxides of iron, nickel, cobalt, zinc, manganese, magnesium or copper. These catalysts are very useful for the oxidation of acrolein to acrylic acid, the oxidation of butadiene to maleic anhydride and other oxidation reactions.
Abstract:
A process for the catalytic oxidation of olefins to unsaturated aldehydes and acids and the ammoxidation of olefins to unsaturated nitriles in which the catalyst comprises a promoted, reduced, antimony oxide-molybdenum oxide-containing catalyst.