Manufacture of maleic anhydride from butane
AssigneeThe Standard Oil Company
InventorsRobert K. Grasselli, Dev D. Suresh, Robert C. Miller
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Abstract
Maleic anhydride is produced by the reaction of n-butane with a molecular oxygen-containing gas at an elevated temperature in the presence of a catalyst composed of the combined oxides of the elements antimony, molybdenum and at least one member selected from the group consisting of iron and vanadium and optionally one or more oxides of aluminum, boron, tellurium, chromium, cobalt, nickel, copper, bismuth, phosphorus titanium and tungsten.
Claims11
A process for the production of maleic anhydride by the oxidation of n-butane with molecular oxygen or a molecular oxygen-containing gas at a reaction temperature of 300.degree. C to 600.degree. C, in the presence of a catalyst described by the formula
- A.sub.a B.sub.b Sb.sub.c Mo.sub.d O.sub.e
- wherein
- A is at least one member selected from the group consisting of Fe and V;
- B is at least one member selected from the group consisting of Al, Cr, Co, Ni, Cu, Bi, Te, B, P, Ti and W;
- a is a number from 0.1 to 6;
- b is a number from 0 to 3;
- c is a number from 0.1 to 12;
- d is a number from 12 to 1;
- e is a number determined by the valence requirements of the combined elements other than oxygen present in the catalyst.
Dependencies are inferred from the claim text.