Boride catalyst for epoxidizing olefinic compounds

Details Boride catalyst for epoxidizing olefinic compounds Boride catalyst for epoxidizing olefinic compounds

1975-04-04

1977-07-26

Milestone, Norma S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

423289, C07D30120

Patent

active

040382907

ABSTRACT:
A novel catalyst material of a boron containing substance for catalyzing the liquid phase oxidation of an olefin with an organic hydroperoxide to the corresponding oxirane is disclosed. The novel catalyst materials are characterized as binary or ternary boride compounds having the general formula M.sub.x B.sub.y or M.sub.x B.sub.y R.sub.z wherein x is an integer from 1-5; y is an integer from 1-2; z is an integer from 1-4; B is boron; M is an element selected from the groups II-A, III-B, IV-B, V-B, VI-B, VII-B, VIII, III-A, IV-A, and V-A of the Periodic Table, the rare earths, and the actinides; and R is an element different from M selected from the same group of elements in the Periodic Table as M. The preferred catalyst materials are those boron containing substances which are substantially insoluble in the reaction mixture containing the organic hydroperoxides, olefins and products.
Also disclosed is a method for liquid phase epoxidation of an olefinic compound with an organic hydroperoxide at lower temperatures, e.g. 25.degree. to 200.degree. C and a pressure sufficient to maintain the mixture substantially in liquid phase in the presence of a catalytically effective amount of the novel catalyst material.

REFERENCES:
patent: 3489775 (1970-01-01), de Roch et al.
patent: 3634464 (1972-01-01), Wulff et al.
patent: 3702855 (1972-11-01), Bell et al.

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