Catalyst comprising tellurium chemically bound to aromatic polymer
AssigneeThe Halcon SD Group, Inc.
InventorWilliam F. Brill
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Abstract
The present invention relates to a novel tellurium catalyst and its preparation, and to a process for preparing oxirane compounds using the novel catalyst. Specifically, the invention relates to a novel catalyst in which tellurium is chemically bound to a solid aromatic-type resin and to the reaction of olefinic compounds with hydrogen peroxide in the presence of the bound tellurium catalyst to produce oxirane compounds.
Claims4
The method of preparing a solid epoxidation catalyst which comprises reacting a co-polymer of styrene and divinyl benzene containing by weight 5 to 20% divinyl benzene with tellurium tetrahalide at a temperature of 20.degree. to 250.degree. C. for 1 to 100 hours to form a reaction product containing 0.2 to 20% by weight tellurium calculated as elemental tellurium chemically bound to aromatic groups of said co-polymer, and hydrolyzing said product to form said epoxidation catalyst.
Dependencies are inferred from the claim text.