Selective hydrogenation of olefinic impurities in epichlorohydrin
AssigneeShell Oil Company
InventorsElmer A. Anderson, Leo Kim, Sunny C. Tang
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Abstract
Beta-chloroacrolein and 5,6-epoxyhexene-1 impurities present in minor amounts in epichlorohydrin are selectively removed with minimal concomitant destruction of epichlorohydrin by hydrogenation in the presence of a catalyst comprising rhodium, platinum or palladium deposited on a non-acidic, refractory support.
Claims7
A process for selectively removing minor amounts of beta-chloroacroleins and 5,6-epoxyhexene-1 from a mixture made up predominantly of epichlorohydrin which comprises treating said mixture with hydrogen at a temperature of between about 20.degree. C. and about 150.degree. C. in the presence of a supported catalyst comprising a metal selected from the class consisting of rhodium, platinum and palladium deposited on a non-acidic, refractory support, said metal being present at a concentration ranging from about 0.05 to about 10% by weight of the supported catalyst.
Dependencies are inferred from the claim text.