PROCESS FOR REMOVAL OF 1,2-EPOXY-5-HEXENE FROM EPICHLOROHYDRIN

European Patent Office Patent

APP PUB NO EP-2991971-A1
SERIAL NO

14721758

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Abstract

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The invention relates to a process for purification of epichlorohydrin containing 1,2-epoxy-5-hexene impurity, by (a) epoxidizing allyl chloride contaminated with 1,5-hexadiene into epichlorohydrin, (b) removing any unreacted allyl chloride, (c) adding a halogen to the crude epichlorohydrin obtained after the removal of unreacted allyl chloride and allowing the halogen to react with 1,2-epoxy-5-hexene and other olefinically unsaturated components, if any, in the crude epichlorohydrin, and (d) rectifying the product of step (c) to obtain epichlorohydrin, wherein the amount of halogen added in step (c) is at a molar ratio of at least 0.5:1 to less than 1:1 calculated on the amount of said 1,2-epoxy-5-hexene and said other olefinically unsaturated components in the crude epichlorohydrin, and allowing the halogen to react until it is fully converted.

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Patent Owner(s)

Patent OwnerAddress
HEXION RES BELGIUM SABE

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Inventor(s)

Inventor Name Address
HAESAKKERS PAUL B-1348 OTTIGNIES LOUVAIN-LA-NEUVE
KAPELLEN MARK B-1348 OTTIGNIES LOUVAIN-LA-NEUVE
LIENKE JOACHIM B-1348 OTTIGNIES LOUVAIN-LA-NEUVE
RENS-VAN DER LEE SANDRA B-1348 OTTIGNIES LOUVAIN-LA-NEUVE
VAN RIJN JIMMY ANTONIUS B-1348 OTTIGNIES LOUVAIN-LA-NEUVE

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