PRODUCTION OF POLYMERIZATION GRADE DICYCLOPENTADIENE

A process for purifying crude dicyclopentadiene which comprises the steps of: cracking the crude dicyclopentadiene to form a monomeric-containing effluent which comprises at least one monomer selected from the group consisting of: C4 acyclic dienes, C5 acyclic dienes, cyclopentadiene and methylcyclo...

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Bibliographic Details
Main Authors KEENAN, MICHAEL, JOHN, SCHUCKER, ROBERT, CHARLES, SHARP, DAVID, WALTER
Format Patent
LanguageEnglish
French
German
Published 31.03.1999
Edition6
Subjects
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Summary:A process for purifying crude dicyclopentadiene which comprises the steps of: cracking the crude dicyclopentadiene to form a monomeric-containing effluent which comprises at least one monomer selected from the group consisting of: C4 acyclic dienes, C5 acyclic dienes, cyclopentadiene and methylcyclopentadiene; separating the monomeric-containing effluent into a cyclopentadiene-enriched stream and a cyclopentadiene-poor stream; dimerizing the cyclopentadiene-enriched stream to form a dimerizer effluent; contacting a membrane separator under pervaporation conditions with the dimerizer effluent wherein the C4 acyclic dienes, C5 acyclic dienes and cyclopentadiene permeate through the membrane separator and wherein a dicyclopentadiene product having a purity of at least about 98% is retained as retentate.
Bibliography:Application Number: EP19950904840