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 methylcycl...

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Bibliographic Details
Main Authors KEENAN, MICHAEL JOHN, SCHUCKER, ROBERT CHARLES, SHARP, DAVID WALTER
Format Patent
LanguageEnglish
French
Published 12.03.2002
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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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 separato r 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 o f at least about 98 % is retained as retentate, is disclosed. Also disclosed i s an apparatus for carrying out said process.
Bibliography:Application Number: CA19942179160