GB1018046A - Process for depolymerizing dicyclopentadiene or its methyl homologues - Google Patents

Process for depolymerizing dicyclopentadiene or its methyl homologues

Info

Publication number
GB1018046A
GB1018046A GB43813/64A GB4381364A GB1018046A GB 1018046 A GB1018046 A GB 1018046A GB 43813/64 A GB43813/64 A GB 43813/64A GB 4381364 A GB4381364 A GB 4381364A GB 1018046 A GB1018046 A GB 1018046A
Authority
GB
United Kingdom
Prior art keywords
dimer
monomer
fractionating column
cracking
boiling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB43813/64A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF Schweiz AG
Original Assignee
Ciba AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ciba AG filed Critical Ciba AG
Publication of GB1018046A publication Critical patent/GB1018046A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
    • C07C4/22—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by depolymerisation to the original monomer, e.g. dicyclopentadiene to cyclopentadiene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/06—Systems containing only non-condensed rings with a five-membered ring
    • C07C2601/10—Systems containing only non-condensed rings with a five-membered ring the ring being unsaturated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S585/00—Chemistry of hydrocarbon compounds
    • Y10S585/919—Apparatus considerations
    • Y10S585/92—Apparatus considerations using apparatus of recited composition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S585/00—Chemistry of hydrocarbon compounds
    • Y10S585/949—Miscellaneous considerations
    • Y10S585/956—Condition-responsive control and related procedures in alicyclic synthesis and purification

Abstract

Monomeric cyclopentadiene or a homologue is obtained from the dimer by cracking in the gas phase, to convert at least a major part into monomer, mixing with vapours of a stable inert liquid boiling in the range 160-360 DEG C., passing the mixture into a fractionating column and recovering pure monomer as overhead distillate. Suitable inert liquids are tetralin decalin, diethylbenzene, di- or tri-chloro-benzene, diphenyl ether or a petroleum fraction boiling above 200 DEG C. Dimer is preferably injected into the cracking reactor at the same rate as monomer is recovered. An automatic control may effect total reflux if the boiling point of the monomer is exceeded at the head of the fractionating column while simultaneously cutting off dimer supply. Dimer is preferably vaporized and cracked by introducing into a vertical tubular reactor at 200-400 DEG C. having a packing of copper or a copper alloy on which the dimer can vaporize. Specification 612,893 is referred to.
GB43813/64A 1963-11-12 1964-10-27 Process for depolymerizing dicyclopentadiene or its methyl homologues Expired GB1018046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1387263A CH430701A (en) 1963-11-12 1963-11-12 Process for the depolymerization of dicyclopentadiene or its methyl homologues

Publications (1)

Publication Number Publication Date
GB1018046A true GB1018046A (en) 1966-01-26

Family

ID=4396068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43813/64A Expired GB1018046A (en) 1963-11-12 1964-10-27 Process for depolymerizing dicyclopentadiene or its methyl homologues

Country Status (3)

Country Link
US (1) US3340315A (en)
CH (1) CH430701A (en)
GB (1) GB1018046A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529027A (en) * 1967-12-04 1970-09-15 Exxon Research Engineering Co Process for preparation of alicyclic conjugated dienes from hydrocarbon dimer mixtures
US3676509A (en) * 1971-01-20 1972-07-11 Dow Chemical Co Recovery of dicyclopentadiene from cracked petroleum
GB1369676A (en) * 1971-02-19 1974-10-09 Int Synthetic Rubber Cyclopentene preparation
NL163493C (en) * 1973-03-01 1980-09-15 Stamicarbon PROCESS FOR PREPARING CYCLOPENTADIENES IN THE GAS PHASE
US20080097132A1 (en) * 2004-06-30 2008-04-24 Albemarle Corporation Cracking of dicyclopentadiene

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB612893A (en) * 1946-06-05 1948-11-18 Percy Frederick Combe Sowter Improvements in the production of cyclopentadiene
US2801270A (en) * 1953-11-16 1957-07-30 Exxon Research Engineering Co Recovery of cyclodienes with vapor phase cracking
GB769813A (en) * 1954-08-28 1957-03-13 Huels Chemische Werke Ag Improvements in the production of cyclopentadiene by deploymerisation of dicyclopentadiene
US2831904A (en) * 1954-08-31 1958-04-22 Shell Dev Depolymerization of dicyclopentadiene
US2913504A (en) * 1956-07-13 1959-11-17 Exxon Research Engineering Co Vapor phase cracking of cyclopentadiene dimer
US2933539A (en) * 1958-04-23 1960-04-19 Exxon Research Engineering Co Fractionation of cyclodiene monomer vapors
US3007978A (en) * 1959-08-27 1961-11-07 Exxon Research Engineering Co Process for cracking dicyclopentadiene
US3016410A (en) * 1959-12-28 1962-01-09 Dow Chemical Co Preparation of cyclopentadiene from dicyclopentadiene

Also Published As

Publication number Publication date
US3340315A (en) 1967-09-05
CH430701A (en) 1967-02-28

Similar Documents

Publication Publication Date Title
GB1410773A (en) Hydrocarbon separation process
US2704778A (en) Adtio
ES411298A1 (en) Process for the separation of isoprene
GB1018046A (en) Process for depolymerizing dicyclopentadiene or its methyl homologues
ES316271A1 (en) Method of fractionating natural gas feed by preheating feed with fractionator overhead
US4522688A (en) Process for recovery of cyclopentadienes
ES291375A1 (en) Method for concentrating soluble olefinic polymers contents in washing liquids (Machine-translation by Google Translate, not legally binding)
DE1804878B2 (en) Process for the preparation of 5-isopropyliden-2-norbornene by isomerizing 5-isopropenyl-2-norbornene
ES381946A1 (en) Process for the extraction of aromatic hydrocarbons
GB612893A (en) Improvements in the production of cyclopentadiene
GB1261565A (en) Cracking dicyclopentadiene to monomer
US2981756A (en) Chlorinated cycloolefin
JPS57123123A (en) Preparation of high purity butadiene
US2951878A (en) Chlorinated olefins and method for producing same
JPS5764622A (en) Separating method of dicyclopentadiene
ES330435A1 (en) A procedure for the separation of a hydrocarbon mixture comprising benzene and xyomen isomers. (Machine-translation by Google Translate, not legally binding)
DE2425290B2 (en) Process for the production of cyclopentadiene by splitting dicyclopentadiene in the liquid phase
NO133493B (en)
GB1087334A (en) Process for the continuous production of monoolefines
US2223197A (en) Treatment of hydrocarbon gases
GB848385A (en) Process for producing alpha olefins
GB892470A (en) Recovery of high purity isoprene from a hydrocarbon fraction containing acetylenes
GB966495A (en) Vapour phase hydrocarbon conversion
GB1008964A (en) Isomerisation of olefins
GB931558A (en) Separating mixtures containing isoprene by distillation