GB569097A - Production of 2-chlorobutadiene-1:3 - Google Patents

Production of 2-chlorobutadiene-1:3

Info

Publication number
GB569097A
GB569097A GB1210141A GB1210141A GB569097A GB 569097 A GB569097 A GB 569097A GB 1210141 A GB1210141 A GB 1210141A GB 1210141 A GB1210141 A GB 1210141A GB 569097 A GB569097 A GB 569097A
Authority
GB
United Kingdom
Prior art keywords
chloroprene
dichlorbutenes
pyrolyzed
trichlorbutane
chlorbutene
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
GB1210141A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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
Priority to US336625A priority Critical patent/US2415294A/en
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1210141A priority patent/GB569097A/en
Publication of GB569097A publication Critical patent/GB569097A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C21/00—Acyclic unsaturated compounds containing halogen atoms
    • C07C21/02—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds
    • C07C21/19—Halogenated dienes
    • C07C21/20—Halogenated butadienes
    • C07C21/21—Chloroprene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/25—Preparation of halogenated hydrocarbons by splitting-off hydrogen halides from halogenated hydrocarbons

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Chloroprene is obtained by pyrolysis of one or more of the chlorination products of 2-chlorbutene-2, including 2-2-3-trichlorbutane and the isomeric dichlorbutenes boiling at 111-112 DEG C. and 130-131 DEG C., but excluding such a process when copper or copper compounds are used as catalysts, which is covered by Specification 569,098. In detailed examples: (1)-(3) the trichlorbutane is pyrolyzed to chloroprene and dichlorbutenes; in example (4) the dichlorbutenes, separated from the chloroprene, are again pyrolyzed to produce more chloroprene; (5) the chlorination product of 2-chlorbutene-2 is pyrolyzed, yielding chloroprene and dichlorbutenes, the chloroprene being separated by polymerization; (7) 2-2-3-trichlorbutane is pyrolyzed in presence of barium chloride. Specification 569,096 also is referred to.
GB1210141A 1940-05-22 1941-09-19 Production of 2-chlorobutadiene-1:3 Expired GB569097A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US336625A US2415294A (en) 1940-05-22 1940-05-22 Preparation of 2-chlorobutadiene-1, 3
GB1210141A GB569097A (en) 1941-09-19 1941-09-19 Production of 2-chlorobutadiene-1:3

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1210141A GB569097A (en) 1941-09-19 1941-09-19 Production of 2-chlorobutadiene-1:3

Publications (1)

Publication Number Publication Date
GB569097A true GB569097A (en) 1945-05-04

Family

ID=9998399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1210141A Expired GB569097A (en) 1940-05-22 1941-09-19 Production of 2-chlorobutadiene-1:3

Country Status (1)

Country Link
GB (1) GB569097A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938060A (en) * 1956-02-25 1960-05-24 Knapsack Ag Process for the manufacture of pure chloroprene
US2984690A (en) * 1957-12-07 1961-05-16 Knapsack Ag Process for isolating and purifying chloroprene
DE1238007B (en) * 1960-01-04 1967-04-06 Monsanto Co Process for the preparation of 2-chloro-1,3-butadiene

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938060A (en) * 1956-02-25 1960-05-24 Knapsack Ag Process for the manufacture of pure chloroprene
US2984690A (en) * 1957-12-07 1961-05-16 Knapsack Ag Process for isolating and purifying chloroprene
DE1238007B (en) * 1960-01-04 1967-04-06 Monsanto Co Process for the preparation of 2-chloro-1,3-butadiene

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