GB1201991A - Purification of 3,4-dichlorobutene-1 and the manufacture of chloroprene - Google Patents

Purification of 3,4-dichlorobutene-1 and the manufacture of chloroprene

Info

Publication number
GB1201991A
GB1201991A GB127868A GB127868A GB1201991A GB 1201991 A GB1201991 A GB 1201991A GB 127868 A GB127868 A GB 127868A GB 127868 A GB127868 A GB 127868A GB 1201991 A GB1201991 A GB 1201991A
Authority
GB
United Kingdom
Prior art keywords
dichlorobutene
chloroprene
purification
manufacture
jan
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
GB127868A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1201991A publication Critical patent/GB1201991A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C08F36/14—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen
    • C08F36/16—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen containing halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,201,991. 3,4-Dichlorobutene-1; chloroprene. E. I. DU PONT DE NEMOURS & CO. 9 Jan., 1968 [9 Jan., 1967], No. 1278/68. Heading C2C. 3,4-Dichlorobutene-1 is purified by reducing the content of 4-chlorobutadiene-1,2 therein to less than 0.1% by weight. The purification may be effected by fractional distillation, e.g. at reduced pressure. The purified 3,4-dichlorobutene-1 may be converted to chloroprene. by contacting it with a base, e.g. aqueous alkali, and the chloroprene may be polymerized to neoprene.
GB127868A 1967-01-09 1968-01-09 Purification of 3,4-dichlorobutene-1 and the manufacture of chloroprene Expired GB1201991A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60788867A 1967-01-09 1967-01-09

Publications (1)

Publication Number Publication Date
GB1201991A true GB1201991A (en) 1970-08-12

Family

ID=24434121

Family Applications (1)

Application Number Title Priority Date Filing Date
GB127868A Expired GB1201991A (en) 1967-01-09 1968-01-09 Purification of 3,4-dichlorobutene-1 and the manufacture of chloroprene

Country Status (3)

Country Link
DE (1) DE1745297C3 (en)
FR (1) FR1550746A (en)
GB (1) GB1201991A (en)

Also Published As

Publication number Publication date
DE1745297B2 (en) 1977-09-22
DE1745297A1 (en) 1971-09-16
FR1550746A (en) 1968-12-20
DE1745297C3 (en) 1978-05-18

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years