GB1267169A - - Google Patents

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Publication number
GB1267169A
GB1267169A GB1267169DA GB1267169A GB 1267169 A GB1267169 A GB 1267169A GB 1267169D A GB1267169D A GB 1267169DA GB 1267169 A GB1267169 A GB 1267169A
Authority
GB
United Kingdom
Prior art keywords
dehydrochlorinating
preparation
initiator
under
weight
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
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 filed Critical
Publication of GB1267169A publication Critical patent/GB1267169A/en
Expired legal-status Critical Current

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Classifications

    • 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

Abstract

1,267,169. Dehydrochlorinating polychloroethanes. E. V. SONIN, A. L. ENGLIN, I. F. PEMENOV, M. G. AVETIAN, O. V. POLOZOV, A. S. GOLEV, J. A. TREGER, and V. N. ANTIPOV. 23 Oct., 1969, No. 51882/69. Heading C2C. Polychloroethylenes are prepared by dehydrochlorinating a polychloroethane in the vapour phase at 250‹ to 500‹ C. under a pressure of 2 to 30 atmospheres in the presence of a reaction initiator, e.g. oxygen, a halogen, or a compound such as hexachloroethane which is capable of liberating free radicals under the reaction conditions. The initiator is preferably present in an amount of from 0.2 to 0.9% by weight based on the weight of the polychloroethylene feed. Examples describe the preparation of vinylidene chloride and cis- and transdichloroethylenes from trichloroethane, and the preparation of trichloroethylene from tetrachloroethane.
GB1267169D 1969-10-23 1969-10-23 Expired GB1267169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5188269 1969-10-23

Publications (1)

Publication Number Publication Date
GB1267169A true GB1267169A (en) 1972-03-15

Family

ID=10461774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1267169D Expired GB1267169A (en) 1969-10-23 1969-10-23

Country Status (1)

Country Link
GB (1) GB1267169A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007094965A1 (en) * 2006-02-14 2007-08-23 Ppg Industries Ohio, Inc. Integrated process for producing 1,2-dichloroethylene
CN101016224B (en) * 2007-02-09 2010-10-06 扬州大学 Method of preparing trans-1,2-dichloroethylene from mixed chlorohydrocarbon

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007094965A1 (en) * 2006-02-14 2007-08-23 Ppg Industries Ohio, Inc. Integrated process for producing 1,2-dichloroethylene
US7335806B2 (en) 2006-02-14 2008-02-26 Ppg Industries Ohio, Inc. Integrated process for producing 1,2-dichloroethylene
CN101016224B (en) * 2007-02-09 2010-10-06 扬州大学 Method of preparing trans-1,2-dichloroethylene from mixed chlorohydrocarbon

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee