PRODUCTION METHOD FOR POLYCHLOROPROPANE

PROBLEM TO BE SOLVED: To efficiently and stably obtain 1,1,1,2,3-pentachloropropane, in a production method for 1,1,1,2,3-pentachloropropane, comprising a first step of obtaining 1,1,1,3-tetrachloropropane by reacting ethylene with carbon tetrachloride produced by reaction of chlorine and methyl chl...

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Bibliographic Details
Main Authors SAITO AKIHIRO, TSUNODA DAI, HOSAKA TOSHISUKE, KOMATSU YASUTAKA
Format Patent
LanguageEnglish
Published 26.09.2013
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:PROBLEM TO BE SOLVED: To efficiently and stably obtain 1,1,1,2,3-pentachloropropane, in a production method for 1,1,1,2,3-pentachloropropane, comprising a first step of obtaining 1,1,1,3-tetrachloropropane by reacting ethylene with carbon tetrachloride produced by reaction of chlorine and methyl chloride and/or reaction of methanol and hydrogen chloride and a second step of obtaining 1,1,1,2,3-pentachloropropane by dehydrochlorination and chlorination of 1,1,1,3-tetrachloropropane obtained in the first step.SOLUTION: As bromide impurities affect reaction of a second step, a production method performs at least one of a step of purifying before a first step carbon tetrachloride to decrease the total bromide amount to be ≤30 ppmw and a step of decreasing after the first step but before the second step the total bromide amount in the 1,1,1,3-tetrachloropropane to ≤30 ppmw.
Bibliography:Application Number: JP20120057356