Chloropropene prodn. by de:hydrochlorination of di:chloropropane - with soln. of sodium butoxide in butanol

Chloropropene prodn. by de:hydrochlorination of di:chloropropane - with soln. of sodium butoxide in butanol

Prodn. of chloropropene (I) comprises dehydrochlorination of 1,2-dichloropropane (II) by reacting (pref. at 50-100 degrees C and 1-10 bar) in the liq. phase with a soln. of Na butoxide in n-butanol. (I) is then recovered from the reaction mixt. by distn.. Pref. reaction is at 0-150 degrees C using 1...

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Hauptverfasser: WENZEL,RUPERT,DR, BLASCHKE,HEINZ-GUENTHER,DR, SCHARFE,GERHARD,DR
Format: Patent
Sprache:eng ; ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:Prodn. of chloropropene (I) comprises dehydrochlorination of 1,2-dichloropropane (II) by reacting (pref. at 50-100 degrees C and 1-10 bar) in the liq. phase with a soln. of Na butoxide in n-butanol. (I) is then recovered from the reaction mixt. by distn.. Pref. reaction is at 0-150 degrees C using 1-2 moles (II) per mole butoxide. The residual mixt. after recovery of (I) is pref. processed to separate (II) and n-butanol (both recycled) and NaCl, used e.g. for electrolysis. (I) is used to make copolymers with vinylidene chloride Pure NaCl is produced with little by-prodn. of water.