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2 165 917

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IPC

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Application

99117398/04, 1999-08-10

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Start date

1999-08-10

(22)

Actual filing date

1999-08-10

(45)

Published

2001-04-27

(72)

Inventor

Kutjanin L.I.Bogach E.V.Mil'Gotin I.M.Varshaver E.V.Uskach Ja.L.Levenberg P.N.Voronov M.Kh.

(73)

Holder

Volgogradskoe Otkrytoe Aktsionernoe Obshchestvo

METHOD OF SYNTHESIS OF CHLOROFORM Russian patent published in 2001 - IPC

Abstract RU 2165917 C1

FIELD: chemical technology. SUBSTANCE: invention relates to method of synthesis of chloroform by liquid-phase chlorination of methylene chloride at photochemical initiation followed by rectification. Method involves chlorination of mixture of chloromethanes obtained by thermic chlorination of methane after removal of chloromethyl from its in the mole ratio methylene chloride to chlorine = 4 -(2:1) at 35-45 C. Mixture of chloromethanes has 50-99% of methylene chloride, 45% C₁-chlorohydrocarbons and up to 2.5% of C₂-chlorohydrocarbons. EFFECT: improved quality of chloroform synthesized. 1 tbl

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RU 2 165 917 C1

Authors

Kutjanin L.I.

Bogach E.V.

Mil'Gotin I.M.

Varshaver E.V.

Uskach Ja.L.

Levenberg P.N.

Voronov M.Kh.

Dates

2001-04-27—Published

1999-08-10—Filed