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2 313 514

(13)

(51)

IPC

C07C21/12(2006-01-01)

(21) (22)

Application

2006115722/04, 2006-05-06

(24)

Start date

2006-05-06

(22)

Actual filing date

2006-05-06

(45)

Published

2007-12-27

(72)

Inventor

Agafonov Boris AleksandrovichSavel'Ev Aleksej NikolaevichSavel'Ev Nikolaj Ivanovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

METHOD FOR PREPARING TETRACHLOROETHYLENE FROM ORGANOCHLORINE C-C-WASTE Russian patent published in 2007 - IPC C07C21/12

Abstract RU 2313514 C1

FIELD: chemical technology.

SUBSTANCE: invention relates to a method for synthesis of tetrachloroethylene from organochlorine (C₁-C₂)-waste and recurrent tetrachloromethane by gas-phase conversion at temperature 450-600⁰C in the presence chlorine acceptor and chlorine excess in reaction gases 10-15 wt.-%. The process of gas-phase conversion is combined with exothermic reaction of exhausting chlorination of methane and/or chloromethane. Invention provides the autothermal process for utilization of liquid and gaseous organochlorine waste in manufacturing chloromethanes by combining with exothermic reaction of exhausting chlorination of methane and/or chloromethane resulting to preparing tetrachloroethylene as the end product and decreasing formation of high-boiling by-side organochlorine substances.

EFFECT: improved method of synthesis.

1 tbl, 1 ex

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RU 2 313 514 C1

Authors

Agafonov Boris Aleksandrovich

Savel'Ev Aleksej Nikolaevich

Savel'Ev Nikolaj Ivanovich

Dates

2007-12-27—Published

2006-05-06—Filed