METHOD FOR PREPARING PHOSGENE FROM PERCHLOROETHYLENE Russian patent published in 2006 - IPC C01B31/28 

Abstract RU 2281246 C1

FIELD: chemical industry and technology.

SUBSTANCE: method involves at the first step the oxidative pyrolysis of vapor-gas mixture consisting of perchloroethylene and oxygen chosen in the mole ratio = 1:(1.00-1.15) at temperature 500-1500°C. At the second step phosgene is prepared from the prepared gaseous mixture comprising carbon oxide and chlorine. Invention provides synthesis of phosgene from perchloroethylene and oxygen with the high yield. Invention can be used in low-tonnage manufacturing high-molecular materials, biologically active substances, dyes and solvents.

EFFECT: improved preparing method.

1 tbl, 1 dwg, 1 ex

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RU 2 281 246 C1

Authors

Savel'Ev Aleksej Nikolaevich

Savel'Ev Nikolaj Ivanovich

Agafonov Boris Aleksandrovich

Dates

2006-08-10Published

2005-06-07Filed