Removal of phosgene from boron trichloride

Details Removal of phosgene from boron trichloride Removal of phosgene from boron trichloride

1979-08-01

1980-12-09

Peters, G. O.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Halogenous component

423292, 423487, C01B 3506

Patent

active

042384656

ABSTRACT:
Boron trichloride containing minor amounts of phosgene as an impurity is purified by contacting a vaporous stream thereof and at least a stoichiometric amount of hydrogen, based on the phosgene impurity, with a substantially metal-free carbon catalyst under substantially anhydrous conditions at temperatures of between about 300.degree. C. and about 700.degree. C.

REFERENCES:
patent: 1220411 (1917-03-01), Garner et al.
patent: 3126256 (1964-03-01), Haimsohn et al.
patent: 3789580 (1974-02-01), Allemang et al.

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