Purification of anhydrous hydrogen chloride

Details Purification of anhydrous hydrogen chloride Purification of anhydrous hydrogen chloride

1989-01-27

1990-05-22

Russel, Jeffrey E.

Chemistry of inorganic compounds

Halogen or compound thereof

Hydrogen halide

4232451, 423DIG10, 2041573, C01B 707, B01D 300

Patent

active

049276212

ABSTRACT:
A method to purify impure gaseous hydrogen chloride containing an unsaturated chlorinated hydrocarbon contaminant in an amount less than that necessary to inhibit purification, comprising exposing the impure hydrogen chloride to an ultraviolet light source in the presence of gaseous chloride for a sufficient time for the gaseous chloride to react with organic impurities in the hydrogen chloride to form heavier organic compounds and thereafter separating the heavier compounds from the hydrogen chloride.

REFERENCES:
patent: 3446586 (1969-05-01), Young
patent: 4035473 (1977-07-01), Urioste et al.
patent: 4045316 (1977-08-01), Legan
patent: 4144152 (1979-03-01), Kitchens
patent: 4206188 (1980-06-01), Megerle
patent: 4388278 (1983-06-01), Schmidhammer et al.
patent: 4668833 (1987-05-01), Ohshima et al.
patent: 4695357 (1987-09-01), Boussert
Chemical Abstracts, vol. 70, 1969, 57102j.
Derwent 86-246278/38 (DE 3508371-A).
Derwent 84-050765/09 (EP 101127-A).
Derwent 82-36707E/18 (SU 842016-B).
Derwent 76-15140X/09 (DE 2438153-A).
Derwent 75-60894W/37 (GB 1405714-A).

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