Purification of thionyl chloride

Details Purification of thionyl chloride Purification of thionyl chloride

1981-04-28

1982-06-29

Hearn, Brian E.

Chemistry of inorganic compounds

Halogen or compound thereof

Sulfur containing

423469, 423559, 423500, 203 29, 203 51, C01B 1745

Patent

active

043372350

ABSTRACT:
A process for the purification of crude thionyl chloride wherein the crude thionyl chloride is distilled in the presence of sulfur and a sulfur-aluminum chloride catalyst to convert the impurities, sulfuryl chloride and sulfur dichloride and remove them from the distillate of thionyl chloride. The thionyl chloride collected will contain less than 0.01% sulfuryl chloride, less than 0.1% sulfur monochloride and less than 0.01% sulfur dichloride.

REFERENCES:
patent: 2529671 (1950-11-01), Bissinger
patent: 2539679 (1951-01-01), Trager
patent: 3155457 (1964-11-01), Kunkel
patent: 3219413 (1965-11-01), Kunkel
patent: 3592593 (1971-07-01), Bohm

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