Process for cleaning vessels containing sulfur dichloride

Details Process for cleaning vessels containing sulfur dichloride Process for cleaning vessels containing sulfur dichloride

1984-04-20

1985-10-08

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134 19, 134 21, 134 221, B08B 908

Patent

active

045458227

ABSTRACT:
Substantially all the liquid sulfur dichloride in a vessel is removed from the vessel leaving a heel (residue) of liquid and solid material on the bottom of the vessel. The remaining liquid is vaporized by heating the vessel, and the vapors are removed by vacuum and purging. The vessel is purged with an inert gas during heating to prevent exothermic reactions and the formation of toxic reaction products, and to assist in removal of vapors from the vessel. The removed liquid and vapors are neutralized by reaction with sodium hydroxide. The solid residue remaining in the vessel is then removed from both the bottom and wall portions.

REFERENCES:
patent: 1849932 (1932-03-01), Johnson et al.
patent: 3163134 (1964-12-01), Stratford
patent: 4136624 (1979-01-01), Kato et al.
patent: 4220480 (1980-09-01), Dwan
patent: 4332626 (1982-06-01), Hood et al.

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