Process for cleaning the interiors of vessels

Details Process for cleaning the interiors of vessels Process for cleaning the interiors of vessels

1981-07-08

1982-11-02

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134 12, 134 2219, B08B 704

Patent

active

043571751

ABSTRACT:
An environmentally acceptable method for cleaning the interior of vessels comprises contacting the interior of a vessel with a solvent for the contaminant contained therein to produce a contaminated solvent, collecting the contaminated solvent from the vessel, separating essentially all of the contaminant from the contaminated solvent to recover essentially all of the solvent essentially free of the contaminant and produce a contaminant composition which is incineratable or can be made incineratable by blending with a combustible composition, such as fuel oil.
The contaminant may be separated from the contaminated solvent by distillation; in which case the overhead product may be washed with sulfuric acid and then neutralized with a base.

REFERENCES:
patent: 3042553 (1962-07-01), Kearney et al.
patent: 3434881 (1969-03-01), Smith
patent: 4136624 (1979-01-01), Kato et al.

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