METHOD FOR PROCESSING OF WASTES OF DRY CLEANING BASED ON ORGANOCHLORINE COMPOUNDS Russian patent published in 1997 - IPC

Abstract RU 2079589 C1

FIELD: dry cleaning of clothing. SUBSTANCE: added to wastes of dry cleaning is organic solvent to transform them into fluid state. Organic solvents are used in form of hydrocarbons, alcohols or ethers. Distilled from the obtained mass are organochlorine compounds and directed to the dry cleaning process. Then, fractions containing the remains of organochlorine compounds are distilled off. Driven off product is directed for transformation of a new portion of wastes into fluid state. Remains after distillation free of organochlorine compounds are used as fuel. Solvent is used whose boiling temperature is higher than that of organochlorine compounds by, at least, 40 C. Solvent is used in form of burning kerosene, rocket fuel, diesel fuel, white spirit, turpentine, hexyl alcohol and butyl ester. Fraction containing remains of organochlorine compounds is distilled off in the amount equalling that of added solvent, i.e., 15-20 % of the mass of the processed wastes. EFFECT: higher efficiency. 3 cl

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RU 2 079 589 C1

Authors

Nizhegorodtsev V.I.

Nizhegorodtseva S.V.

Nizhegorodtseva T.V.

Dates

1997-05-20Published

1994-05-31Filed