METHOD OF DETOXIFICATION OF POLYCHLORINATED ORGANIC WASTES Russian patent published in 2005 - IPC

Abstract RU 2255930 C1

FIELD: detoxification methods.

SUBSTANCE: invention relates to detoxifying polychlorinated organic wastes containing toxic high-boiling substances. For this aim, wastes are hydrogenised on supported palladium catalyst at 60-130°C and pressure 10-50 atm in presence of 10-20% sodium hydroxide solution in biphasic water/hydrocarbon system. According to invention, hydrocarbon solution of waste, prior to be subjected to hydrogenation, is filtered at 70-100°C through filter of nonwoven polymeric material allowing waste particles at least 1 μm in size to be retained, after which reaction mixture is charged with lower aliphatic alcohol in amount 1 to 20 wt %.

EFFECT: essentially increased waste processing productivity with minimum formation of secondary toxic substances.

5 cl, 1 tbl, 12 ex

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RU 2 255 930 C1

Authors

Smirnov V.V.

Noskov Ju.G.

Berlin Eh.R.

Lunin V.V.

Lokteva E.S.

Dates

2005-07-10—Published

2004-03-30—Filed