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2 099 116

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C1

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IPC

(21) (22)

Application

95119251/25, 1995-11-09

(22)

Actual filing date

1995-11-09

(45)

Published

1997-12-20

(72)

Inventor

Petrov V.G.Khan V.P.Trubachev A.V.

(73)

Holder

Institut Prikladnoj Mekhaniki Ural'Skogo Otdelenija Ran

METHOD OF PROCESSING REACTION MASSES FROM DETOXIFICATION OF LEWISITE Russian patent published in 1997 - IPC

Abstract RU 2099116 C1

FIELD: disposal of hazardous materials. SUBSTANCE: in order to produce useful products originated from lewisite, the latter is treated with sodium hydroxide followed by successively adding sulfuric acid and sodium sulfite solutions, after which arsenic sulfide is precipitated within the pH range 1 to 4 at 15-50 C under stirring for 10-60 min. Precipitate is filtered, washed out, and dried. EFFECT: improved safety of procedure. 1 tbl

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RU 2 099 116 C1

Authors

Petrov V.G.

Khan V.P.

Trubachev A.V.

Dates

1997-12-20—Published

1995-11-09—Filed

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