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2 065 776

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Application

94021942/03, 1994-06-20

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Actual filing date

1994-06-20

(45)

Published

1996-08-27

(72)

Inventor

Dijashev R.N.Takhautdinov Sh.F.Sattarova F.M.Zajtsev V.I.Antonov G.P.Dijashev I.R.Sizov B.A.

(73)

Holder

Tatarskij Gosudarstvennyj Nauchno-Issledovatel'Skij I Proektnyj Institut Neftjanoj Promyshlennosti

METHOD FOR PURIFICATION OF SLIME AGAINST PETROLEUM AND RADIOACTIVE IMPURITIES Russian patent published in 1996 - IPC

Abstract RU 2065776 C1

FIELD: preservation of environment during working of mines. SUBSTANCE: slime is treated by nonpolar organic solvent. Then said solvent is separated and slime is consequently treated by 20 % aqueous solution of soda ash and by 10 % aqueous solution of ammonium chloride. Said processes are carried out in each of mentioned above solutions at boiling point within 2-4 h. EFFECT: improves efficiency of the method. 1 tbl

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RU 2 065 776 C1

Authors

Dijashev R.N.

Takhautdinov Sh.F.

Sattarova F.M.

Zajtsev V.I.

Antonov G.P.

Dijashev I.R.

Sizov B.A.

Dates

1996-08-27—Published

1994-06-20—Filed

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