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2 100 271

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IPC

(21) (22)

Application

95120958/25, 1995-12-09

(22)

Actual filing date

1995-12-09

(45)

Published

1997-12-27

(72)

Inventor

Isupov V.K.Galkin B.Ja.Anisimov O.P.

(73)

Holder

Nauchno-Proizvodstvennoe Ob"Edinenie Institut Im.V.G.Khlopina"

METHOD OF RECOVERING IODINE FROM DRILLING WATER Russian patent published in 1997 - IPC

Abstract RU 2100271 C1

FIELD: oil and gas production. SUBSTANCE: method involves oxidizing iodides contained in water into elementary iodine which is completed by means of sodium hypochlorite with no preliminary acidification of drilling water, iodine being simultaneously extracted into organic phase. Reextraction of iodine and its purification are performed via solid-phase procedure using metal copper. EFFECT: improved purity of recovered iodine and eliminated using sulfuric acid and chlorine and burning sulfur. 2 cl

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RU 2 100 271 C1

Authors

Isupov V.K.

Galkin B.Ja.

Anisimov O.P.

Dates

1997-12-27—Published

1995-12-09—Filed

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