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2 033 441

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C1

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IPC

(21) (22)

Application

5020674/02, 1991-11-21

(22)

Actual filing date

1991-11-21

(45)

Published

1995-04-20

(72)

Inventor

Stangrit P.T.Sedneva T.A.Tjuljunov I.P.

(73)

Holder

Institut Khimii I Tekhnologii Redkikh Ehlementov I Mineral'Nogo Syr'Ja Kol'Skogo Nauchnogo Tsentra Ran

METHOD OF METAL REEXTRACTION FROM ORGANIC PHASE Russian patent published in 1995 - IPC

Abstract RU 2033441 C1

FIELD: hydrometallurgy. SUBSTANCE: treatment of organic and aqueous phases is carried out by direct current. Anode and cathode space were divided by anion-exchange diaphragm. Metal-containing organic extracts were fed continuously at the rate 3.0-3.8 g/A x h for Ta2O5 or 1.8-2.3 g/A x h for Nb2O5 in cathode space at diaphragm current density 100-1000 A/m2. Water can be used as parent anolyte solution. Method is used in technology of liquid extraction of niobium and tantalum. EFFECT: improved method of metal reextraction. 2 cl, 1 tbl

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RU 2 033 441 C1

Authors

Stangrit P.T.

Sedneva T.A.

Tjuljunov I.P.

Dates

1995-04-20—Published

1991-11-21—Filed

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