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2 075 521

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IPC

(21) (22)

Application

93041240/02, 1993-08-16

(22)

Actual filing date

1993-08-16

(45)

Published

1997-03-20

(72)

Inventor

Kudrjavskij Ju.P.Frejdlina R.G.Bondarev Eh.I.Jakovenko B.I.

(73)

Holder

Aoo Titano-Magnievyj Kombinat"

METHOD OF RECOVERY OF METALS FROM USED MELT OF TITANIUM TETRACHLORIDE Russian patent published in 1997 - IPC

Abstract RU 2075521 C1

FIELD: methods of recovery of metals from used melt of production of titanium tetrachloride by leaching to produce chloride solution, precipitation from solution of hydroxides of chromium, rare and radioactive metals, treatment of precipitant with solution of sodium hypochlorite, separation of rare metal concentrate from chromate solution. SUBSTANCE: chromate solution is mixed with chloride solution in ratio of 1:(1-2) after separation of precipitant of hydroxides and introduction of alkali reagent into obtained pulp up pH 6-9. EFFECT: higher efficiency. 2 cl, 2 dwg, 1 tbl

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RU 2 075 521 C1

Authors

Kudrjavskij Ju.P.

Frejdlina R.G.

Bondarev Eh.I.

Jakovenko B.I.

Dates

1997-03-20—Published

1993-08-16—Filed

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