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2 064 892

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C1

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IPC

(21) (22)

Application

93041180/26, 1993-08-13

(22)

Actual filing date

1993-08-13

(45)

Published

1996-08-10

(72)

Inventor

Kopytov G.G.Pavlukhin M.A.Musikhin B.F.

(73)

Holder

Aktsionernoe Obshchestvo Aljuminievyj Zavod"

METHOD OF BAUXITE LIXIVIATION Russian patent published in 1996 - IPC

Abstract RU 2064892 C1

FIELD: alumina production under autoclave bauxite lixiviation. SUBSTANCE: bauxite pulp is in series pumped through pulp-pulp heaters, steam-pulp heaters with production of steam-condensate mixture, through autoclaves and selfevaporators of first and second step pulp with production of steam and lixiviated pulp. Lixiviated pulp after selfevaporator of second step is fed into pulp-pulp heaters to heat raw pulp. Then lixiviated pulp after evaporator of second step is mixed with steam-condensate mixture of steam-pulp heaters. EFFECT: decreased cost of alumo production. 3 cl, 1 dwg

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RU 2 064 892 C1

Authors

Kopytov G.G.

Pavlukhin M.A.

Musikhin B.F.

Dates

1996-08-10—Published

1993-08-13—Filed

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