METHOD OF LEACHING BOXITE Russian patent published in 1998 - IPC

Abstract RU 2117632 C1

FIELD: manufacture of alumina. SUBSTANCE: crude pulp is heated in preheaters, then heated and leached in autoclaves, leached pulp is subjected to self evaporation in self evaporators. Pulp is heated in preheaters first in vapor-pulp and then in pulp-pulp mode, leached pulp, as heat carrier, being fed to second heating stage directly from last reaction autoclave. Said process makes it possible to raise temperature of regenerative heating of crude pulp. EFFECT: more efficient leaching method. 1 dwg

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RU 2 117 632 C1

Authors

Kopytov G.G.

Chernabuk Ju.N.

Turkin Ju.I.

Svinin P.A.

Dates

1998-08-20—Published

1996-08-07—Filed