METHOD FOR LEACHING BAUXITES Russian patent published in 1997 - IPC

Abstract RU 2081827 C1

FIELD: alumina production. SUBSTANCE: bauxite pulp is subjected to heating first in pulp-pulp heaters, and next in steam-pulp heaters using steam generated by first-stage self-evaporator. Pulp is then finally heated and leached in autoclaves. Pulp thus-leached is subjected to self-evaporation in first- and second-stage self-evaporators to yield steam and leached pulp. EFFECT: invention offers considerable savings due to use of heat recovered at various process stages. 1 dwg

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RU 2 081 827 C1

Authors

Kopytov G.G.

Zajtsev A.L.

Chernabuk Ju.N.

Pirogov G.N.

Zyrjanov V.A.

Dates

1997-06-20—Published

1994-05-26—Filed