Bauxite processing

Details Bauxite processing Bauxite processing

1992-07-08

1994-01-18

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Consolidating metalliferous material by agglomerating,...

75671, 75673, C22B 102

Patent

active

052796450

ABSTRACT:
An improved process for the removal of organic matter from bauxite ore containing gibbsite comprises heating the ore under roasting conditions including a roasting temperature of from about 400.degree. C. to about 600.degree. C. with oxygen-containing roasting gas having a moisture content of less than 1% by volume water until the water of crystallization of the alumina present in the treated product is less than 0.5 mole per mole of alumina.

REFERENCES:
patent: 2805929 (1957-09-01), Udy
patent: 4411695 (1983-10-01), Twyman
patent: 4654088 (1987-03-01), Fitzpatrick

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