Extraction of alumina from ferruginous bauxite by a double-leach process

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U.S. Dept. of the Interior. Bureau of Mines, 1963 - Technology & Engineering - 20 pages

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Contents

Abs tract
1
TABLES Con Page
2
Doubleleach process
7
Effect of time and temperature
8
Screen analysis and extraction from samples of composite 19 sized before calcination
9
Silica leach
10
Extraction of silica and alumina in the silica leach at various pulp densities and caustic concentrations for 30 minutes at 90 C c 11 8 Available alumin...
11
Regeneration of silicaleach liquor
12
Extraction of alumina from lowsilica composite 23 calcine
13
Extraction of alumina from highsilica composite 21 calcine
14
Alumina leach with weak solutions at 220 C
15
The effect of varying the alumina content of the charge and leach liquor on the alumina extraction from silica leached calcine
17
Suggested procedure
18

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