Chemistry of inorganic compounds – Halogen or compound thereof – Binary compound containing metal
Patent
1976-04-27
1978-02-14
Stern, Edward
Chemistry of inorganic compounds
Halogen or compound thereof
Binary compound containing metal
423136, 423137, 423462, 423463, 423472, C01F 756, C01F 760, C01F 700
Patent
active
040738728
ABSTRACT:
The invention provides a process for recovering aluminum values from aluminum-containing minerals, such as oxides of aluminum and aluminosilicates.
The process involves heating an intimate mixture of an aluminum-containing mineral and a solid carbonizable organic material, preferably a fibrous cellulosic material, so as to carbonize the organic material, and chlorinating the solid residue from the carbonization step. The solid residue contains carbon in very finely divided form distributed throughout the aluminum-containing mineral. The surface area and reactivity of this carbon is much higher than that of powdered coal and the chlorination reaction thus takes place in a most efficient manner.
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patent: 1865008 (1932-06-01), Holm
patent: 2832668 (1958-04-01), Culberson et al.
patent: 3937786 (1976-02-01), Nemecz et al.
patent: 3950485 (1976-04-01), Nemecz et al.
Eslinger Lewis H.
Stern Edward
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