METHOD OF PROCESSING NEPHELINE ORES AND CONCENTRATES Russian patent published in 2008 - IPC C01F7/38

Abstract RU 2340559 C1

FIELD: chemistry.

SUBSTANCE: dump slag of process of aluminium thermal ferrotitanium production is added into nepheline-limestone-soda charge in amount from 0.5 to 25% of nepheline ore weight. Then charge is sintered and cake is leached with further obtaining alumina and associated products.

EFFECT: improvement of control over process of sintering, increase of alumina extraction from sintered charge into solution, utilisation of wastes from ferrotitanium production and reduction of wastes of complex nepheline processing.

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RU 2 340 559 C1

Authors

Dates

2008-12-10—Published

2007-06-09—Filed