APATITE OR FLOTATION PROCESS Russian patent published in 2001 - IPC

Abstract RU 2164824 C2

FIELD: mineral dressing. SUBSTANCE: invention, in particular, relates to flotation of high-carbonate apatite ores with elevated level of calcite and francolite. Process involves successively treating pulp with soda, liquid glass, and sulfite-alcohol dregs, and conditioning followed by flotation with collector containing acylated amino-hydroxamic acids. According to invention, before conditioning, pulp is treated with ethylenediaminetetraacetic acid salt in proportions 20-25 g/t. EFFECT: enhanced flotation performance. 2 cl, 1 tbl

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RU 2 164 824 C2

Authors

Bragina V.I.

Bragin V.I.

Kirienko T.M.

Dates

2001-04-10—Published

1998-07-06—Filed