| 摘要 |
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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