对云南某低铜含钴黄铁矿进行了可选性试验研究。采用铜钴混合浮选、优先浮铜再浮含钴黄铁矿两种流程，结果表明，采用铜钴混合浮选工艺流程，可获得含Cu 0．21％、Co 0．81％、S 52．79％，Co回收率为90．07％的混合精矿，流程简单，成本低；采用优先浮铜、再浮选钴工艺流程获得的铜精矿含Cu 20．15％、Cu回收率49．12％，钴精矿含Co 0．81％、Co回收率91．41％，该流程复杂，但能有效回收铜，略提高钴回收率。%The beneficiability of a Co⁃bearing pyrite with low content of copper was studied with two flowsheets, a Cu⁃Co bulk flotation and a Cu⁃preferential flotation prior to the flotation of Co⁃bearing pyrite. The results show that the simple and economic approach of bulk flotation led to a bulk concentrate containing 0.21% of Cu, 0.81% of Co and 52.79% of S, with a Co recovery of 90. 07%, while another process flowsheet resulted in 49. 12% Cu recovery to a copper concentrate grading 20.15% Cu and 91.41% Co recovery to a cobalt concentrate grading 0.81% Co, respectively. It can be seen that the selective flotation technique, though comparatively complex, is more effective in copper recovery and can also slightly increase the Co recovery rate.
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