综合利用含锑砷金精矿关键集成技术试验研究

针对某含锑砷金精矿，通过直接氰化试验、两段焙烧氰化试验、直接氰化—浮选回收锑—浮选尾矿两段焙烧氰化试验等工艺技术进行试验研究。结果表明，采用一级直接氰化、二级氰化尾矿浮选富集锑精矿、三级为锑浮选尾矿两段焙烧氰化关键集成技术方法，含锑含砷金精矿直接氰化金、银浸出率分别为31.22%、85.19%,氰化尾矿浮选产出锑含量为38.80%的锑精矿，精矿产率为10.50%,锑回收率达到90.94%,锑浮选尾矿采用两段焙烧氰化金、银回收率分别达到90.07%、52.70%,该关键集成技术方法使金、银、锑的综合回收率分别达到93.56%、92.99%、90.94%,显著提高了有价金属资源的综合回收效果，实现了含锑砷金精矿资源的高值化、资源化利用。

Experimental study on key integrated technology for comprehensive utilization of antimony-arsenic-bearing gold concentrate

in this paper, direct cyanidation test, two stage roasting cyanidation test, direct cyanidation-flotation recovery of antimony-flotation tailings two stage roasting cyanidation test were carried out for a gold concentrate containing antimony and arsenic. The results show that the primary direct cyanidation, the secondary cyanidation tailings flotation enrichment of antimony concentrate, and the third stage two-stage roasting cyanidation of antimony flotation tailings are the key integrated technical methods, the leaching rate of gold and silver from gold concentrate containing antimony and arsenic is 31.22% and 85.19% , respectively. Antimony concentrate with antimony content of 38.80% is produced from cyanide tailings flotation. The concentrate yield is 10.50% and antimony recovery is 90.94% , the recovery of gold, silver and antimony from antimony flotation tailings by two-stage roasting is 90.07% and 52.70% , respectively. The comprehensive recovery of gold, silver and antimony is 93.56% , 92.99% and 90.94% , respectively, the comprehensive recovery effect of valuable metal resources is obviously improved, and the high-value and resourceful utilization of sb-as bearing gold concentrate is realized.