某斑岩型钼矿石浮选试验研究

Experimental research on the flotation of a porphyry molybdenum ore

针对某斑岩型钼矿石浮选钼精矿含杂不理想问题,进行了浮选试验研究,考察了药剂制度、磨矿细度等影响因素。结果表明:采用铜钼混合浮选—铜钼分离浮选工艺流程,在最佳药剂制度、再磨细度条件下,获得的钼精矿品位57.13%,含铜、铅指标大幅度降低,含铜从0.2%~0.5%降至0.037%,含铅从0.2%~0.83%降至0.014%,钼回收率从87%左右提高至91.02%,为选矿工艺优化提供技术依据。

The impurity content in the molybdenum concentrate produced from the flotation process of a porphyry molybdenum ore is high.To solve the problem,experimental research on the flotation process is carried out and investigates the influencing factors such as reagent regime and grinding fineness.The results show that when the process of the bulk flotation of copper and molybdenum-flotation to separate copper and molybdenum is adopted,and the optimal reagent regime and regrinding fineness are applied,the molybdenum concentrate obtained has a grade of 57.13%,the copper and lead indexes are greatly reduced,the copper content decreases from 0.2%-0.5%to 0.037%,the lead content decreases from 0.2%-0.83% to 0.014%,the molybdenum recovery rate increases from about 87%to 91.02%.The research provides a technical basis to optimize the ore-dressing process.