新疆某矿山浮选试验研究

针对新疆某黄金矿山的矿石性质变化造成现有的浮选药剂与矿石性质不匹配，导致生产指标失稳，使得金的回收率产生较大波动的问题，进行了合理的实验室试验和全流程闭路试验。根据矿石的工艺矿物学特征，以传统的硫化矿浮选工艺为基础，采用富硫化物的方法辅之高效的浮选药剂，提高了硫化矿中的有价成分金的回收率。在实验室条件试验的基础上确定了合理的工艺流程、浮选药剂和浮选时间，品位为6.5×10^-6的原矿金回收率由原来的84%提高到90%，浮选金精矿品位为60×10^-6，尾矿为0.4×10^-6。在原矿品位和精矿品位不变的条件下，实验工艺流程更环保，浮选时间更合理，回收率更高，为企业创造了可观的经济效益，同时也节约了资源。

Research on Flotation Test at a Certain Mine in Xinjiang

The property change of gold mining ore led to flotation reagents and ore properties mismatching, unstability of the production quota,and great fluctuation of the recovery rate of gold.Therefore,it was necessary to complete the reasonable laboratory test and whole process closed circuit experiment.According to process mineralogy characteristics of the ore and based on the traditional of sulphide ore flotation process,the method of rich sulfide was adopted combined with high efficientive flotation reagents,and we improved the recovery rate of gold sulfide ore of the valuable components.Meanwhile,the reasonable technological process,flotation reagents and flotation time were identified on the basis of the laboratory test.Gold recovery rate of mine ore with grade of 6.5×10^-6 increased from 84% to 90%,and flotation gold concentrate grade was 60×10^-6,tailings was 0.4×10^-6.Under the condition that ore grade and the concentrate grade was constant,the experiment process was more environmental protection,flotation time was more reasonable and the recovery rate was higher,all of which not only created considerable economic benefits,but also saved the resources.