摘要
为查明某铅锌矿选锌尾矿回收硫资源过程中硫损失的原因,对该矿山选锌尾矿进行工艺矿物学研究。研究结果表明,样品中主要可供回收的有用矿物是黄铁矿,其次为方铅矿和闪锌矿,脉石矿物主要是石英、方解石和白云石/铁白云石,黄铁矿的含量较高,其解离度为94.31%。基于工艺矿物学研究并结合取样分析,推荐两种提高硫回收率的方案:1.建立新的分选流程,对浮选尾矿进行再磨浮选,对旋流器溢流进行再选;2.在已有的选硫流程基础上进行改进,通过预先分级,将锌尾分为粗粒级和细粒级两部分,各自单独进行分选,粗粒级部分进行再磨浮选,细粒级部分直接浮选。
In order to find out the reason of the sulfur loss in the process of recovering sulfur resource from the tailings of a lead-zinc mine, the process mineralogy of the zinc-selective tailings in the mine was studied. The results show that the useful mineral samples that can be recovered in the sample are pyrite, followed by galena and sphalerite. The gangue minerals are mainly quartz, caENTlcite and dolomite / iron dolomite. The content of pyrite is high, and the degree of dissociation is 94.31%. Based on process mineralogy research combined with sampling analysis, two options for increasing sulfur recovery are recommended： 1 Establish a new separation process, re-float flotation of the flotation tailings, and re-election the cyclone overflow; 2 On the basis of the existing sulfur-selecting process, the zinc tailings is divided into two parts, coarse-grained and fine-grained, by separate sorting, and each is separately sorted, and the coarse-grained part is regulated and floated. The fine fraction is directly flotation.
作者
邓小龙
李茂林
徐寒冰
崔瑞
姚伟
Deng Xiaolong;Li Maolin;Xu Hanbing;Cui Rui;Yao Wei(School of Resources and Environmental Engineering Wuhan University of Science and Technology,Key Laboratory of Efficient Utilization of Metallurgical Mineral Resources and Agglomeration of Hubei Province,Wuhan Huhei,China;Changsha Res~earch Institute of Mining and Metallurgy Co.Ltd.,Changsha,Hunan,China)
出处
《矿产综合利用》
CAS
北大核心
2018年第5期93-96,156,共5页
Multipurpose Utilization of Mineral Resources
关键词
回收率
工艺矿物学
尾矿
SRate of recovery
Process mineralogy
Tailings
