四川拉拉铜矿尾矿中的铜钴金等有价元素资源及其综合利用  

Valuable Element Resources and Comprehensive Utilization in the Tailings of Lala Copper Mine,Sichuan Province

作　　者：祝波 蒋晓丽 毛益林[2] 罗丽萍[2] Zhu Bo;Jiang Xiaoli;Mao Yilin;Luo Liping(109 Geological Team,Sichuan Bureau of Geology and Mineral Resources,Chengdu,Sichuan,China;Institute of Multipurpose Utilization of Mineral Resources,Chengdu,Sichuan,China)

机构地区：[1]四川省地矿局一〇九地质队,四川成都610081 [2]中国地质科学院矿产综合利用研究所,四川成都610041

出　　处：《矿产综合利用》2023年第5期142-147,共6页Multipurpose Utilization of Mineral Resources

摘　　要：这是一篇矿业工程领域的文章。拉拉铜矿是四川著名的铜铁多金属矿床,在矿山生产几十年后产生了大量的工业固体废弃物,其中铜、钴、金等几种有用组分元素在尾矿中含量仍然偏高,具有巨大的回收潜力。拉拉铜矿的尾矿未经过系统的选矿回收实验。研究通过对拉拉铜矿尾矿样品的研究,在工艺矿物学的基础上,采用“铜硫混合浮选—铜硫分离—尾矿选铁”的工艺流程对其进行回收,获得Cu品位13.38%、回收率21.19%的铜次精矿;Co品位0.32%、回收率17.20%的硫钴精矿;以及TFe品位60.99%的铁精矿。并对其有价元素回收后的尾矿进行云母和硅酸盐等矿物的回收,获得较优质量的云母精矿产品,可获得K_(2)O品位8.67%,回收率35.26%的云母精矿。将云母回收后的尾矿进行硅肥的制备,获得硅肥产品有效硅含量38.75%,可消耗硅肥原料43.59%。This is an essay in the field of mining engineering.Lala Copper Mine is a famous copper-iron polymetallic deposit in Sichuan province.In the past several decades of mine production,a large number of industrial solid wastes have been produced,among which several useful elements such as copper,cobalt and gold are still relatively high in tailings,which has great recovery potential.The tailings of Lala Copper Mine have not gone through systematic beneficiation recovery experiment.Based on the study of Lala copper mine tailings samples,on the basis of process mineralogy study,the process of"copper-sulfur mixed flotation-copper-sulfur separation-iron separation from tailings"was used to recover it,and a copper secondary concentrate with Cu grade of 13.38%and recovery of 21.19%was obtained.Sulfur cobalt concentrate with Co grade of 0.32%and recovery of 17.20%;And iron concentrate with TFe grade of 60.99%.After the recovery of valuable elements,mica and silicate minerals were recovered from the tailings to obtain mica concentrate of better quality,and a mica concentrate with K_(2)O grade of 8.67%and recovery of 35.26%was obtained.The tailings recovered from mica were used to prepare silicon fertilizer,the available silicon content of silicon fertilizer product was 38.75%,and the silicon fertilizer raw material could be consumed 43.59%.

关 键 词：矿业工程 尾矿 综合利用 拉拉铜矿 

分 类 号：TD955[矿业工程—选矿]