化工矿物与加工2026，Vol.55Issue(8)：30-38,9.DOI:10.16283/j.cnki.hgkwyjg.2026.08.005
基于新型组合捕收剂的滇西北某微细粒硫化铜矿回收试验研究
Experimental study on the recovery of a micro-fine copper sulfide ore in northwest Yunnan based on a new combined collector
摘要
Abstract
With the continuous development of copper resources in China,the ore properties gradually show the characteristics of'poor,fine and miscellaneous',and the difficulty of recovering micro-fine copper sulfide ore increases significantly.The traditional single collector has some problems in the separation process of micro-fine minerals,such as poor selectivity of reagents,low probability of collision between particles and bubbles,poor rheology of pulp,and more entrainment of gangue minerals,resulting in low flotation recovery.A new type of combined collector was deve-loped to improve the separation effect and enhance the flotation recovery of copper minerals according to the characte-ristics of fine disseminated particle size and high argillization degree of a copper sulfide ore in northwest Yunnan.Through X-ray diffraction(XRD)analysis,chemical multi-element analysis,phase analysis,scanning electron micros-copy(SEM)detection and other means,the process mineralogy characteristics of the raw ore were systematically investigated,and the effects of grinding fineness,combined collector type,ratio and dosage on the flotation effect of micro-fine copper sulfide ore were investigated.The results show that the copper grade of the copper ore is 0.36％,the main copper-bearing minerals are chalcopyrite,and the gangue minerals are mainly quartz,plagioclase,biotite and so on.The copper concentrate with Cu grade of 19.88％and recovery of 74.59％was obtained by the closed-circuit flotation process of one roughing,two cleaning and two scavenging under the conditions of grinding fineness of-0.074 mm accounting for 65％,mass ratio of MCO to LMO collector of 1:1 and dosage of 60 g/t.Compared with the single collector,the copper grade and recovery in the concentrate were increased by 0.07 and 1.96 percentage points,respectively,and the metal distribution rate of-20 μm in the tailings was reduced by 7.80 percentage points.The research results can provide a reference for the efficient flotation recovery of the same type of micro-fine copper sulfide ore.关键词
微细粒硫化铜矿/组合捕收剂/浮选回收/工艺矿物学特征/磨矿细度/闭路试验/开路试验Key words
micro-fine copper sulfide ore/combined collector/flotation recovery/process mineralogical characteris-tics/grinding fineness/closed-circuit test/open-circuit test分类
矿业与冶金引用本文复制引用
杨楚瑜,崔毅琦,周克,叶楠,朱志辉,童雄..基于新型组合捕收剂的滇西北某微细粒硫化铜矿回收试验研究[J].化工矿物与加工,2026,55(8):30-38,9.基金项目
云南省重大科技项目(202202AG050010). （202202AG050010）
