低碱条件下新型抑制剂实现铜硫高效分离的试验研究  

Experimental Study of Novel Inhibitors to Achieve Efficient Separation of Copper and Sulfur under Low Alkali Conditions

作　　者：张洋 崔毅琦[1,2,3] 童雄 王靖[1,2,3] 黄丹 闫增达 张宇 ZHANG Yang;CUI Yiqi;TONG Xiong;WANG Jing;HUANG Dan;YAN Zengda;ZHANG Yu(Faculty of Land and Resources Engineering,Kunming University of Science and Technology,Kunming 650093,China;State Key Laboratory of Clean Utilization of Complex Non-Ferrous Metal Resources,Kunming 650093,China;National and Local Joint Engineering Research Center for Green Comprehensive Utilization of Metal Tailings Resources,Kunming 650093,China)

机构地区：[1]昆明理工大学国土资源工程学院,昆明650093 [2]省部共建复杂有色金属资源清洁利用国家重点实验室,昆明650093 [3]金属矿尾矿资源绿色综合利用国家地方联合工程研究中心,昆明650093

出　　处：《有色金属工程》2024年第5期81-87,共7页Nonferrous Metals Engineering

基　　金：国家自然科学基金资助项目(52364032);云南省重大科技项目(202202AG050010)。

摘　　要：针对铜硫浮选分离过程中大量添加石灰引起的管道堵塞、矿浆环境差等问题,开发了一种新型黄铁矿抑制剂BY,应用于缅甸某硫化铜矿浮选试验并获得了良好的指标。该矿石含铜1.4%、硫8.95%,主要含铜矿物为黄铜矿,含硫矿物为黄铁矿和磁黄铁矿。采用抑制剂BY通过一粗两精一扫的浮选工艺流程,获得的铜精矿Cu品位为25.13%、回收率为93.47%,S品位为33.97%、回收率为19.93%。与石灰相比,精矿中铜品位和回收率分别提高了0.99和0.16个百分点,硫品位和回收率分别降低了1.01和2.14个百分点,闭路试验粗选pH值可由12降低至9.7,可实现低碱环境中铜硫的高效分离。In order to solve the problems of pipeline blockage and poor pulp environment caused adding a large amount of lime in the process of copper sulfide flotation separation,a new pyrite inhibitor BY was developed and applied to the flotation test of a copper sulfide ore in Myanmar.The ore contains 1.4%copper and 8.95%sulfur,the main copper mineral is chalcopyrite,and the sulfur minerals are mainly pyrite and pyrrhotite.A copper concentrate with Cu grade of 25.13%and recovery of 93.47%,S grade of 33.97%and recovery of 19.93%were obtained by a flotation process of one roughing,two cleanings and one scavenging with the inhibitor BY.Compared with lime,the copper grade and recovery in the concentrate are increased by 0.99 and 0.16 percentage points respectively,and the sulfur grade and recovery are reduced by 1.01 and 2.14 percentage points respectively.The pulp pH value of the roughing flotation in locked-cycle test can be reduced from 12 to 9.7,realizing a efficient separation of copper and sulfur in low alkali environment.

关 键 词：铜硫分离 黄铁矿抑制剂 低碱 浮选 

分 类 号：TD952[矿业工程—选矿]