难选铅锌矿石清洁选矿新工艺小型试验研究  

Research of New Cleaner Technological Process on Flotation of Intricate Lead-Zinc Sulphide Ore

作　　者：罗仙平[1] 王淀佐[2] 孙体昌[1] 邱廷省[3] 李国金[3] 欧阳魁[3] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]中国工程院,北京100038 [3]江西理工大学环境与建筑工程学院,江西赣州341000

出　　处：《江西理工大学学报》2006年第4期4-7,共4页Journal of Jiangxi University of Science and Technology

基　　金：江西省自然科学基金(项目号:0450068).

摘　　要：会理锌矿矿石性质多变、矿物组成复杂、锌铅含量比值大、伴生银嵌布粒度细、浮选磨矿细度又达不到设计要求,致使铅锌分离困难,长期以来生产指标难以提高．通过实验室研究获得了会理锌矿铅锌电位调控浮选分离的最佳条件：矿浆pH 11．8～12．2,矿浆电位-252～-272 mV,(znSO_4+YN)作锌矿物抑制剂,乙硫氮(DDTC)作选铅的捕收剂,石灰作矿浆pH与矿浆电位的调整与稳定剂．Greatly variable ore properties, complex mineral composition, large ratio of lead and zinc contents, fine dissemination particle of associated silver, and grind fineness of flotation feed being unable to meet the designed requirement at Huili Zinc Mine, led to a difficult separation of lead and zinc. Therefore, it was hard to improve the production performances. The flotation separation of galena from sphalerite and marmatite had been achieved by using potential- controlled flotation technology. The optimum separation conditions of pH value 11.8- 12.2 and the pulp potential -252- -272 mV were determined by laboratory-scale tests. （ZnSO4 ＋ YN） was used as sphalerite and marmatite flotation depressant, diethyl dithiocarbamate （DDTC） was used as galena flotation collector and lime was used as a regulator and stabilizer of pH and pulp potential.

关 键 词：抑铅浮锌优先浮选分离 电位调控浮选 矿浆pH与矿浆电位 组合抑制剂 

分 类 号：TD952[矿业工程—选矿]