石膏对夜长坪钼钨矿选矿效果的影响研究  

Study on influence of gypsum on flotation process in the yechangping wolfram-molybdenum ore

作　　者：马驰[1,2] 赵平[1,2] 张艳娇[1,2] 常学勇[1,2] 王守敬[1,2] 

机构地区：[1]中国地质科学院郑州矿产综合利用研究所,郑州450006 [2]国家非金属矿资源综合利用工程技术研究中心,郑州450006

出　　处：《中国矿业》2014年第12期117-119,共3页China Mining Magazine

基　　金：国土资源部公益性行业科研专项资助(编号:201211067)

摘　　要：针对河南卢氏夜长坪大型钼钨矿,在查清了该矿主要矿物的组成的基础上,详细研究了石膏对该矿选矿的影响。石膏在水解作用下使得矿浆中含有大量的钙离子,消耗大量的选矿药剂,这些钙离子与NaCO3发生反应生产氢氧化钙,氢氧化钙以罩盖的形式附着在矿物表面,导致矿物之间分选性降低,这是该矿难选的最主要原因。There is a super large wolfram‐molybdenum ore deposit in Lushi country ,Henan Province . Based on main minerals and accompany minerals category and content of samples .We study the impact of processing and gypsum .Hydrolysis reaction of gypsum in the pulp leads to a lot of calcium ions which consumes a lot of reagent ,Calcium ions react with NaCO3 forming calcium hydroxide .the fine grains of calcium hydroxide are prone to cover on the coarse grains which led to reduced separation between minerals , which is one of the most serious reasons of refractory ore .

关 键 词：钼钨矿 石膏 碳酸钠 水玻璃 罩盖 

分 类 号：TD952[矿业工程—选矿]