磨矿因素对黄药在硫化矿浮选过程中分布的影响  

Effects of grinding factors on distribution of xanthate in flotation process of sulfide ore

作　　者：徐承焱[1,2] 孙体昌[1,2] 鄢功军 寇珏[1,2] 王培龙[1,2] XU Chengyan;SUN Tichang;YAN Gongjun;KOU Jue;WANG Peilong(Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines,University of Science and Technology Beijing,Beijing 100083,China;School of Civil and Resources Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083 [2]北京科技大学土木与资源工程学院,北京100083

出　　处：《中国矿业》2019年第1期150-155,共6页China Mining Magazine

基　　金：国家自然科学基金项目资助(编号:51474018;51674018);中国地质调查局地质调查项目资助(编号:12120113006900)

摘　　要：以硫含量差别较大的3种含硫的铁矿石和纯黄铁矿为试样,研究了乙基黄药和丁基黄药在矿石浮选过程中,磨矿细度、磨矿介质及后续的浮选充气对药剂分布的影响。结果表明,采用钢棒介质磨矿,矿石表面的黄药分布率低,不利于黄药在其表面的吸附,而采用瓷球介质磨矿,矿石表面的黄药分布率高,有利于黄药在其表面的吸附;充气有利于矿石吸附黄药,可以提高矿石表面的黄药分布率,但采用瓷球介质磨矿后,充气对矿石吸附黄药的影响较小;磨矿介质对于纯黄铁矿吸附黄药的影响较小。Using three kinds of sulfur-containing iron ore with different sulfur content and single mineral of pyrite as samples,the effects of grinding fineness,grinding medium and subsequent aeration on the distribution of reagents in the ore flotation process were studied.The results show that grinding with steel rod medium,the distribution rate of xanthate on the surface of ore is low,which is not conducive to the adsorption of xanthate on its surface.When using porcelain ball as grinding medium,the distribution of xanthate on the surface of the ore is high,which is beneficial to the adsorption of xanthate on its surface.Aeration is favorable to the adsorption of xanthate by ore,which can increase the distribution rate of xanthate on the surface of ore.However,after grinding with porcelain ball medium,the effect of aeration on the adsorption of xanthate on ore is small.Grinding medium has little effect on the adsorption of xanthate by single mineral of pyrite.

关 键 词：磨矿介质 黄药 分布规律 硫化矿浮选 

分 类 号：TD952[矿业工程—选矿]