白铅矿的硫化电位控制浮选机理研究  

Study on Mechanism of Sulfide Potential-controlled Flotation of Cerussite

作　　者：张方齐[1] 陈经华[1] 吴熙群[1] 

机构地区：[1]北京矿冶研究总院矿物加工科学与技术国家重点实验室,北京102628

出　　处：《有色金属（选矿部分）》2015年第3期19-23,60,共6页Nonferrous Metals（Mineral Processing Section）

基　　金：国家自然科学基金资助项目(51004015)

摘　　要：以乙基黄药为捕收剂,硫化钠为硫化剂,通过单矿物浮选试验系统地研究了白铅矿浮选时硫化钠用量、硫化时间、搅拌条件、加药方式以及矿浆p H对硫化过程中矿物的浮游性、矿浆电位、硫离子电极电位的影响。采用多元回归方法建立了浮选回收率与硫化电位的数学模型,数学模型很好地反映了两者之间的关系。使用相关系数法分析了各因素对硫化电位的影响趋势及两者间的相关性。利用Matlab数学软件拟合出硫化电位与主要影响因子间的数学模型方程,再结合回收率与电位的数学模型,可以实现对硫化过程及时、合理的调控。The monomineral flotation test which for investigating the influence of the dosage of sodium sulfide and collector, sodium sulfide treating time, the pH of pulp, impeller speed of flotation and the methods of adding sodium sulfide and collector on the floatability of mineral, pulp potential and sulfide ion electrode potential have been conducted using ethyl xanthate as collector, sodium sulfide as sulfide reagent. Based on multivariable regression method, the mathematical model which reflects the relationship between flotation recovery and sulfide potential quite well was established. The influence trend of each factor on the sulfide potential and correlation between them were studied upon the correlation coefficient. Mathematical model equation between the sulfide potential and main factors was fitted out by using Matlab. The combination of mathematical models between recovery and potential, factors and potential can realize microscopic, timely and rational optimization control of the process of sulfidation.

关 键 词：白铅矿 硫化过程 多元回归分析 数学模型 硫化电位控制浮选机理 

分 类 号：TD952.2[矿业工程—选矿] TD923.7