硫酸盐体系中黄铁矿阳极氧化动力学  

ANODIC OXIDATION KINETICS OF PYRITE IN SOLUTION OF SULPHURIC ACID AND SULPHATE

作　　者：尹周澜[1] 蒋汉瀛[1] 舒余德[1] 赵瑞荣[1] 

机构地区：[1]中南工业大学

出　　处：《有色金属》1989年第2期54-59,共6页Nonferrous Metals

摘　　要：本工作采用 Z-80单板机控制的电化学测试系统,结合多种电化学研究方法,在硫酸盐体系中研究了天然黄铁矿阳极氧化动力学规律。With the experimental system controlled by Z-80 single board microcomputer, the anodic oxidation kinetics of pyrite in the solulion of sulphurie acid and sulphate was investigated by various kinds of clectrochcmical methods.It was discovered that the overall oxidation reaction could be divided into two clectrochemically controlled competing reacrtions: FeS_2=Fe^(3)+2S+3e (1) FeS_2+8H_2O=Fe^(3)+2SO^(2-)_4+16H^++15e (2) The competitive power of(1)becomes smaller and that of(2)larger with the in- crease of pot...

关 键 词：阳极氧化 电化学 黄铁矿 铁矿物 电极反应 电化学反应 电极电位 线性电位扫描 电子传递系数 电流阶跃 电位阶跃 控制步骤 稳定电位 稳态极化曲线 硫酸盐体系 电极过程 动力学 

分 类 号：TD862[矿业工程—金属矿开采] TF80[矿业工程—矿山开采]