采用循环伏安法和线性扫描技术等电化学研究方法，系统研究了电解液体系中各阴阳离子对锑电沉积过程的影响。通过测定Sb3＋、NH4＋、F-、SO2-4及草酸等组分不同质量浓度下体系的循环伏安曲线、稳态极化曲线及塔菲尔曲线，分析了各离子在电解过程中的电化学行为及作用，确定了H2 SO4-NH4 F-SbF3电解液体系合适的成分为Sb3＋90～120 g／L、NH4＋50 g／L、F-80 g／L、H2 SO4360 g／L、H2 C2 O44～10 g／L。在此电解液体系下进行了粗锑的电解精炼试验，阴极锑纯度为99．9436％，达到国标1号精锑标准，阴极电流效率为97．60％。
The influences of various components including Sb 3 +,NH4+,H2 SO4 and H2 C2 O4 on electrolytic reaction were studied systematically by electrochemical methods such as cyclic voltammetry and linear scanning voltammetry . Cyclic voltammetry curves ,polarization curves and Tafel curves of antimony electro deposition process with different concentration of Sb 3+, NH4+, F-, SO2-4 and H2 C2 O4 were determined .The suitable composition range of H2 SO4-NH4 F-SbF3 electrolyte( Sb3+90~120 g/L,NH4+50 g/L,F-80 g/L,H2 SO4 360 g/L,H2 C2 O4 4~10 g/L) was determined after reviewing the actions of various ions on electrolytic reaction .In this electrolyte system , cathode antimony deposition layers are obtained with a purity of 99 .943 6 % which entirely meet the State Standard of First Grade .The cathode current efficiency is 97 .60 %.
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