黄金
黃金
황금
GOLD JOURNAL
2014年
4期
50-57
,共8页
崔焱%林艳%谢刚%杨大锦
崔焱%林豔%謝剛%楊大錦
최염%림염%사강%양대금
锑%电解精炼%H2 SO4 -NH4 F-SbF3体系
銻%電解精煉%H2 SO4 -NH4 F-SbF3體繫
제%전해정련%H2 SO4 -NH4 F-SbF3체계
antimony%electro-refining%H2 SO4-NH4 F-SbF3 electrolyte system
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%。
採用循環伏安法和線性掃描技術等電化學研究方法,繫統研究瞭電解液體繫中各陰暘離子對銻電沉積過程的影響。通過測定Sb3+、NH4+、F-、SO2-4及草痠等組分不同質量濃度下體繫的循環伏安麯線、穩態極化麯線及塔菲爾麯線,分析瞭各離子在電解過程中的電化學行為及作用,確定瞭H2 SO4-NH4 F-SbF3電解液體繫閤適的成分為Sb3+90~120 g/L、NH4+50 g/L、F-80 g/L、H2 SO4360 g/L、H2 C2 O44~10 g/L。在此電解液體繫下進行瞭粗銻的電解精煉試驗,陰極銻純度為99.9436%,達到國標1號精銻標準,陰極電流效率為97.60%。
채용순배복안법화선성소묘기술등전화학연구방법,계통연구료전해액체계중각음양리자대제전침적과정적영향。통과측정Sb3+、NH4+、F-、SO2-4급초산등조분불동질량농도하체계적순배복안곡선、은태겁화곡선급탑비이곡선,분석료각리자재전해과정중적전화학행위급작용,학정료H2 SO4-NH4 F-SbF3전해액체계합괄적성분위Sb3+90~120 g/L、NH4+50 g/L、F-80 g/L、H2 SO4360 g/L、H2 C2 O44~10 g/L。재차전해액체계하진행료조제적전해정련시험,음겁제순도위99.9436%,체도국표1호정제표준,음겁전류효솔위97.60%。
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 %.