中南大学学报（自然科学版）2012，Vol.43Issue(3)：821-826,6.
砷锑价态对铜电解液中砷锑铋脱除率的影响
Effect of valences of arsenic, antimony on removal rates of arsenic,antimony and bismuth in copper electrolyte
摘要
Abstract
Arsenic(V) and antimony( V) in copper electrolyte were reduced to arsenic(III) and antimony(E) with the aid of sulfur dioxide, and n(As( V ))/n(As(T)) and n(Sb( V ))/n(Sb(T)) were adjusted, then the copper electrolyte was concentrated to crystallize, As, Sb, Bi in the copper electrolyte could be removed effectively. The results indicate that when the volume of the copper electrolyte is 3 L, Cu concentration is 32 g/L, As(T) concentration is 9.36 g/L, Sb(T) concentration is 0.65 g/L, Bi concentration is 0.45 g/L, both n(As(V))/n(As(T)) and "(Sb(V))/n(Sb(T)) are 0.4, the removal rates of Cu, As, Sb and Bi are 82%, 62%, 55% and 85% respectively after copper electrolyte is concentrated and the ratio of initial volume and final volume is 2.5 time to crystallized at 10 °C. XRD analysis shows that the crystallized product includes CuSO4·5H2O and As2O3. XRF analysis shows that the content of Cu, As, Sb and Bi in the crystallized product are 29%, 5%, 0.37% and 0.2% respectively.关键词
铜电解液/SO2还原/As2O3/净化/浓缩Key words
copper electrolyte/ reducing by sulfur dioxide/ arsenic trioxide/ purification/ evaporation分类
矿业与冶金引用本文复制引用
郑雅杰,周文科,彭映林,马玉天..砷锑价态对铜电解液中砷锑铋脱除率的影响[J].中南大学学报（自然科学版）,2012,43(3):821-826,6.基金项目
广东省教育部产学研重大项目(2009B090200053) （2009B090200053）
