研究烟化炉次氧化锌中砷的物相类型。结果表明:按砷的物相可将次氧化锌分为3种类型。在一型次氧化锌中砷以As2O3形态存在,而在二型和三型次氧化锌中砷分别以亚砷酸锌(Zn(AsO2)2)和砷酸铅(Pb(As2O6),Pb4As2O9)形态存在。在热力学分析基础上,对二型次氧化锌进行浸出脱砷。结果表明:采用30g/LNaOH溶液,在液固比3、温度20°C的条件下,砷的浸出率在1h内可达到65%～70%,而铅、锌的损失均小于1%。 Study on the phase type of arsenic in fuming furnace secondary zinc oxide. The results show that: according to the arsenic phase zinc oxide can be divided into three types. In the first type of zinc oxide, the arsenic is present in the form of As2O3, while in the second and third types of zinc oxide, arsenic is composed of zinc arsenite (Zn (AsO2) 2), lead arsenate (Pb2O4), Pb4As2O9 Form exists. On the basis of thermodynamic analysis, the second type zinc oxide leaching arsenic removal. The results show that the leaching rate of arsenic can reach 65% ~ 70% in 1 h with the ratio of liquid to solid 3 and the temperature of 20 ° C, while the loss of lead and zinc is less than 1% with 30 g / L NaOH solution.