粗三氧化二砷的提纯方法,国内已有电热回转窑法和竖炉挥发法等。江西赣州钴冶炼厂近两年来采用电炉直接挥发提纯粗三氧化二砷获得成功。 该工艺的主要特点及过程是:采用真空输送和 Crude arsenic trioxide purification method, the domestic electric rotary kiln method and shaft furnace evaporation method. Jiangxi Ganzhou cobalt smelter in the past two years by electric furnace direct volatilization of crude arsenic trioxide to be successful. The main features of the process and the process is: the use of vacuum transport and