论文部分内容阅读
为回收粗硒真空熔炼提纯过程中硒渣溶解液中的硒，采用ＳＯ２还原法进行了研究。结果为：在温度小丁６０℃反应时间３０ｍｉｎ，硫酸浓度２００ｇ／Ｌ的条件下，硒还原率大于９５％，产品硒品位大于９９．５％．
In order to recover the selenium in the dissolving solution of selenium residue in the process of vacuum smelting and purification of crude selenium, the SO2 reduction method was studied. The results are as follows: the selenium reduction rate is more than 95% when the reaction temperature is 60 ℃, the reaction time is 30min and the concentration of sulfuric acid is 200g / L. The selenium product is more than 99.5%.