摘要
对目前ZnSO4 溶液除Mn2 + 的几种工艺进行评述 ,提出了用 (NH4 ) 2 S2 O8直接除去ZnSO4溶液中Mn2 + 的工艺 ,并对影响除锰率的pH值、温度、恒温时间和陈化时间等因素进行详细的分析和讨论。通过实验 ,得到了用 (NH4 ) 2 S2 O8直接除去ZnSO4 溶液中Mn2 + 的最佳工艺条件 :pH =5 .4,温度为 90℃ ,恒温时间为 4h ,除杂剂过量 2 0 %,陈化时间为 3h ,除锰率可超过 99.86 %。
Several currently processes of removing manganese(Ⅱ)ion in zinc sulfate solution are described in this paper. At the same time, a process of directly removing manganese(Ⅱ)ion in zinc sulfate solution by ammonium peroxysulphate is introduced and the effect of pH value, temperature and time on the manganese-removal rate of zinc sulfate solution is analyzed and discussed in detail in this one. According to experiment , the optimum conditions obtained are as follows: pH=5.4,temperature=90 ℃,heated-time=4 h,aging time=3 h,the removal substance above of 20%. Under the optimum conditions ,the manganese-removal rate is above 99.86%.
出处
《有色矿冶》
2002年第2期38-41,共4页
Non-Ferrous Mining and Metallurgy
基金
云南省选冶新技术重点室基金资助项目
