Developing new reagent for selectively precipitation of molybdenum from tungstate solution

来源期刊：中国有色金属学报(英文版)2003年第1期

论文作者：李洪桂 霍广生 孙培梅 赵中伟 李运姣 苏鹏抟 刘茂盛

文章页码：184 - 187

Key words：tungsten; molybdenum; separation; precipitate

Abstract: Based on the difference of microscopic properties between MoS₄^2- and WO₄^2-, a series of new reagents, CuS, NiS, CoS, PbS, HgS, as well as ZnS, were developed for separation of molybdenum from tungstate solution. GPT(Generalized Perturbation Theory) calculation reveals they are more reactive with MoS₄^2- than WO₄^2-. In laboratory test, CoS, NiS and CuS can remove more than 99.3%Mo. PbS and FeS are also effective for precipitation of Mo, but HgS and ZnS are almost useless. Taking environment and economy factors into consideration, CuS is chosen as the most suitable reagent.