高铁酸钾处理钨湿法冶金萃取废液的研究

Study on Decontamination of Solvent Extraction's Wastewater in Tungsten Hydro-Metallurgy by Potassium Ferrate

以高铁酸钾处理钨湿法冶金萃取废水，研究了pH值、高铁酸钾用量、温度和反应时间等条件对处理效果的影响．在初始pH值为5～6或9～10，高铁酸钾与有机物质量比为2：1，温度为40℃，反应为20min时，去除率达87．3％．

Tbe solvent extraction＇s wastewater in tungsten hydro-metallurgy was decontaminated by potassium ferrate in this paper ,the effect of mass ratio of potassium fen-ate to organic matter,beginning pH, temperature and duration to decontamination was studied. Best decontamination rate （57.3 % ） was obtained under the optimum conditions：mass ratio of potassium ferrate and organic matter 2：1 ,the beginning pH 5 - 6 or 9 - 10, temperature 40 ℃ and the duration 20 min.