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研究了用硫化氢脱除铜电解废液杂质(砷、锑、铋),考察了硫化氢过量系数、反应温度、反应时间及搅拌速度对铜电解废液脱杂的影响，通过响应面法进一步优化试验条件，并在该条件下进行试验验证。结果表明：最优试验条件为硫化氢过量系数1.9,反应温度68.1℃,反应时间2.1 h,搅拌速度524 r/min;在最优条件下，铜电解废液杂质平均脱除率可达94.2%。采用该法确定的优化工艺参数可靠且适用，不会影响后续镍元素的回收。
Abstract：Removal of impurities(arsenic, antimony, bismuth) from copper electrolytic waste liquid by hydrogen sulfide was studied.The effects of the excess coefficient of hydrogen sulfide, reaction temperature, reaction time and stirring speed on the impurity removal of copper electrolytic waste liquid were investigated.The experimental conditions were further optimized by the response surface methodology, and the experiments were verified under these conditions.The results show that the optimal test conditions are as follows: the excess coefficient of hydrogen sulfide is 1.9,the reaction temperature is 68.1 ℃,the reaction time is 2.1 h, and the stirring speed is 524 r/min.Under the optimal conditions, the average impurity removal rate of copper electrolysis waste liquid can reach 94.2%.The optimized process parameters determined by the method are reliable and applicable, and will not affect the subsequent recovery of nickel elements.
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基本信息:
DOI：10.13355/j.cnki.sfyj.2025.05.014
中图分类号:TF811
引用信息:
[1]吕喜聪,唐文涛,梁柱俊等.基于响应曲面法的铜电解废液脱杂工艺参数优化研究[J].湿法冶金,2025,44(05):681-691.DOI:10.13355/j.cnki.sfyj.2025.05.014.
基金信息: