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响应曲面法优化镍转炉渣氧压选择性浸出工艺

黄斐荣 廖亚龙 王祎洋 曹磊

黄斐荣, 廖亚龙, 王祎洋, 曹磊. 响应曲面法优化镍转炉渣氧压选择性浸出工艺[J]. 环境科学研究, 2016, 29(6): 894-899.
引用本文: 黄斐荣, 廖亚龙, 王祎洋, 曹磊. 响应曲面法优化镍转炉渣氧压选择性浸出工艺[J]. 环境科学研究, 2016, 29(6): 894-899.
HUANG Feirong, LIAO Yalong, WANG Yiyang, CAO Lei. Optimization of Pressure Oxidative Acid Leaching of Nickel Converter Slag by Response Surface Methodology[J]. Research of Environmental Sciences, 2016, 29(6): 894-899.
Citation: HUANG Feirong, LIAO Yalong, WANG Yiyang, CAO Lei. Optimization of Pressure Oxidative Acid Leaching of Nickel Converter Slag by Response Surface Methodology[J]. Research of Environmental Sciences, 2016, 29(6): 894-899.

响应曲面法优化镍转炉渣氧压选择性浸出工艺

基金项目: 国家自然科学基金项目(21266011,21566017)

Optimization of Pressure Oxidative Acid Leaching of Nickel Converter Slag by Response Surface Methodology

  • 摘要: 为了优化镍转炉渣加压条件下H2SO4选择性浸出Co、Ni、Cu,抑制Fe浸出的工艺,采用响应曲面法的中心组合设计原理,建立影响选择性浸出率的二次多项式数学模型,研究浸出温度、c(H2SO4)及液固比及上述因素两两交互作用对提高Co、Ni、Cu浸出率及减少Fe浸出率的影响规律. 结果表明:浸出温度和c(H2SO4)对浸出率影响最显著,液固比次之. c(H2SO4)越高,Co、Ni、Cu和Fe的浸出率越高,而提高浸出温度有利于降低Fe浸出率. 响应曲面法优化获得的最佳工艺条件:浸出温度为210 ℃、c(H2SO4)为0.38 mol/L、液固比为4.25 mL/g,在该条件下,Co和Ni的浸出率均大于98%,Cu浸出率大于96%,Fe浸出率小于0.4%. 浸出控制参数优化后提高了有价金属的浸出率,同时也降低了Fe浸出率,实现了镍转炉渣中有价金属的回收及其与Fe的高效分离.

     

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出版历程
  • 收稿日期:  2015-11-19
  • 修回日期:  2016-02-25
  • 刊出日期:  2016-06-25

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