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Experimental Study on Ammonium Ferrous Sulfate for Reduction of Chromium Slag
Pages: 135-137
Year: Issue:  2
Journal: Journal of Liaoning Institute of Technology(Natural Science Edition)

Keyword:  chromium slagwet-method reducingammonium ferrous sulfate;
Abstract: 铬渣是重金属废渣的一种,其中水溶性六价铬和酸溶性六价铬的浸出,严重污染环境。湿法解毒是处理铬渣的一种重要手段,实验选用硫酸亚铁铵还原铬渣浸出液中的六价铬。研究结果表明,在酸性范围内,六价铬的还原效果最明显,硫酸亚铁铵的加入量为理论计算的1.234倍时,铬渣中浸出的六价铬最大程度地被还原。还原反应过程中pH、硫酸亚铁铵用量、反应时间对六价铬的转化率具有重要影响。
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