第 22 卷第 9 期中国有色金属学报 2012 年 9 月
The Chinese Journal of Nonferrous Metals Sep. 2012
文章编号:10040609(2012)09266205
电解锰阳极渣还原浸出锰
牛莎莎,王志兴,郭华军,李新海,彭文杰,胡启阳,张云河
(中南大学冶金科学与工程学院,长沙 410083)
摘要:针对电解锰阳极渣难处理、铅含量高的缺点,提出利用桔子皮作还原剂在硫酸体系中还原浸出电解锰阳
极渣工艺。以国内某电解锰厂阳极渣为原料,对桔子皮加入量、浸出时间、浸出温度以及硫酸加入量等工艺参数
进行探讨和优化。结果表明:在浸出温度为 80 ℃,时间为 2 h,固液比为 1:4,桔子皮/锰阳极渣质量比为 1:5,
酸渣质量比为 :1 的条件下,锰的浸出率可达 96%,铅的浸出率仅为 %,有效地实现了铅锰分离。实验证明,
在硫酸体系中利用桔子皮作还原剂浸出电解锰阳极渣的方法可行。
关键词:电解锰阳极渣;桔子皮;还原浸出
中图分类号:TF111 文献标志码:A
Reductive leaching of manganese from manganese anode slag
NIU Shasha, WANG Zhixing, GUO Huajun, LI Xinhai, PENG Wenjie, HU Qiyang, ZHANG Yunhe
(School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China)
Abstract: Orange peel was used as reductant for reductive leaching of manganese anode slag, which was featured by
intractable treatment and leadrich, and sulfuric acid was used as leaching solvent. By using manganese anode slag from
electrolytic manganese plant as raw materials, the effects of dosage of orange peel and sulfuric acid, leaching time and
temperature on the leaching ratio were studied. The results show that the leaching recovery of Mn reaches 96%, while the
leaching recovery of Pb is only % under the conditions of leaching temperature 80 ℃, leaching time 2h, the ratio of
solid to l
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