A study on the sulphuric acid leaching of copper converter slag in the presence of dichromate
A study on the sulphuric acid leaching of copper converter slag in the presence of dichromate
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DOI：
10.1016/j.mineng.2003.11.002
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发表时间：
2004-03-01
影响因子：
4.8
通讯作者：
Tumen, F
中科院分区：
文献类型：
--
作者：
Altundogan, HS;Boyrazli, M;Tumen, F
研究了重铬酸钾-硫酸浸出剂氧化浸出铜转炉渣中铜、钴、锌、铁的特性。实验结果表明，重铬酸盐的存在对金属的萃取有较大的影响。由于母液中铜的浸出量高，铁的浓度低，用重铬酸钾和硫酸浸出剂浸出铜似乎是可行的。随着重铬酸盐浓度的增加，铜的浸出率增加，而钴、锌和铁的浸出率显著下降。(C)2003爱思唯尔有限公司。保留所有权利。
In this study, extraction characteristics of Cu, Co, Zn and Fe from copper converter slag by oxidative leaching with potassium dichromate-sulphuric acid lixiviant were investigated. The experimental results indicated that the presence of dichromate has a large influence on the extraction of metals. Cu recovery seems to be feasible by leaching with a lixiviant containing potassium dichromate and sulphuric acid because of high Cu extractions and low Fe concentrations in pregnant liquor. Also, copper extraction yields increased by increasing the dichromate concentration while Co, Zn and Fe extractions considerably decreased. (C) 2003 Elsevier Ltd. All rights reserved.