A novel process for Fe recovery and Zn, Pb removal from a low-grade pyrite cinder with high Zn and Pb contents
A novel process for Fe recovery and Zn, Pb removal from a low-grade pyrite cinder with high Zn and Pb contents
复制标题
一种从高锌、铅含量的低品位黄铁矿烧渣中回收铁和去除锌、铅的新工艺
DOI：
10.1007/s12613-018-1648-x
复制
发表时间：
2018-09
期刊：
影响因子：
--
通讯作者：
Hong-yu Tian
中科院分区：
文献类型：
--
作者：
Cong-cong Yang;De-qing Zhu;潘建;Si-wei Li;Hong-yu Tian
由于硫铁矿烧渣年产量巨大，且有回收有价金属的潜力，以科普高品位矿产资源的逐渐枯竭，因此其综合利用的重要性日益突出。在这项工作中，一个新的过程，即，提出了一种高温氯化-磁化焙烧-磁选工艺，用于从含铁49.90wt%、锌1.23wt%、铅0.29wt%的低品位硫铁矿中回收铁、除锌、铅。对氯化条件（CaCl 2用量、温度、时间）和磁化焙烧条件（煤量、温度、时间）进行了研究。试验结果表明，该工艺可有效地从硫铁矿渣中回收铁，并脱除锌、铅。通过该工艺，在最佳条件下，可以去除97.06%的Zn、96.82%的Pb和大约90%的S，并且89.74%的Fe以磁铁矿的形式回收到最终产品中。获得了含有63.07wt%Fe、0.16wt%P、0.26wt%S和痕量有色金属（0.005wt%Cu、0.013wt%Pb和0.051wt%Zn）的纯化的磁铁精矿。通过与其他高品位铁精矿混合，该精矿可潜在地用作生产氧化球团的高品质进料。
Comprehensive utilization of pyrite cinders is increasingly important because of their huge annual outputs and potential valuable metals recovery to cope with the gradual depletion of high-grade mineral resources. In this work, a new process, i.e., a high-temperature chlorination–magnetizing roasting–magnetic separation process, was proposed for recovering Fe and removing Zn, Pb from a low-grade pyrite cinder containing 49.90wt% Fe, 1.23wt% Zn, and 0.29wt% Pb. Various parameters, including the chlorinating conditions (dosage of CaCl2, temperature, and time) and the magnetization roasting conditions (amount of coal, temperature, and time) were investigated. The results indicate that the proposed process is effective for Fe recovery and Zn, Pb removal from the pyrite cinder. Through this process, 97.06% Zn, 96.82% Pb, and approximately 90% S can be removed, and 89.74% Fe is recovered as magnetite into the final product under optimal conditions. A purified magnetite concentrate containing 63.07wt% Fe, 0.16wt% P, 0.26wt% S, and trace amounts of nonferrous metals (0.005wt% Cu, 0.013wt% Pb, and 0.051wt% Zn) was obtained. The concentrate can be potentially used as a high-quality feed material for producing oxidized pellets by blending with other high-grade iron ore concentrates.
登录
查看更多内容
影响因子：
--
作者：
Junhua Wei;Gui-you Yan;Bingkun Guo;Guilan Gao
通讯作者：
Junhua Wei;Gui-you Yan;Bingkun Guo;Guilan Gao
DOI：
10.2473/shigentosozai1953.95.1094_219
发表时间：
1979
期刊：
Journal of the Mining and Metallurgical Institute of Japan
影响因子：
--
作者：
F. Noguchi;Y. Ueda;T. Kudoh;Hiromichi Nagasue
通讯作者：
F. Noguchi;Y. Ueda;T. Kudoh;Hiromichi Nagasue
影响因子：
2.1
作者：
D. Zhu;T J Chun;J. Pan;Z Q Guo
通讯作者：
D. Zhu;T J Chun;J. Pan;Z Q Guo
影响因子：
0.9
作者：
L. I. Levin;N. M. Iakubtsiner;V. M. Sholeninov;G. F. Grigor'evykh
通讯作者：
L. I. Levin;N. M. Iakubtsiner;V. M. Sholeninov;G. F. Grigor'evykh
DOI：
10.1007/s11663-017-0913-0
发表时间：
2017-01
期刊：
Metallurgical and Materials Transactions B
影响因子：
--
作者：
Dong Chen;Hongwei Guo;Jifang Xu;Y. Lv;Zemin Xu;Haijiang Huo
通讯作者：
Dong Chen;Hongwei Guo;Jifang Xu;Y. Lv;Zemin Xu;Haijiang Huo