Ferrite process of electroplating sludge and enrichment of copper by hydrothermal reaction
Ferrite process of electroplating sludge and enrichment of copper by hydrothermal reaction
复制标题
电镀污泥铁氧体工艺及水热反应富集铜
DOI：
10.1016/j.seppur.2008.01.003
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发表时间：
2008-09
影响因子：
8.6
通讯作者：
Liu, Qiang
中科院分区：
文献类型：
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作者：
Xu, Yun-Feng;Liu, Zhong-Zhe;Chen, Dan;Zhu, Hua-Jun;Qian, Guang-Ren;Yu, Yi-Zhong;Liu, Qiang
本文研究了电镀污泥的铁氧体化处理及水热反应富集铜。通过添加铁源（FeCl 3·6 H2O）和沉淀剂，将含Zn、Ni、Cu、Cr的电镀污泥水热处理，可得到高附加值的Ni-Zn-Cr铁氧体。实验结果表明：FeCl 3·6 H2O投加量为1.57g/g干污泥，用氨水调节污泥pH值为8.5，反应时间为4 h，反应温度为200°C。在此条件下，以氨水为沉淀剂，可制得纯度较高的Ni-Zn-Cr铁氧体，铜的浸出率可达76 ~ 84wt%。添加铁源和沉淀剂制备的Ni-Zn-Cr铁氧体的重金属浸出毒性远低于毒性特征浸出程序（TCLP）的规定限值，表明电镀污泥水热合成的Ni-Zn-Cr铁氧体具有较好的化学稳定性。因此，水热铁氧体法是一种可行的电镀污泥资源化和自净化的方法。
In this paper, ferrite process of electroplating sludge and enrichment of copper by hydrothermal reaction was investigated. By the hydrothermal treatment, Zn, Ni, Cu, Cr-bearing electroplating sludge can be transformed into high value-added Ni–Zn–Cr ferrite by adding iron source (FeCl3·6H2O) and precipitator. The most optimum reaction conditions were explored: 1.57g/g dry sludge as the dosage of FeCl3·6H2O, pH 8.5 of the slurry adjusted by ammonia, 4h as the reaction time, and 200°C as the reaction temperature. Under these conditions, the purer Ni–Zn–Cr ferrite could be prepared, and Cu was extracted to the range from 76wt% to nearly 84wt%, when ammonia was selected as the precipitator. Leaching toxicity of heavy metals from Ni–Zn–Cr ferrite prepared with additional iron source and precipitator, was much lower than the regulated limit of Toxicity Characteristic Leaching Procedure (TCLP), indicating that Ni–Zn–Cr ferrite synthesized hydrothermally from electroplating sludge had a better chemical stability. Therefore, the ferrite process by hydrothermal reaction is a feasible method with respect to the reuse and self-purification of electroplating sludge.
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影响因子：
2.7
作者：
Y. Tamaura;P. Tu;S. Rojarayanont;H. Abe
通讯作者：
Y. Tamaura;P. Tu;S. Rojarayanont;H. Abe
影响因子：
2.8
作者：
B. Demirel;O. Yenigün;M. Bekbolet
通讯作者：
B. Demirel;O. Yenigün;M. Bekbolet
影响因子：
4.7
作者：
O. Perales-Pérez;Y. Umetsu
通讯作者：
O. Perales-Pérez;Y. Umetsu
DOI：
10.1007/978-0-387-29413-1
发表时间：
2016
期刊：
--
影响因子：
--
作者：
A. Holzman
通讯作者：
A. Holzman
影响因子：
2.7
作者：
Y. Tamaura;T. Katsura;S. Rojarayanont;T. Yoshida;H. Abe
通讯作者：
Y. Tamaura;T. Katsura;S. Rojarayanont;T. Yoshida;H. Abe