Characterization of dross and its recovery by sulphuric acid leaching

被引：7

作者：

Rahmani, S. A. ^{[1
]}

Meidianto, A. ^{[1
]}

Ama, M., I ^{[2
]}

Wismogroho, A. S. ^{[1
]}

Widayatno, W. B. ^{[1
]}

机构：

[1] Indonesian Inst Sci, Res Ctr Phys, Tangerang Selatan, Indonesia

[2] Indonesian Inst Sci, Res Ctr Met & Mat, Tangerang Selatan, Indonesia

来源：

3RD INTERNATIONAL SYMPOSIUM ON FRONTIER OF APPLIED PHYSICS (ISFAP 2017) | 2018年 / 985卷

关键词：

HYDROMETALLURGICAL RECOVERY; ZINC; ALKALINE; METALS;

D O I：

10.1088/1742-6596/985/1/012033

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This paper reports the characterization of dross from galvanizing process and its recovery using acidic leaching method. The diffraction profile of dross showed identical peaks with that of ZnO. The X-ray Fluorescence (XRF) analysis identified the content of following metals: Zn, Fe, Mn, Ga, Co, and W. The thermal behaviour examination revealed the existence of some volatiles within the initial sample. The acidic leaching at various concentrations of sulphuric acid was conducted to determine the optimum concentration for zinc recovery and the highest yield of zinc sulphate. It is concluded that the optimum concentration of H2SO4 for this kind of dross is 4 M with 71.9% yield of ZnSO4. The result of leaching process was confirmed by infrared spectrum, where various absorptions corresponding to SO42- and Zn-O bands were observed.

引用

页数：6

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