Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1637443 | Transactions of Nonferrous Metals Society of China | 2012 | 7 Pages |
Abstract
High gradient magnetic separation was conducted in order to separate insoluble zinc ferrite from zinc calcine before acid leaching of hydrometallurgical process. Chemical composition and structural characterization of zinc calcine were studied via inductively coupled plasma (ICP), X-ray diffraction (XRD), Mössbauer spectra, scanning electron microscopy (SEM) and laser particle analysis (LPA). The parameters of magnetic separation which affect the distribution of zinc ferrite and undesired elements, such as calcium, sulfur and lead in magnetic concentrate were investigated. The results of high gradient magnetic separation indicate that more than 85% of zinc ferrite is distributed into magnetic concentrate from the zinc calcine under the magnetic induction of 0.70 T. In addition, about 60% of calcium and 40% of sulfur distribute in non magnetic phases of tailings during magnetic separation process. Most of lead distributes uniformly along the zinc calcine in superfine particle size.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Mi LI, Bing PENG, Li-yuan CHAI, Ji-ming WANG, Ning PENG, Huan YAN,