Magnetic separation of kaolin clay with amorphous ferromagnetic fiber

Author

Yang, Ying-Shan ; Xu, L.Y. ; Wang, X.L. ; Li, Y.G. ; Mao, Xiaoyang ; Wu, Y.L. ; Liu, C.L.

Author_Institution

Central Iron and Steel Research Institute, Beijing, China

Volume

16

Issue

5

fYear

1980

fDate

9/1/1980 12:00:00 AM

Firstpage

934

Lastpage

936

Abstract

Approximately 2-3% Fe2O3as limo nite is contained in kaolin clay (Al2O3.2SiO2. 2H2O) in Suzhou, China. In this paper three kinds of amorphous ferromagnetic fibers were chosen as media in high extraction magnetic filtration (HEMF) for kaolin clay: 1. Fe63Ni15Si7B15; 2. Fe75Cr5P13C7; 3. Fe73Cr7P13C7;. The amorphous ferromagnetic fiber should possess the properties of noncorrosion and produce a high magnetic field gradient in an external field. In this article, corrosion-polarization curves, HEMF efficiencies of three sorts of amorphous fiber and the effect of width of fibers on HEMF in various external fields are given. Evidently the efficiency of extraction magnetic filtration of narrow fibers is better than those of the wider one. The amorphous ferromagnetic fibers of Fe75Cr5P13C7(width about 0.2 mm) have the best separation effect. This medium can reduce the Fe²O3content from 2.01 wt% (crude ore slurry ) to 0.70 wt%.

Keywords

Amorphous magnetic materials/devices; Magnetic separation; Amorphous magnetic materials; Amorphous materials; Chromium; Filtration; Magnetic fields; Magnetic properties; Magnetic separation; Optical fiber polarization; Saturation magnetization; Steel;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1980.1060746

Filename

1060746