KAOLIN CLAY PURIFICATION BY DRY HIGH GRADIENT MAGNETIC SEPARATION
来源期刊：中国有色金属学报(英文版)1993年第1期
论文作者：Zhu Dehua Sun Zhongyuan Chen Jin Chen Zhengxue
文章页码：22 - 26
Key words：magnetic separation; kaolin; purification; dry high gradient magnetic separator
Abstract: A new method-dry High Gradient Magnetic Separation (HGMS)-to remove iron from ultrafine kaolin powder is described. A new kind of disperser, which breaks down the particle clusters in the powder by high speed gas flow from an air compressor, is used to completely disperse the powders. The dispersed particles are passed through vibrating HGMS by a vacuum pump to remove the iron. The magnetic and nonmagnetic fractions are separately collected by cloth collectors. Dry HGMS laboratory experiments are carried out. A product containing 0.90％ Fe2O3 was obtained, and the recovery was 70％.
