HIGH-GRADIENT MAGNETIC SEPARATION OF IRON-OXIDES AND OTHER MAGNETIC MINERALS FROM SOIL CLAYS

被引：66

作者：

SCHULZE, DG ^{[1
]}

DIXON, JB ^{[1
]}

机构：

[1] TEXAS A&M UNIV,DEPT SOIL & CROP SCI,COLLEGE STN,TX 77843

来源：

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1979年 / 43卷 / 04期

关键词：

D O I：

10.2136/sssaj1979.03615995004300040036x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

A filter of ferromagnetic stainless steel wool, placed in a strong magnetic field, provides the magnetic field gradients necessary to trap weakly magnetic clay size particles from a flowing suspension. Larger particles are captured more efficiently because of their greater overall magnetic attraction. Goethite, hermatite, lepidocrocite, and anatase are concentrated in the magnetic fraction, while quartz is concentrated in the tailings. Chlorite is effectively concentrated in the magnetic fraction. Although mica, vermiculite, and smectite are often found in both the tailings and the magnetic fraction, vermiculite and mica appear to be more concentrated in the magnetic fraction. The concentration effect on kaolinite appears to be dependent on the particle size and rate of flow through the magnetic filter.-from Authors English

引用

页码：793 / 799

页数：7

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