MAGNETIC ENHANCEMENT OF PYRITE BY CAUSTIC MICROWAVE TREATMENT

被引：13

作者：

ROWSON, NA

RICE, NM

机构：

[1] Boxmag Rapid Ltd., Birmingham, B6 4AJ, Chester St., Aston

[2] Dept. of Mining and Mineral Engng., University of Leeds, Leeds

来源：

MINERALS ENGINEERING | 1990年 / 3卷 / 3-4期

关键词：

coal; desulphurisation; magnetic separation; microwaves; Pyrite;

D O I：

10.1016/0892-6875(90)90130-4

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A study is reported of the reasons for the magnetic desulphurisation of coal after microwave irradiation in a caustic slurry. X-ray diffraction, EDAX, ESCA and magnetic susceptibility studies were carried out on both mineral pyrite and the magnetic concentrate from coal after irradiation by microwaves of 2.45 GHz at 500 w for up to 40 seconds in the presence of 300 g/litre NaOH. The possible nature of the magnetic phase is discussed in terms of the Eh-pH diagram but no positive identification proved possible. © 1990.

引用

页码：355 / 361

页数：7

共 6 条

[1]

Rice, Rowson, Desulphurisation of Coal Using Low Power Microwave Energy, Mineral Engng., (1989)

[2]

Zavitsanos, Coal Desulphurisation Using Microwave Energy, EPA/600/778/089, (1978)

[3]

Hall, Finch, Rowlands, Enhancement of Magnetic Susceptibility of Pyrite by Oxidative Leaching, Trans. Inst. Min. Metal, 94, pp. C35-39, (1985)

[4]

Burkin, Edwards, 6th Ann. Mineral Proc. Cong., (1963)

[5]

Burkin, The Chemistry of Hydrometallurgical Processes, (1966)

[6]

Rowson, Ph.D. Thesis, (1986)

← 1 →