磁選法の研究 (第3報)
強磁性鉱物を目的とする磁選における片匁鉱粒の磁力, 並びに磁選法の感度
1956 年 72 巻 820 号 p. 571-576
詳細
1956 年 72 巻 820 号 p. 571-576
In this report as the continuation of report I and II, the author reported the magnetic forces of locked particle - and the theoretical sensitivity of magnetic separation.
In the ordinary magnetic separation, the ores are generally locked particles including ferromagnetic minerals. So these particles show ferromagnetic characteristics, and their properties varie with the content of them. Technically the, most important problem of the magnetic separation of these locked particle lies, from the author's view, in the establishment of the clear relation of magnetic force and the content of ferromagnetic minerals of locked particle.
To ascertain the above problem, the author experimentally determined the relation by using a magnetic balance and over 8 hundreds of locked particles produced in the Kamaishi mine. More over, this experimental result was theoretically studied, and the sensitivity of magnetic separation was obtained. The result was illustrated by Fig. 6. Thus by the above result the practical problems of magnetic separation were discussed.
In the above considerations, the author theoretically solved the relation between apparent susceptibility of locked particle and of constituents. The relation was illustrated by the expression (9). By using the above relation the author numerically calculated the apparent susceptibility concerned with the locked particle of magnetite and quartz. The result obtained was illustrated by Fig. 10.
These results may have a wide use in practical applications of magnetic separation.
