静電選鉱における磁硫鉄鉱の2, 3の性質
1960 年 76 巻 859 号 p. 23-26
詳細
1960 年 76 巻 859 号 p. 23-26
A study has been made to ascertain the relation between magnetic property and electric conductivity (reciprocal of electric resistivity) of pyrrhotite when subjected to electrostatic separation.
As previously known, there exists co-relation between magnetic property and floatability of pyrrhotite, but there is no report concerning to the relation between electric conductivity and magnetic property.
So the authors measured electric conductivity by powder method, and magnetic property by magnetic balance, on the samples by electrostatic separation.
The results obtained are as follows:
1) Magnetism of pyrrhotite increases in inverse proportion with its electric conductivity.
2) Electric conductivity of pyrrhotite has been found to be from 102 to 10 mho/cm by powder method.
3) The maximum electric resistivity is found to be at the point where Fe content in pyrrhotite is about 60%(by chemical analysis). At this point, its magnetism is considered to be maximum and flotability minimum.
4) Indicates electrostatic separation of pyrrhotite is more effective when combined with magnetic separation.
