All coal preparation in which fine coal is handled depends to some extent on the wettability of coal surface by water.The content of extermal water in fine mois
The overburden failure causes the changes of the constant electric field, and the resistivity is the main parameter in these changes. The experimental simulatio
The utilization of coal-derived pyrite by electrolysis was studied. It is obvious that the sulfur and Fe in pyrite can be electrolyzed into Fe^3+ and SO^2^-4, a