Chemical comminution and mining of coal

Details Chemical comminution and mining of coal Chemical comminution and mining of coal

E - Fixed Constructions

21

B

31/13

E21B 43/22 (2006.01) C09K 8/594 (2006.01)

Patent

CA 1042194

ABSTRACT OF THE DISCLOSURE Coal, whether in a sub-surface stratum or in large lumps as mined by standard means is reduced to fragments by treatment with compounds which weaken interlayer forces at natural inter- faces present in the coal. When coal below the earth's surface is treated with such compounds, the fragment can be suspended in inert gas moving at a sufficiently rapid rate and carried to the surface where the comminuted coal can be collected.

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