What does self-pulverization mean in the process of extracting alumina from coal gangue?
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In the process of extracting alumina from coal gangue, there is a method involving the sintering of limestone followed by self-grinding. What exactly does \"self-grinding\" refer to in this context? Thank you.
The volumetric expansion resulting from the C2S phase transformation leads to powder formation, eliminating the need for a grinding process; this saves electrical energy and results in powder that is finer than that produced by grinding.