The feasibility of using ultrasound to enhance the performance of de-sulphurization and de-ashing during slime flotation......

为实现煤炭合理、高效、洁净的利用,需降低原料煤中所包含的灰分.经过溶剂热萃取法处理得到的超低灰煤具有无灰、无水、热活性高、......