The W/ O microemulsion of kerosene and water was made under the action of synthetic non-ionic emulsifier SLL and n-butyl alcohol. Acrylamide polymerization was carried out in the microemulsion and the polymerized substance acted as filter aids for slime dewatering. 用合成的非离子型乳化剂SLL与助乳化剂正丁醇配合,将煤油与水制成W/O型微乳液,用该微乳液进行丙烯酰胺聚合,聚合后的微乳液复合体作为煤泥脱水助滤剂使用。