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以四乙烯五胺、环氧氯丙烷为主要原料，合成了一种阳离子聚电解质ＰＡＫ－１，并在实验室真空过滤脱水装置上，对阳离子聚电解质ＰＡＫ－１和其它聚电解质应用于细粒煤的过滤脱水过程进行了试验研究。研究的主要变量有：聚电解质的种类添加量、添加方式以及细粒煤浆的ｐＨ值等。
Using tetraethylene pentamine and epichlorohydrin as main raw materials, a cationic polyelectrolyte PAK-1 was synthesized and applied on the laboratory vacuum filtration dewatering device. The cationic polyelectrolyte PAK-1 and other polyelectrolytes were applied to the fine particles Coal filtration and dehydration process of the experimental study. The main variables studied are: the type of polyelectrolyte added, the way of adding and the pH of fine coal slurry.