Conclusions were drawn that the application of polycoagulant had the following advantages: less consumption,lower cost and excellent effects on the quality of refining brine.

• 简介速溶型固体聚丙烯酸钠生产性试验情况，分析了试验结果，同时进行了经济效益分析，指出此凝聚剂具有用量少、成本低、盐水精制质量好的优点。