黄铁矿烧渣制备聚合硫酸铁实验

Experiment on Preparation of Polymeric Ferric Sulphate from Pyrite Cinder

用黄铁矿烧渣为原料．按反浮选和选择性浸出原理去除有害杂质，加入硫酸制取硫酸铁和硫酸亚铁，再经氧化、水解、聚合、获得质量合格的净水剂──液体聚合硫酸铁。

The water decontaminant-liquid polymeric ferric sulphate was obtained from pyrite cinder by backfloatation and selective leaching to remove the pernicious impurities, adding H_2SO_4 to produce ferric sulphate and ferrous sulphate, and following oxidation,hydrolysis and polyrnerization.