In line with the corrosion of main equipment in medium and small single superphosphate plants, an inquiry is made into the use of polypropylene plastics in mixers, agitator propellers and the fluorine recovery system for prevention of corrosion.

• 结合中、小过磷酸钙生产企业在生产中存在的主要设备腐性问题，探讨了聚丙烯塑料在混合器防腐、搅拌桨防腐处理及在氟回收系统中的应用情况。