The PS water reducing agent, which is very effective for concrete, has been made from waste poly styrene(WPS) by sulfuric acid of fuming sulfuric acid sulfonation process.
以废聚苯乙烯(WPS)泡沫为原料,采用浓硫酸和发烟硫酸两种磺化方法制备性能良好的砼减水剂。
A fuming sulfuric acid tank commissioned in 1997 in Baling Petrochemical Company have experienced a number leakages at the top of the tank, welds and wall shell.