溶剂萃取法处理含六甲基磷酰三胺的废水  

Treatment of hexamethylphosphoramide-containing Wastewater by solvent extraction

作　　者：于佩潜[1] 谢美菊[1] 余自力[1] 

机构地区：[1]四川大学材料科学技术研究所,四川成都610064

出　　处：《化学研究与应用》2002年第3期342-343,共2页Chemical Research and Application

基　　金：国家八六三计划新材料领域资助项目 ( 863 715 0 0 7 0 0 2 0 )

摘　　要：The hexamethylphosphoramide(HMPA)-containing wastewater was treated by solvent extraction. The ef-fects of a series of extractants, the amount of extractant and the concentration of the HMPA in aqueous solution were investigated. The experimental results showed that the CHCl 3 was a good extractant. The distribution ratios increase with the increase of CHCl 3 concentration, whereas the distrbution ratios decrease as the concentration of HMPA aqueous solution increases. After six steps of extraction, the concentration of HMPA in the wastewater was lower than the concentration based on phosphorus according to the discharge standard of water pollutants for phosphate fertilizer industry.The hexamethylphosphoramide(HMPA)-containing wastewater was treated by solvent extraction. The ef-fects of a series of extractants, the amount of extractant and the concentration of the HMPA in aqueous solution were investigated. The experimental results showed that the CHCl 3 was a good extractant. The distribution ratios increase with the increase of CHCl 3 concentration, whereas the distrbution ratios decrease as the concentration of HMPA aqueous solution increases. After six steps of extraction, the concentration of HMPA in the wastewater was lower than the concentration based on phosphorus according to the discharge standard of water pollutants for phosphate fertilizer industry.

关 键 词：溶剂萃取 六甲基磷酰三胺 废水处理 分配比 聚苯硫醚 溶剂 

分 类 号：X783.1[环境科学与工程—环境工程] X703.1