【摘要】 采用协同萃取法处理均苯四甲酸工业废水 ,一次萃取率高达 99.5 %以上 .反萃后萃取剂经循环使用 ,萃取效果没有下降 .同时讨论了影响萃取效果的一些因素 .更多还原

【Abstract】 The wastewater from the production of pyromellitic acid is treated by cooperative extraction with an efficiency over 99.5%.The efficiency remains the same even when the regenerated extrating reagent is used after recycling for more than 20 times.The effect of some factors on the extracting efficiency is also disscussed in the paper.更多还原