Abstract: The influence of reaction and recycling conditions for coalescence removal of residual free acid from bisphenol A resultant with fiber membrane were investigated. The experiment results showed that at 70 ℃，2% ethanol added，space velocity 20～30 h－1 and 1.0 cm3 fiber membrane bed，the bisphenol A resultant acidity decreased from 0.014mmol/L to 0.001 mmol/L，which met the acidity requirement for bisphenol A resultant . When the disposal amount of bisphenol A resultant reached 60 times of the fiber membrane layer volume，the layer must be recycled with acetone. By experiments，the best recycling temperature was 50 ℃ and acetone dosage was 6 mL.

Key words: bisphenol A resultant, residual free acid, fiber membrane bed, coalescence removal of acid, regeneration

摘要： 研究了纤维膜聚结技术用于脱除双酚A反应液中残留游离酸的实验条件和纤维膜床层的再生条件。结果表明，在聚结温度70 ℃、95%乙醇用量2%、空速20～30 h－1、纤维膜床层体积1.0 cm3的条件下，可使双酚A反应液的酸度从0.014 mmol/L脱除至≤0.001mmol/L，满足双酚A反应液对酸度的要求；当双酚A反应液的处理量达到纤维膜床层体积的60倍时，床层必须采用丙酮进行再生；在丙酮用量6 mL和再生温度50 ℃的条件下，纤维膜床层可以得到完全再生。

关键词: 双酚A反应液, 残留游离酸, 纤维膜床层, 聚结脱酸, 再生