The results showed that the main compositions of the recovered extracting agent had no significant difference from the crude phenol and the extracting agent could be reused.

• 采用盐析萃取工艺对焦化精苯废酸进行治理回收利用,以粗酚作萃取剂,向萃取相中掺入3%25-5%25的阻垢剂,成功地解决了萃取剂蒸馏再生时起泡、结渣的问题。