| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing bisphenol A in high yield by limiting the amount of water in a recombination step, comprising a formation step for forming the bisphenol A by carrying out condensation reaction of acetone with phenol in the presence of a specific catalyst, a crystallization step for cooling the product, a degradation step for degrading a mother liquor and the recombination step. SOLUTION: This method for producing bishenol A in high yield comprises limiting of the amount of water to <=0.1wt.% in a recombination step after forming the bisphenol A by carrying out a condensation reaction of acetone with phenol in the presence of a strong acid ion exchange resin partially modified by a sulfur-containing amine compound (e.g. 2-mercaptoethylamine). |
