The sulfonic acid type cation exchange resin is used as a catalyst for the condensation reaction. The catalyst used in the method has the advantages of high catalytic efficiency, and can also solve the disadvantages of serious equipment corrosion, three pollutions, and complex production processes. The process greatly changes the shortcomings of the traditional process, the catalyst and the reactants are easily separated, the post-treatment is simple, the catalyst can be reused, and the product quality is high. It can be predicted that the technology of producing bisphenol fluorene by ion exchange resin method will become the mainstream and development direction of bisphenol fluorene production, but thermal stability and swelling are still the main problems of resin catalysts.
