The invention discloses a continuous industrial production method of high-purity
bisphenol A bis (
diphenyl phosphate). The method comprises the following steps: dividing
bisphenol A into two parts, mixing part of
bisphenol A with
phosphorus oxychloride and a Lewis acid catalyst, adding the mixture into a continuous multistage crosslinking reactor, reacting, and evaporating to remove excessive
phosphorus oxychloride after the reaction is ended, adding an organic alkali acid-binding agent into the
distillation residual liquid to react with the residual
bisphenol A for 1.5-3 hours at the temperature of 115-120 DEG C to obtain an
intermediate product reaction liquid, mixing the
intermediate product reaction liquid with
phenol, feeding the mixture into a multi-stage esterification reactor for
esterification reaction, continuously supplying consumed
phenol in the esterification process, and obtaining a crude product after the reaction is finished; and sequentially carrying out continuous
acid washing, continuous alkali washing, continuous
water washing, continuous
solvent recovery and
filtration to obtain the
bisphenol A-bis (
diphenyl phosphate) finished product. According to the method,the production cost is reduced, the product yield is increased to 97% or above, the product color number is increased to 50 or below, TPP is controlled to be 0.1%, isopropenyl phenyl
diphenyl phosphate is smaller than 50 ppm, and fluctuation of quality indexes of all products is small.