Yield Improvement of Tri Methyl Phosphate

The present invention relates to yield improvement of manufacturing process of trimethyl phosphite production process N-dimethylaniline continuous method, taking technical field belongs trimethyl phosphite system. The present invention is by synthesis, washing with water, layers were separated, dried and distilled, the step of recycling waste water, waste water treatment costs low, to ensure that the phosphorous acid product quality and production trimethyl, after which water was concentrated chloride crystals are widely used ammonium fertilizer. The present invention is the water wash the product from the solvent by a centrifugal separator, and by a second caustic wash effectively remove the ammonium chloride salt, a good solution to the problem of clogging of the amine hydrochloride salt of the distillation apparatus & developed process is completely water isolate system. This process in achieved around 97% yield of TMP.