Process for producing formate and joint producing various sodium phosphates by acidifying sodium formate with perphosphoric acid

The method used for producing formic acid sodium formate acidified with phosphoric acid cogeneration various phosphates, and a method of manufacturing an aliphatic carboxylic acid and an alkali metal salt of an object is to provide an industrial production method used for producing formic acid sodium formate acidified with phosphoric acid. The method used was acidified sodium phosphate, acidification under stirring to continue to run over sodium phosphoric acid, formic acid at a temperature of from room temperature to the boiling point of completion; material after acidification in the distillation still was distilled formic acid and condensed product; sub the product was formulated as a solution to adjust the pH, the production of phosphate conventional manner. Law of low production cost, simple acidification process can be industrial production, high product concentration of formic acid.