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

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

CN
  • CN 1,066,132 C
  • Filed: 03/18/1997
  • Issued: 05/23/2001
  • Est. Priority Date: 03/18/1997
  • Status: Active Grant
First Claim
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1. usefulness peroxophosphoric acid acidifying sodium formate is produced the various phosphatic methods of formic acid coproduction, and its feature comprises:

  • (1) uses the peroxophosphoric acid acidifying sodium formate;

    (2) acidization is under agitation, successively sodium formiate is invested among the peroxophosphoric acid, finishes to the formic acid boiling temperature at normal temperature;

    (3) material after the acidifying distills out formic acid in still kettle, by being condensed into product;

    (4) by product that steams behind the formic acid is mixed with solution, puts into Flavouring jar after being settled out impurity, again through adjusting the pH value, and produces various phosphoric acid salt according to a conventional method.

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