Environment-friendly clean production method of D,L-methionine

Environment-friendly clean production method of D,L-methionine

  • CN 104,130,169 A
  • Filed: 07/08/2014
  • Published: 11/05/2014
  • Est. Priority Date: 07/08/2014
  • Status: Active Application
First Claim
Patent Images

1. a D, the environment friendly clean producing method of L-Methionine, is characterized in that:

  • comprise the following steps;

    1) with D, L-Methionine salt brine solution is raw material, enters bipolar membrane electrodialysis system and carries out bipolar membrane electrodialysis processing, and salt chamber is controlled pH=5.5 ~ 6.0 and obtained D, L-Methionine solution, and alkali chamber obtains alkaline solution;

    2) D obtaining from step

         1), isolates D in L-Methionine solution, L-Methionine.

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