Process for production and separation of mannitol and sorbitol from mixture which was obtained by hydrogenation of precursor

Process for production and separation of mannitol and sorbitol from mixture which was obtained by hydrogenation of precursor

  • CN 104,812,728 A
  • Filed: 11/20/2013
  • Published: 07/29/2015
  • Est. Priority Date: 11/22/2012
  • Status: Active Application
First Claim
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1. the matrix (1) containing fructose and/or seminose is separated into the method for multiple fraction (X, Y, Z), described matrix (1), containing N.F,USP MANNITOL precursor, said method comprising the steps of:

  • A) by described matrix (1) hydrogenation be matrix (2) through hydrogenation;

    B) this matrix through hydrogenation (2) is carried out chromatographic separation by successive processes, obtains;

    -be rich in the fraction (z1) of N.F,USP MANNITOL,-the first sorbyl alcohol fraction (X), it has high purity and containing being less than 0.2% total reducing sugars,-the second sorbyl alcohol fraction (Y);

    C fraction (z1) crystallization of being rich in N.F,USP MANNITOL is divide (Z) as the third stage of crystallized mannitol by (), and form mother liquor (3);

    D this mother liquor (3) is added into this in the matrix of hydrogenation by () again.

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