| 摘要 |
Purification of 1,3-propane- diol present in fermentation medium of its microorganism-producer, is new. Purification of 1,3-propane- diol present in fermentation medium of its microorganism-producer. In addition to 1,3-propane -dione, the fermentation medium contains also fermentation by-products containing at least glycerol. The process comprises: (a) separation of microorganism-producer from other components of fermentation medium, to produce clear aqueous solution; (b) passing obtained solution through cation-exchange resin (with cation preferably selected from La, Pb, Fe, Zn and Al), to give at least one fraction containing purified 1,3-propane -diol and at least one fraction containing fermentation by-products; and (c) recovery of purified 1,3-propane -diol.
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