Method for separating and purifying 1,4-diaminobutane from fermented solution

摘要

The present invention relates to a method for separating and purifying 1,4-diaminobutane at high purity and high yield from a fermented solution comprising 1,4-diaminobutane, through cell mass removement, desalination, concentration, impurities removal, and recovery. Also, provided is a method for separating and purifying 1,4-diaminobutane at high purity and high yield from a fermented solution 1,4-diaminobutane, through cell mass removement, desalination, low-temperature concentration, crystallization, filtration, high-temperature concentration and distillation.

主权项

1. A method for separating and purifying 1,4-diaminobutane from a fermented solution comprising 1,4-diaminobutane, comprising:
removing cell mass from the fermented solution (step 1); adding an alkaline material to the cell mass-removed fermented solution of step 1 to remove produced salts (step 2); concentrating the desalted, fermented solution of step 2 (step 3); removing impurities from the concentrated, fermented solution of step 3 (step 4); and recovering 1,4-diaminobutane from the impurity-removed, fermented solution (step 5).