Procedure for separation and purification of 1,4-diaminobutane from a fermented solution

摘要

A process for separating and purifying 1,4-diaminobutane from a fermented solution comprising 1,4-diaminobutane, comprising: removing the cell mass from the fermented solution (step 1); adding an alkaline material to the fermented solution to which the cell mass has been removed from step 1 to remove the salts produced (step 2); concentrate the fermented solution, desalted from stage 2 (stage 3); remove impurities by filtration of the fermented solution, concentrated from step 3 (step 4); and recover 1,4-diaminobutane from the fermented solution, to which the impurities have been removed (step 5).