method for separating and purifying carboxylic acids from fermentation broths containing salts of ammonium carboxylic acid; and device for performing the method

摘要

abstract method for separating and purifying carboxylic acids from fermentation broths containing salts of ammonium carboxylic acid; The method and device for separating and purifying carboxylic acids from fermentation broths containing ammonium carboxylic acid salts, the method comprising the following steps, a) removing the biomass and any solids present from the broth b) producing a solution containing the desired carboxylic acid and an additional solution containing ammonium salts by performing simulated moving bed (smb) chromatography, c) ultrapurifying the solution containing the desired carboxylic acid from step b), d) concentrating the purified carboxylic acid solution from step c), e) crystallizing the concentrated carboxylic acid solution from step d), f) concentrating the additional solution containing ammonium salts from step b), characterized in that a combination of reverse osmosis and evaporative concentration at the concentration of steps d) and f), and the concentration vapor The evaporative concentration of step f) is fed to the evaporative concentration of step d). 1/1