method and device for purifying mixtures of high fusion organic compound or crude products by fractional layer crystallization means

摘要

method and device for purifying mixtures of high fusion organic compound or crude products by fractional layer crystallization means. The present invention relates to a method and a device for preferably purifying and / or separating mixtures of high fusion organic compound or crude products containing in particular degradable and / or high fusion sterols by layer crystallization on the first surfaces. Heat exchangers, the crude product is received in a solvent or solvent mixture, and then brought into contact with heat exchanger surfaces, the desired product crystallizes on the slow-cooling heat exchanger surfaces. evaporation of the solvent during the sweat and crystallization process is condensed and returned to the mixture.