Method for reducing the potassium sulphate content of residuary liquors originating from the distillation of alcoholic wines from fermentation and product obtained

摘要

The invention relates to a method for treating residuary liquors from distilleries with a view to reducing the potassium sulphate content thereof. According to this method, after concentrating the diluted residuary liquors, the potassium sulphate is crystallised by the addition, at 2, of ethyl alcohol (ethanol) to the concentrated residuary liquors, the crystallised potassium sulphate is separated off at 4, and, at 7, the alcohol is removed from the residual syrup. The product obtained may serve particularly for animal feeding.