METHOD FOR THE EXTRACTION OF SUBSTANCES OF LOW MOLECULAR WEIGHT PRESENT IN NATURAL AND SYNTHETIC PRODUCTS

摘要

Method for the extraction of substances having a low molecular weight present in natural products by dialysis wherein the solvent of one of the sides of the semipermeable membrane (diffusate) has been substituted by a solvent immiscible with the solution from which the extraction is to be effected. The method allows to remove a high percentage of prejudicial or harmful substances from the solution or to recover substances of industrial interest from the organic phase which has been subjected to distillation and/or crystallization.