Vm. Vorotyntsev et Pn. Drozdov, METHOD COMBINING RECTIFICATION AND DIFFUSION THROUGH POLYMERIC MEMBRANES FOR EXHAUSTIVE PURIFICATION OF SUBSTANCES, Russian journal of applied chemistry, 70(10), 1997, pp. 1599-1602
A combined process of rectification and diffusion through polymeric me
mbranes in the same apparatus was studied, Expressions are obtained fo
r the separation capacity of apparatus in those cases when the impurit
y concentrates in vapor or liquid phase.