Process for the separation of hydrogen fluoride and difluoromethane.

摘要

A process for the sepn. of HF and F.32 by distn. and/or fractional condensn. in one or more stages is claimed. Process comprises at least one stage to give a flow of HF and F.32 content corresp. to those of the azeotropic mixt. which is effected at a pressure such that the partial pressure of the (HF+F32) mixt. (Pa expressed in bars abs.) and the HF content (xwt.%) meet the equation: Pa = 17-22.9(x+0.821)ln(x+0.608)+56.6Äln(x+0.608)Ü<2>