SEPARATION OF MIXTURE AND ADJUSTMENT OF PROPERTY THEREOF INCLUDING VARIOUS OPERATIONS OF VACUUM SOLIDIFICATION, REVERSE-SUBLIMATION OF LOW PRESSURE VAPOR AND GASIFICATION OF REVERSE- SUBLIMATION SUBSTANCE

摘要

A process for transforming a first vapor containing a major component and which has a pressure lower than the triple point pressure of the major component into a second vapor which has a pressure higher than the said triple poin pressure comprising the steps of cooling the low-pressure first vapor to convert it into a condensed mass which contains a mass of solid of the major component, melting the solid in the condensed mass to form a mass of melt liquid and vaporizing the melt liquid at a pressure higher than the said triple point pressure.