Process and apparatus for distilling, distilling off and rectifying liquids under vacuum, in particular solvents, especially in laboratory and pilot plant operations

摘要

In order, in distilling, distilling off and rectifying liquids under vacuum, to establish an optimal course of evaporation which then proceeds automatically at high yield, for optimization, the vacuum is varied by means of a vacuum regulator (30), the vapour temperature is measured in the condenser (8) by means of a sensor (18), the measured temperature value is compared with a set point value from a temperature set point device (12) in a temperature value comparator (21), which gives a command to close to a magnetically controlled valve (17), arranged in a suction line (15) leading to the condenser (8), when the set point temperature value is exceeded and gives a command to open when the set point value is undershot. IMAGE