METHOD AND FOR TREATING MATERIAL MIXTURE POSSESSING AT LEAST TWO PHASES HAVING DIFFERENT BOILING TEMPERATURES APPARATUS THEREFOR

摘要

Two phase mixtures of materials with different boiling points are separated and at least 1 component is recovered in a process that treats the mixture at a pressure < 50 mbar and a temperature at which only the phase with the lower boiling temperature is vaporised. The vapour is condensed (K1) and the condensate collected in a receiver (B1) that can be shut off. As the temperature gradient varies as a result of the release of this phase, the receiver (B1) is shut off from the 1st condenser (K1). The remaining mixture is processed at an increased temperature and at least 1 of the phases with the higher boiling point is expelled and the vapour condensed. Also claimed is an apparatus for carrying out this process.