The Probert Encyclopaedia of Science & Technology

VACUUM DISTILLATION

Vacuum distillation is a distillation process used for materials that have very high boiling-points or are likely to decompose below their boiling-point. Air is evacuated from the apparatus with a vacuum pump, and the vacuum so formed causes the materials being heated to boil at a temperature lower than they would under normal atmospheric pressure. This enables distillation to take place at lower temperatures. One example of its use is in petroleum refining.
Research Vacuum Distillation