Short Path Distillation Unit Manufacturers in Mumbai, India

Operating principle of short path distillation unit (SPDU) is similar to thin film except internal condenser. Here internal condenser is installed inside rotor cage assembly.

The feed enters the unit at top and get distributed into a thin film on the inside surface of shell. Heating medium passing through the jacket evaporates volatile component in feed. The vapor generated flow across the rotor and condense on internal condenser. This short path of vapor eliminate pressure drop.  hence evaporation can be done at high vacuum as  0.001 mbar. The distilled product and balance bottoms are taken out through separate outlets.

Features of Short Path Distillation Unit:

  • Operating pressure as low as 0.001 mbar. hence product can be distilled at lower temperature to avoid degradation.
  • With high vacuum and high heating temperature, very high boiling components can be distilled easily.
  • Residence time of few seconds.
  • Single pass evaporation.
  • Good turn down capability
  • Low product hold up.
  • Use of metal blades at high temperature gives more flexibility than conventional roller design.

Applications of Short Path Distillation Unit:

  • High vacuum distillation of bulk drugs, nature or synthetic vitamins, esters, epoxy resins, fatty acids, glycerides, tocopherols.
  • Re-refining of lubrication oil.
  • Purification of natural and synthetic waxes.