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The working principle of short path evaporators

The product is distributed and tubulised by a wiping system on a cylindrical heating jacket. The evaporated fraction is condensed on a condenser installed in the centre of the evaporator.
This arrangement minimizes the path from evaporation to condensing surface and achieves the lowest possible pressure drop.
The high vacuum and the short residence time avoids thermal stress and decomposition of the processed products.

Design features

  • Heat exchange surface 0.04 m2 – 80 m2
  • Available scales: Laboratory, pilot and industrial
  • Material of construction: glass, stainless steel, special alloys, glass lined
  • Wiping systems are able to limit fouling
  • Operating temperature: max 400°C
  • ATEX and GMP design possible

 

Technical details of VTA short path evaporators

Capacity 0.1 kg/h up to several t/h
Operating pressure Min. 0.001 mbar
Evaporation ratio Max. 95%
Residence time Short, to minimise thermal degradation
Viscosity Max. 20,000 mPas
Melting points Max. 200°C
Distillation process Fully continuous

Our specialists are here to advise on the optimal solution for your process. Our engineers will design a system for you according your specifications.

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Application areas for VTA short path evaporators

Fine vacuum distillation of thermal sensitive products such as:

  • PE wax
  • Monoglyceride concentration
  • Used oil recovery
  • EPA and DHA concentration
  • Epoxy resins

 

 

  • Lanolin alcohols, lanolin
  • Isocyanates TDI, MDI, XDI, HDI
  • Devolatilization of silicon oil
  • 3 MCPD, GE, MOSH, MOAH removal from vegetable oils