Why Evaporation under Vacuum

Evaporation plants should be operated at hi pressure, if possible, as in this way the vapours can be used to the bestpossible extent. But there are many other reasons why evaporation plants should be operated under vacuum. 

Based on different criteria we will show the cases in which vacuum operation is 

Evaporation is the separation technology to separate a solvent - in most of the cases water - from a solution, emulsion or suspension by means of boiling, while the dissolved or suspended substance has no or only a slight steam pressure. 

It is the objective of this separation technology to recover the solvent as pure as possible, for example, in the production of drinking water from sea water. 

In other cases, the concentration of the dissolved, emulsified or suspended substance is given priority. For example, for the production of condensed milk, it would be desirable to achieve a higher dry substance contents in the product. 

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