Buchi Vacuum Pump V-710 Manual de usuario descargar pdf (Pagina 41)

6 Operation

41 V-700/710 Operation Manual, Version E

6.3 Optimizing the distillation conditions

Depending on the solvent being distilled the distillation might have to be re-optimized. In the optimized

case, the condenser should be steamed up to between 2/3 to 3/4, see ﬁgure below.

If this is not the case, there are two possibilities to optimize the distillation:

• When the heating bath has reached 60 °C slowly reduce the pressure. Thus, the boiling point of

the solvent is reduced and Δ T

increases resulting in an increase of distillation capacity.

• When the heating bath has reached 60 °C increase the bath temperature. Thus Δ T

increases

resulting in an increase of distillation capacity as well.

NOTE

When the bath temperature is increased, not all of the additional energy is used for distillation but a

major part is discharged into the environment due to the increasing difference between heating bath

and the ambient temperature.

3/4

Fig. 6.2: Optional condensation area of a condenser

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 57 58

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Buchi Vacuum Pump V-710 Manual de usuario Pagina 41