Questions regarding high-vacuum distillation
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For thermosensitive materials that react using DMF as a solvent, it is necessary to remove DMF through film evaporation under high vacuum (around 200 Pa) and low temperature (50°C). 500 kg of material can be processed per hour (with 10% being the product itself). Ice-water slurry at -15°C is used as the cooling medium to remove 70% of the DMF, which amounts to about 300 kg. Gentlemen, what size of condenser and vacuum system is required for this process?
At 1.5 mmHg, it is not a high vacuum; it is a rough vacuum. Please provide the heat of vaporization data
You can refer to Dadoan’s vacuum design manual
All calculated based on DMF; the cooling power required for the condenser is approximately 95 kW； The zero-flow rate of the chilled water is approximately 20 m3/h. The size of the downstream vacuum system depends mainly on the amount of non-condensable gas present and the level of air leakage