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Vacuum distillation 2

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edtihcc

Chemical
Dec 29, 2003
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Hi,
I am working on a batch vacuum distillation process that separates methanol,water and an unknown ingredient sensitive to temperature that degrades above 35 deg celsius.
There are foaming and bumping problems especially severe after the contents have been transferred in the batch reactor and start pulling a vacuum to about 0.14mbarA.
How do I go about trying to reduce the bumping and foaming problems?
THe temperature is jacket controlled and it fluctuates severely during the bumping. I am not sure if the bumping causes it or it causes the bumping. Does anyone know more about vacuum distillation and answers to these?
 
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Yes there is no way I can add anti-foaming agents or acid etc to neutralize the solution...
we don't wanna cause any side reactions or contamination to the substance...

only way is to change agitation speed or other operating conditions to improve the situation.

How do u know what is the best agitation speed to operate it at to reduce foam?
 
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