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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...

The foaming is due to the Ammonia in the mother liquor.. other than degassing..is there other way of removing the ammonia to minimize the foaming? I can't add anti-foaming agents in because the mother liquor that i'm distilling is used for consumption. Also, i'm not using a reboiler..but a...

Yes it boils at 0.14mbara. This is because it is a mixture of methanol and water with the unknown dissolved solid. The composition of water is about 10% only. I suspect that the condenser is limiting the vacuum pump from establishing a better vacuum in the system. Is there anyway I can...

When using a vacuum pump to maintain vacuum in a distillation, is it true that upon establishing a vacuum, it should be running at lower speeds as the process goes because there is less vapour produced? if it runs at full speed all the time to maintain the pressure, what could be the problem?

I made a typo error.. the vacuum pressure is at 0.14 bara not 0.14mbara..

To 252362, there is another unknown component in the distillation process..with that I think it will affect the boiling point right? QUestion: Why is it necessary to maintain the vacuum pump speed during the distillation process to increase distillation rate? Should it be pulling at a lower...

Thank you so much for all the tips... How do you go about calculating the bp of methanol & water at low pressures such as the vacuum pressure? Since in most cases the actual composition of the solution is not known. This is cause i was trying to determine what is the max. pressure i can go...

Thanks for the helpful tip. To joechem, so the best way is to ramp up the vacuum slowly? Any idea when u did that, did u like double the cycle time or worse? Because I am suppose to improve cycle time and distillation efficiency including solving the bumping problem. There is only...

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...