Methanol distillation water solubility fails to meet requirements
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Our company uses 4+1 column distillation. Recently, the water solubility levels of the medium-pressure column and the atmospheric pressure column were found to be unsatisfactory; however, other parameters such as potassium permanganate content, carbonyl compounds, and acidity are within acceptable limits. We have taken some standard measures, but with little effect. I would appreciate any advice from those with more experience!
Go straight to your supplier to resolve the issue. Companies like ours are responsible for the subsequent maintenance and technical support of the distillation towers they supply
I’m not sure if your design for the return tank in the pre-tower includes a liquid level drainage pipeline and an extraction water pipeline; it would be advisable to increase the amount of extraction water used and to discharge liquid at regular intervals!