Mother liquor treatment
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The mother liquor produced during the production of our products contains 65% ethanol, 5% formaldehyde and 30% water. Now I want to recycle ethanol. The formaldehyde content in the recycled ethanol should not exceed 0.1%, and water is not required. Consider using distillation to achieve separation and recovery. Is the process feasible? Can anyone give me some advice? If you can provide a reasonable solution, I will be rewarded with red envelopes (without using chemical or adsorption methods for separation).
This should be easy to implement with two towers. One tower separates water and discharges it from the bottom for sewage treatment. The second tower separates formaldehyde and ethanol. If the two towers are combined into one, water is collected from the bottom, ethanol is collected from the middle, and formaldehyde is collected from the top.
Mother liquor processing is indeed a hassle.
This formaldehyde seems to be difficult to separate.