Distillation of isobutanol, ethylene glycol, and water
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When carrying out the separation of isobutanol and water, an extractant such as ethylene glycol was added. The intention was to evaporate water from the top of the tower; simulation results showed that it is possible to distill isobutanol of extremely high purity from the tower top, while ethylene glycol and water come out from the bottom of the tower. Why is this?
The separation of isobutanol and water does not require the use of ethylene glycol at all.
We produce dibutyl phthalate and diisobutyl phthalate; it is necessary to recover butanol and isobutanol from the wastewater.
Butanol, isobutanol, and water form a heterogeneous azeotropic system – what is the actual recovery rate?
Isobutanol forms an azeotrope with water, at an azeotopic temperature of 89.92°C; the product at the top of the column should be a mixture of isobutanol and water