Separation of methanol from propylene oxide
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Everyone, has anyone ever worked on the separation of methanol and propylene oxide? Do the two have an azeotrope?
There are azeotropes; I’m giving it a try:victory:
The poster is referring to the one-step process for producing propylene oxide from propylene, right? At the reaction outlet, unreacted propylene is separated first, followed by the separation of crude PO; methanol and water are then purified through conventional distillation or double-effect distillation. For crude PO containing impurities such as methanol and propanol, BASF uses 87% tert-butanol for extractive distillation.
I need to understand how propylene is used to produce propylene oxide in one step. Thank you
Has the original poster performed simulation calculations for this process? Which thermodynamic equation would be suitable? Normal distillation and extractive distillation of methanol-water-propylene-propylene oxide.
Could you provide a detailed explanation regarding butanol as an extractant?
Is this data accurate? Can we continue the conversation? Evonik uses water as the extractant