Separation of solvents isobutanol/toulene

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I am trying to separate isobutanol from toulene as it is mixed in at about 10% isobutanol.

The isobutanol is not wanted as it poisons the catalyst, i have tried water washes as it is water soluble.

Does anyone know if this is possible, or should i go hunting for cleaner solvents?

Thank you for reading

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You can remove with azeotropic distillation, but you’ll still need a GC to be sure your solvent is good before using in a reaction. Toluene is cheap, just buy better toluene.

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