Refining of tertiary butylstyrene

C - Chemistry – Metallurgy – 07 – C

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C07C 7/08 (2006.01) B01D 3/32 (2006.01) C07C 7/20 (2006.01)

Patent

CA 1220758

EP-4061 REFINING OF TERTIARY BUTYLSTYRENE ABSTRACT Isopropenylstyrene, present in t-butylstyrene in small quantities as an impurity, is removed by extractive distillation using sulfolane as solvent.

480799

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