C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
202/77
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
El Paso Products Company
Gowling Lafleur Henderson Llp
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