Process for the purifying distillation of crude sec-butyl...

Details Process for the purifying distillation of crude sec-butyl... Process for the purifying distillation of crude sec-butyl...

B - Operations, Transporting

01

D

202/62

B01D 3/36 (2006.01) C07C 29/82 (2006.01)

Patent

CA 1310933

PROCESS FOR THE PURIFYING DISTILLATION OF CRUDE SEC-BUTYL ALCOHOL (D#71,200 - DTA-189-F) ABSTRACT OF THE INVENTION Practically anhydrous crude sec-butyl alcohol produced by catalytic direct hydration of n-butenes is freed by means of water from th azeotropically boiling and low- boiling by-products by continuous azeotropic distillation in a separation column, the prepurified anhydrous sec-butyl alcohol obtained is withdrawn and the high-boiling by- products are subsequently separated in a separate column. pr43

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