Method for separating mixtures of paraffin or paraffins with...

Details Method for separating mixtures of paraffin or paraffins with... Method for separating mixtures of paraffin or paraffins with...

B - Operations, Transporting

01

D

202/62

B01D 3/36 (2006.01) C07C 7/05 (2006.01) C07C 29/82 (2006.01)

Patent

CA 1190175

ABSTRACT OF THE DISCLOSURE The separation of homoazeotropic mixtures of a paraffin or paraffins with 6 - 14 C-atoms and an alcohol or alcohols with 4 - 8 C-atoms is carried out in two rectifying steps. In the first step, rectification is carried out in the presence of water as the entraining agent, the resulting distillate being separated, after condensation, into two liquid phases. The organic phase thus obtained is rectified, in a further step, with no addition of water, and the top-product, which consists of a mixture of alcohol and paraffin, is returned to the first step. The paraffin or paraffins, and the alcohol or alcohols are obtained in the lower part of the relevant rectifying steps. Any water in the initial mixture is extracted. Further suitable entraining agents are low-boiling paraffins and/or low-boiling alcohols.

420592

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