| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 11.99 |
| PATENT ASSIGNEE | UOP |
| PATENT CLAIMS |
Low pressure catalytic distn process for producing said ether stream contg < 0.6% EtOH - Introducing EtOH, Isobutene, & stream contg n-butane (as azeotropic agent) to etherification zone having a catalytic distn column that contains etherification catalyst & operates at 80-120 psig, said n-butane being introduced to column in amounts sufficient to form azeotrope with unreacted EtOH & thereby provide title ether stream contg < 0.6% EtOH & an overhead stream contg an azeotrope of EtOH & n-butane - Removing ether stream from distn column - Removing overhead stream from column |
| PATENT PHOTOCOPY | Available on request |
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