| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 06.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
- First distn. column at atm. pressure - Second distn. column having > 30 plates & operated at 40 - 760 mmHg & reflux ratio > 4 Wherein overhead vapor from first column is used as heat source for reboiler for second column Pressure of second column < than that of first column |
| PATENT PHOTOCOPY | Available on request |
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