| PATENT ASSIGNEE'S COUNTRY | Taiwan |
| UPDATE | 06.99 |
| PATENT ASSIGNEE | Dairen Chemical (Taipei) |
| PATENT CLAIMS |
Using cryst. aluminosilicate zeolite as catalyst, & subjecting alkanediol to cyclodehydration at 90C - Boil. point of alkane diol to obtain cyclic ether Wherein silica/alumina is 30 - 500:1 & constraint index 1 - 12 |
| PATENT PHOTOCOPY | Available on request |
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