| PATENT ASSIGNEE'S COUNTRY | Germany |
| UPDATE | 05.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Mfg process - Gas phase oxidation of 1,3-butadiene in presence of Ag- contg catalyst wherein coking deposits have reduced the catalyst activity to < 50% of initial value, the IMPROVEME NT for reactivating catalyst which comprises treat. deactiva ted catalyst apart from epoxidation process in a separate step with gas mixt consisting of water vapor (> 5%) & O (5-95%) |
| PATENT PHOTOCOPY | Available on request |
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