| Title: | Method for hydrogenating dinitriles | ||
| Application Number: | 98812742 | Application Date: | 1998.11.19 |
| Publication Number: | 1283179 | Publication Date: | 2001.02.07 |
| Approval Pub. Date: | 2003.08.06 | Granted Pub. Date: | 2003.08.06 |
| International Classifi-cation: | B01J10/00;B01J19/24;C07C209/48;C07C253/30 | ||
| Applicant(s) Name: | Rhodia Fiber and Resin Intermediates | Address: | |
| Inventor(s) Name: | V. Boschat;P. Leconte;D. Rochette | ||
| Attorney & Agent: | wang jie | ||
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Abstract: |
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| The invention concerns a method for hydrogenating aliphatic dinitriles at least partly into corresponding aminonitriles. More particularly, it concerns a method for continuous hydrogenation of dinitrile, at least partly into corresponding aminonitrile, in the presence of a hydrogenation catalyst non-dissolved in the reaction medium. The invention is characterised in that it is carried out in an equipment comprising continuous means separating the hydrogenate and the catalyst in a zone wherein the gas-liquid transfer is limited or nil, said separation and recycling of the catalyst being carried out in a time interval of not more than 30 minutes. | |||
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| Time: | 14 | ||
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