发明名称 |
Hydrogenation of methylenedianiline |
摘要 |
<p>The invention is directed to an improvement in a catalytic process for the ring hydrogenation of a methylenedianiline feedstock, including crude methylenedianiline. One component of the improvement is a pretreatment process which resides in passing the crude methylenedianiline feedstock over a ruthenium catalyst carried on a fixed bed support, cooling without venting, and then hydrogenation of the pretreated crude methylenedianiline feedstock over a rhodium catalyst or a mixed Rh/Ru catalyst carried on a monolith support and carrying out the ring hydrogenation in a batch reaction. Another component in the improvement is the employment of a catalyst comprised of rhodium and ruthenium carried on a monolith support.</p> |
申请公布号 |
EP1630155(A1) |
申请公布日期 |
2006.03.01 |
申请号 |
EP20050018017 |
申请日期 |
2005.08.18 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
DING, HAO;CARTOLANO, ANTHONY ROCCO;DHOLAKIA, VIPUL P.;VEDAGE, GAMINI ANANDA |
分类号 |
C07C209/72;C07C211/36 |
主分类号 |
C07C209/72 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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