发明名称 |
PROCESS FOR PRODUCING 1,4-BUTANEDIOL, GAMMA-BUTYROLACTONE AND TETRAHYDROFURAN BY HYDROGENATING DIALKYL MALEATE IN MIXED LIQUID/VAPOR PHASE |
摘要 |
A process for the production of 1,4-butanediol and tetrahydrofuran by catalytic hydrogenation of dialkyl maleates includes the following steps: a) hydrogenating a stream of dialkyl maleate in a first stage of reaction over suitable catalysts to produce dialkyl succinate; b) further hydrogenating the dialkyl succinate in a second stage of reaction, by using a different suitable catalyst, for producing mainly 1,4-butanediol, together with gamma-butyrolactone and tetrahydrofuran as co-products. In both stages of reaction the conditions, as hydrogen/organic feed ratio, pressure and temperature, are such to maintain the reactors in mixed liquid/vapor phase. |
申请公布号 |
EP2782893(A1) |
申请公布日期 |
2014.10.01 |
申请号 |
EP20110810696 |
申请日期 |
2011.11.25 |
申请人 |
CONSER S.P.A. |
发明人 |
SIMOLA, Flavio;SCARSELLA, Marco;DE FILIPPIS, Paolo |
分类号 |
C07C67/303;C07C29/149;C07C29/17;C07D307/08;C07D307/20;C07D307/33 |
主分类号 |
C07C67/303 |
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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