发明名称 |
Process for preparing dialkyl carbonates |
摘要 |
The present invention relates to a continuous process for preparing lower dialkyl carbonates as main product and alkylene glycol as by-product by transesterification of a cyclic alkylene carbonate (e.g. ethylene carbonate or propylene carbonate) with lower alkyl alcohols in the presence of a catalyst and also the required purification of the dialkyl carbonate in a subsequent process step. To optimize the economics and energy efficiency of the process, additional devices are used for intermediate heating of the liquid streams in the apparatus.
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申请公布号 |
US8552214(B2) |
申请公布日期 |
2013.10.08 |
申请号 |
US201113018592 |
申请日期 |
2011.02.01 |
申请人 |
OOMS PIETER;RISSE FRIEDHELM;DUEX ANDRE;BUCHALY CARSTEN;PANCUR THOMAS;SUSANTO ARTHUR;RONGE GEORG;VANDEN EYNDE JOHAN;WUYTACK WIM;BAYER MATERIALSCIENCE AG |
发明人 |
OOMS PIETER;RISSE FRIEDHELM;DUEX ANDRE;BUCHALY CARSTEN;PANCUR THOMAS;SUSANTO ARTHUR;RONGE GEORG;VANDEN EYNDE JOHAN;WUYTACK WIM |
分类号 |
C07C69/96 |
主分类号 |
C07C69/96 |
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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