发明名称 |
PROCESS FOR PRODUCTION OF DIALKYL CARBONATE AND DIOL |
摘要 |
<p>Disclosed is a process for production of a dialkyl carbonate and a diol from a cyclic carboante and an univalent aliphatic alcohol, in which the cyclic carbonate can be converted at a high conversion rate, the dialkyl carboante and the diol can be produced with a high selectivity, any complicated treatment (e.g., addition of water during the diol distillation/purification process) is not required, and a highly pure diol having a high UV ray transmittance and a low aldehyde content can be produced. A process for production of a dialkyl carbonate and a diol comprising the step of reacting a cyclic carbonate with an univalent aliphatic alcohol in the presence of a catalyst in a transesterification reactor equipped with a tray-type continuous multistage distillation column, wherein the reaction in the distillation column is performed under predetermined conditions (retention time, temperature).</p> |
申请公布号 |
WO2007034669(A1) |
申请公布日期 |
2007.03.29 |
申请号 |
WO2006JP317492 |
申请日期 |
2006.09.05 |
申请人 |
ASAHI KASEI CHEMICALS CORPORATION;MIYAJI, HIRONORI;FUKUOKA, SHINSUKE;HACHIYA, HIROSHI |
发明人 |
MIYAJI, HIRONORI;FUKUOKA, SHINSUKE;HACHIYA, HIROSHI |
分类号 |
C07C27/02;C07C29/128;C07C31/20;C07C68/06;C07C69/96 |
主分类号 |
C07C27/02 |
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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