发明名称 |
Process for preparation of ethers in a catalytic distillation column |
摘要 |
A process for preparing ethers includes the steps of: providing a feedstock containing iso-olefins selected from the group consisting of C5 iso-olefins, C6 iso-olefins and mixtures thereof; mixing the feedstock with alkyl alcohol so as to provide a reaction feedstock, feeding the reaction feedstock to a reactor zone in the presence of a first etherification catalyst whereby the alkyl alcohol reacts with the iso-olefins to form alkyl-tert-alkyl ethers so as to provide an intermediate feedstock containing the ethers and unreacted iso-olefins and alkyl alcohol; feeding the intermediate feedstock to a catalytic distillation column having a second etherification catalyst defining a catalytic zone; mixing additional alkyl alcohol to the intermediate feedstock so as to form azeotropes of the alkyl alcohol with the unreacted iso-olefins without forming azeotropes of the alkyl alcohol with the ethers whereby the catalytic zone is substantially free of the ethers and the unreacted iso-olefins react with said alkyl alcohol in the catalytic zone to form additional alkyl-tert-alkyl ethers. |
申请公布号 |
EP1044951(B1) |
申请公布日期 |
2003.06.18 |
申请号 |
EP20000107350 |
申请日期 |
2000.04.05 |
申请人 |
INTEVEP SA |
发明人 |
ESCALANTE, LEONARDO;GONZALEZ, JOSE CASTOR;HERNANDEZ, ZAIDA |
分类号 |
B01J31/08;B01D3/00;B01J31/28;C07B61/00;C07C41/06;C07C41/42;C07C43/04 |
主分类号 |
B01J31/08 |
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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