发明名称 |
Process for preparing alkyl tert-alkyl ethers |
摘要 |
A process for preparing an alkyl-tert-alkyl ether wherein an olefin having a double bond on a tertiary carbon atom and a primary alcohol are reacted in the presence of a catalyst under conditions sufficient to produce an azeotropic alcohol/ether/hydrocarbon mixture containing the alkyl-tert-alkyl ether. The azeotropic alcohol/ether/ hydrocarbon mixture is subjected to a cyclic liquid phase adsorption process sequence to selectively remove the alcohol. The resulting non-azeotropic ether/hydrocarbon stream can then be easily separated by distillation to provide the desired alkyl-tert-alkyl ether product and a hydrocarbon product. The cyclic adsorption process employed to separate the alcohol from the ether/hydrocarbon mixture comprises introducing the alcohol/ether/hydrocarbon mixture into a plurality of adsorption columns containing an alcohol selective adsorbent, wherein each respective adsorption column undergoes successive steps of adsorption and desorption. <IMAGE> |
申请公布号 |
US5030768(A) |
申请公布日期 |
1991.07.09 |
申请号 |
US19900502585 |
申请日期 |
1990.03.30 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
CHEN, MICHAEL S.;SIRCAR, SHIVAJI |
分类号 |
B01J20/18;B01J31/08;C07B61/00;C07C41/01;C07C41/36;C07C43/04 |
主分类号 |
B01J20/18 |
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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