发明名称 |
PROCESS FOR PREPARING ETHERS |
摘要 |
<p>IMPROVED PROCESS FOR PREPARING METHYL TERT.-BUTYL ETHER In the process for preparing methyl tert.-alkyl ether comprising the steps of (a) contacting and reacting in the liquid phase a reaction mixture formed by combining a stream consisting essentially of C4-C5 hydrocarbons and containing at least some proportion of isoalkylene and a stoichiometric excess of methanol, with respect to the isoalkylene, to form a reaction product comprising methyl tert.-alkyl ether, unreacted methanol and unreacted C4-C5 hydrocarbons; (b) isolating the methyl tert.-alkyl ether from the reaction product; and (c) recovering the unreacted methanol from the residual portion of the reaction product; the improvement which comprises selectively adsorbing the methanol constituent of said residual reaction product in a bed of crystalline molecular sieve adsorbent and recovering same by desorption using as a purge-desorption stream, the C4-C5 hydrocarbon stream used to prepare the initial reaction mixture.</p> |
申请公布号 |
CA1281743(C) |
申请公布日期 |
1991.03.19 |
申请号 |
CA19850496901 |
申请日期 |
1985.12.05 |
申请人 |
NAGJI, MOEZ M.;GARG, DESH R.;MILLER, WILLIAM C. |
发明人 |
NAGJI, MOEZ M.;GARG, DESH R.;MILLER, WILLIAM C. |
分类号 |
C07C29/76;C07C41/06;C07C41/36;(IPC1-7):C07C41/06;C07C43/04 |
主分类号 |
C07C29/76 |
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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