发明名称 |
A PROCESS FOR PRODUCING PURE DIMETHYLETHER |
摘要 |
<p>Pure dimethyl ether is prepared by catalytic dehydration of methanol over a gamma -Al2O3 catalyst which preferably contains small amounts of SiO2 and purification of the dehydration product by addition thereof to a distillation column to obtain pure dimethyl ether on certain plates of this column and taking off the pure dimethyl ether and impurities above certain plates of the same column.</p> |
申请公布号 |
IN168048(B) |
申请公布日期 |
1991.01.26 |
申请号 |
IN1014DE1986 |
申请日期 |
1986.11.20 |
申请人 |
UNION RHEINISCHE BRAUNKOHLEN KRAFTSTOFF AG |
发明人 |
DORNHAGEN HORST;HAMMER HARTMUT;MEISENBURG EWALD |
分类号 |
C07C43/04;B01J21/06;B01J21/12;C07B61/00;C07C;C07C41/00;C07C41/09;C07C41/42;C07C67/00;(IPC1-7):C07C43/04 |
主分类号 |
C07C43/04 |
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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