发明名称 |
PROCESS FOR PREPARING PURE DIMETHYLETHER |
摘要 |
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. |
申请公布号 |
YU208087(A) |
申请公布日期 |
1988.10.31 |
申请号 |
YU19870002080 |
申请日期 |
1987.11.17 |
申请人 |
UNION RHEINISCHE BRAUNKOHLEN KRAFTSTOFF AG |
发明人 |
DORNHAGEN H.;HAMMER H.;MEISENBURG E.;HAAS B. |
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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