发明名称 |
PROCESS FOR THE PRODUCTION OF PURE DIMETHYL ETHER |
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 |
NZ222597(A) |
申请公布日期 |
1990.09.26 |
申请号 |
NZ19870222597 |
申请日期 |
1987.11.18 |
申请人 |
UNION RHEINISCHE BRAUNKOHLEN KRAFTRSTOFF AG |
发明人 |
DORNHAGEN, HORST;HAMMER, HARTMUT;MEISENBURG, EWALD;HAAS, BERND |
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 |
|
代理人 |
|
主权项 |
|
地址 |
|