发明名称 |
Menetelmä alkyylieetterien ja niiden seosten valmistamiseksi |
摘要 |
The invention concerns a process for preparing a tertiary alkyl ether product. The process comprises reacting the isoolefins of an olefinic hydrocarbon feedstock in a reaction zone (1-3) with an alkanol to form a reaction mixture, which is subjected to distillation in a first distillation zone (4). The bottoms product of the first distillation contains the ether(s), whereas the overhead stream contains unreacted alkanol and a mixture of light hydrocarbons. The overhead stream is subjected to a second distillation in a second distillation zone (15). The overhead product of the second distillation mainly contains the lightest hydrocarbons and a small amount of alkanol, and the bottoms product contains an essentially oxygenate-free hydrocarbon stream which can be used as such for alkylation. In order to increase the conversion of the process, a side drawoff is withdrawn from the second distillation zone (15) and recirculated to the reaction zone (1-3). |
申请公布号 |
FI960813(A) |
申请公布日期 |
1997.08.23 |
申请号 |
FI19960000813 |
申请日期 |
1996.02.22 |
申请人 |
NESTE OY |
发明人 |
KOSKINEN, MATTI;LINDQVIST, PETRI;JAERVELIN, HARRI;AITTAMAA, JUHANI |
分类号 |
C07C41/06;C07C41/42;C07C43/04;(IPC1-7):C07C43/04 |
主分类号 |
C07C41/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|