| 发明名称 |
METHOD FOR PRODUCING METHYLMETHACRYLATE |
| 摘要 |
The present invention relates to a process for producing methyl methacrylate, comprising the following steps:
A) producing methacrolein andB) reacting the methacrolein obtained in step A) in an oxidative esterification reaction to give methyl methacrylate,
characterized in that the two steps A) and B) take place in a liquid phase at a pressure of from 2 to 100 bar, and step B) is carried out in the presence of a heterogeneous noble-metal-containing catalyst comprising metals and/or comprising metal oxides. |
| 申请公布号 |
US2016068464(A1) |
申请公布日期 |
2016.03.10 |
| 申请号 |
US201414784320 |
申请日期 |
2014.04.11 |
| 申请人 |
KRILL Steffen;BALDUF Torsten;KÖSTNER Martin;GRÖMPING Matthias;LYGIN Alexander;BURGHARDT Rudolf |
发明人 |
KRILL Steffen;BALDUF Torsten;KOESTNER Martin;GROEMPING Matthias;LYGIN Alexander;BURGHARDT Rudolf |
| 分类号 |
C07C67/39;C07C45/75 |
主分类号 |
C07C67/39 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A process for producing methyl methacrylate, the process comprising:
A) producing methacrolein from propanal and formaldehyde and B) reacting methacrolein in an oxidative esterification reaction to obtain methyl methacrylate, wherein the producing A) and the reacting B) take place in a liquid phase at a pressure of from 2 to 100 bar, and the reacting B) is carried out in the presence of a heterogeneous noble-metal-comprising catalyst comprising a metal and/or a metal oxide. |
| 地址 |
Mühltal DE |
