| 发明名称 |
Process for manufacturing high purity methacrylic acid |
| 摘要 |
<p>A method is provided for removing 2-hydroxyisobutyric acid (HIBA) from a methacrylic acid stream comprising adding a Lewis acid to the stream, decomposing HIBA, and removing the decomposition products via distillation.</p> |
| 申请公布号 |
EP1493729(B1) |
申请公布日期 |
2014.12.24 |
| 申请号 |
EP20040253793 |
申请日期 |
2004.06.25 |
| 申请人 |
ROHM AND HAAS COMPANY |
发明人 |
DE COURCY, MICHAEL STANLEY;ELDER, JAMES EDWARD;JULIETTE, JAMIE JERRICK JOHN |
| 分类号 |
B01D3/14;C07C51/487;C07C51/42;C07C51/44;C07C51/47;C07C51/50;C07C57/04;C07C67/54;C07C69/54 |
主分类号 |
B01D3/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
