发明名称 |
Process for manufacturing high purity methacrylic acid |
摘要 |
<p>A process is provided herein for the high yield production of high purity glacial methacrylic acid ("HPMAA") that is substantially pure, specifically 99% pure or greater with a water content of 0.05% or less. This improved process comprises providing a crude MAA stream and purifying the crude methacrylic acid stream in a series of successive distillation steps</p> |
申请公布号 |
EP1361203(A2) |
申请公布日期 |
2003.11.12 |
申请号 |
EP20030252664 |
申请日期 |
2003.04.26 |
申请人 |
ROHM AND HAAS COMPANY |
发明人 |
BRIEGEL, KEITH FREDERICK;DAY, JAMES CLARENCE;DECOURCY, MICHAEL STANLEY;EBERT, DONALD ALAN;JULIETTE, JAMIE JERRICK JOHN |
分类号 |
B01D3/14;C07C51/44;C07C51/50;C07C57/07 |
主分类号 |
B01D3/14 |
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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