发明名称 |
Process for purifying acrylic acid. |
摘要 |
<p>The present invention provides a continuous process for producing a pure grade of acrylic acid having residual aldehyde levels under 10 parts per million. The process applies two selected groups of amines (chosen from the groups consisting of primary arylamines, hydrazines, alkylenepolyamines and alpha-amino acids) at different points of the continuous process.</p> |
申请公布号 |
EP0685448(A1) |
申请公布日期 |
1995.12.06 |
申请号 |
EP19950303308 |
申请日期 |
1995.05.17 |
申请人 |
ROHM AND HAAS COMPANY |
发明人 |
BAUER, WILLIAM, JR.;MASON, ROBERT MICHAEL;HALE, TIMOTHY ALLEN;UPMACIS, RITA KARINA |
分类号 |
C07C57/07;C07C51/44;C07C51/487;C07C51/50;C07C57/04;C07C57/075;(IPC1-7):C07C57/04 |
主分类号 |
C07C57/07 |
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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