| 发明名称 |
Elevated pressure phthalic anhydride process. |
| 摘要 |
<p>The present invention is an improvement to the conventional process for the production of phthalic anhydride. In particular, the present invention enables the crude phthalic anhydride product to be recovered in a more efficient manner.</p> |
| 申请公布号 |
EP0574855(A2) |
申请公布日期 |
1993.12.22 |
| 申请号 |
EP19930109457 |
申请日期 |
1993.06.14 |
| 申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
CHEN, MICHAEL SHI-KUAN;COOK, PHILIP JOSEPH;GUNARDSON, HAROLD HENRY;ULRICH, MELINDA BEDICS |
| 分类号 |
C07C51/265;C07C51/31;(IPC1-7):C07C51/573;C07D307/89 |
主分类号 |
C07C51/265 |
| 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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