发明名称 |
Process for the production of aromatic acids |
摘要 |
A description is given here of a novel process for the production of monocarboxylic and polycarboxylic aromatic acids by the catalytic oxidation in homogeneous phase of aromatic compounds carrying at least one oxidizable substituent group attached directly to the carbon atom of the corresponding aromatic nucleus. The novel process according to the present invention comprises the steps of: a) catalytically oxidizing the corresponding aromatic precursors in liquid phase in the presence of gaseous oxygen; b) filtering the end product; c) recycling into the oxidation reactor at least part of the mother liquors resulting from the filtration stage, and is characterized by the fact that said steps from (a) to (c) are carried out in a closed and continuous cycle operating substantially under the same pressure and temperature conditions, preferably at 2-10 barg and 100-140° C. |
申请公布号 |
AU3815400(A) |
申请公布日期 |
2000.10.16 |
申请号 |
AU20000038154 |
申请日期 |
2000.03.24 |
申请人 |
FRANCO CODIGNOLA;ANTONIO MORO |
发明人 |
FRANCO CODIGNOLA;ANTONIO MORO |
分类号 |
B01J8/00;B01J19/18;C07C51/265 |
主分类号 |
B01J8/00 |
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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