发明名称 |
Process for producing aromatic carboxylic acids and methyl esters thereof. |
摘要 |
<p>A process for producing an aromatic carboxylic acid or its methyl ester which comprises oxidizing at least one aromatic compound having at least one methyl or formyl group directly bonded to a nuclear carbon atom of the aromatic ring in the liquid phase with molecular oxygen or a gas containing molecular oxygen in the presence of a heavy metal compound as a catalyst in the substantial absence of an aliphatic carboxylic acid as a solvent to form the corresponding aromatic carboxylic acid, and if desired, esterifying the oxidation reaction mixture containing the aromatic carboxylic acid with methanol; said oxidation reaction being carried out in the copresence of 0.1 mole to 10 moles, per mole of said heavy metal compound catalyst, of a lithium compound.</p> |
申请公布号 |
EP0018433(A1) |
申请公布日期 |
1980.11.12 |
申请号 |
EP19790103124 |
申请日期 |
1979.08.24 |
申请人 |
TEIJIN HERCULES CHEMICAL CO., LTD. |
发明人 |
TAKEDA, SHINICHI;NONOBE, MASAO;ISHIDA, KENJI;OMOTO, YORIHIKO TEIJIN OKAMOTO SHATAKU A-504;ANNO, TATSURO |
分类号 |
C07C69/82;B01J31/00;C07B61/00;C07C51/00;C07C51/255;C07C51/265;C07C63/04;C07C63/26;C07C65/30;C07C67/00;C07C67/39;C07C69/76;(IPC1-7):07C51/255;07C51/265;07C69/82;07C67/39;07C63/26;07C63/04;01J23/78 |
主分类号 |
C07C69/82 |
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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