发明名称 |
Process and apparatus for producing terephthalic acid with high purity |
摘要 |
Terephthalic acid with a high purity for direct polymerization with glycols is produced by oxidizing p-tolualdehyde with a gas containing molecular oxygen in water as a solvent in the presence of bromine ions in an oxidation reactor using zirconium as a reactor material.
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申请公布号 |
US4297507(A) |
申请公布日期 |
1981.10.27 |
申请号 |
US19800133106 |
申请日期 |
1980.03.24 |
申请人 |
MITSUBISHI GAS CHEMICAL CO. INC. |
发明人 |
KOMATSU, MAKOTO;TAKAMIZAWA, YUJI;OHTA, TAZUO |
分类号 |
C07C63/26;C07C51/00;C07C51/265;C07C67/00;(IPC1-7):C07C51/16 |
主分类号 |
C07C63/26 |
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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