发明名称 |
PROCESS FOR PRODUCTING TEREPHATHALIC ACID FOR USE IN DIRECT POLYMERIZATION |
摘要 |
<p>A process for producing terephthalic acid of high quality suitable for use in direct polymerization comprising oxidizing a para-dialkylbenzene and/or an oxidized intermediate thereof in the liquid phase with molecular oxygen or a molecular oxygen-containing gas in the presence of an oxidation catalyst containing a heavy metal in a lower aliphatic carboxylic acid solvent, the reaction being carried out in the presence of a specified amount of a phenol. Polyesters prepared from the resulting terephthalic acid have good color.</p> |
申请公布号 |
IN151065(B) |
申请公布日期 |
1983.02.19 |
申请号 |
IN1037CA1978 |
申请日期 |
1978.09.20 |
申请人 |
MATSUYAMA PEIROCHEMICALS INC;MARUZEN OIL CO LTD |
发明人 |
SHIGEYASU MOTOO;YAMAZAKI HATSUTARO;KITAMURA TAKEHIKO |
分类号 |
C07C63/26;B01J27/00;C07B61/00;C07C51/00;C07C51/265;C07C67/00 |
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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