NL8006632A - Werkwijze voor het bereiden van isoftaalzuur. - Google Patents
Werkwijze voor het bereiden van isoftaalzuur. Download PDFInfo
- Publication number
- NL8006632A NL8006632A NL8006632A NL8006632A NL8006632A NL 8006632 A NL8006632 A NL 8006632A NL 8006632 A NL8006632 A NL 8006632A NL 8006632 A NL8006632 A NL 8006632A NL 8006632 A NL8006632 A NL 8006632A
- Authority
- NL
- Netherlands
- Prior art keywords
- acid
- water
- reaction mixture
- isophthalic acid
- reaction
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/104,470 US4259522A (en) | 1979-12-17 | 1979-12-17 | Process for the production of isophtahalic acid |
US10447079 | 1979-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL8006632A true NL8006632A (nl) | 1981-07-16 |
Family
ID=22300665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL8006632A NL8006632A (nl) | 1979-12-17 | 1980-12-05 | Werkwijze voor het bereiden van isoftaalzuur. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4259522A (de) |
JP (1) | JPS5687534A (de) |
BE (1) | BE886680A (de) |
DE (1) | DE3047478A1 (de) |
FR (1) | FR2471361A1 (de) |
IT (1) | IT1141139B (de) |
NL (1) | NL8006632A (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2893860B2 (ja) * | 1990-05-17 | 1999-05-24 | 三菱瓦斯化学株式会社 | 高純度イソフタル酸の製造法 |
US7598415B2 (en) * | 2005-03-22 | 2009-10-06 | Council Of Scientific & Industrial Research | Process for the preparation of p-toluic acid by liquid phase oxidation of p-xylene in water |
CN109999914B (zh) * | 2019-04-17 | 2021-10-15 | 荆州市诺亚化工有限公司 | 一种用于制备间甲基苯甲酸的催化剂及其制备方法与应用 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2723994A (en) * | 1951-01-15 | 1955-11-15 | Shell Dev | Oxidation of xylene and toluic acid mixtures to phthalic acids |
US2833820A (en) * | 1957-06-14 | 1958-05-06 | Mid Century Corp | Process for the preparation of isophthalic and terephthalic acids |
US2833819A (en) * | 1957-06-14 | 1958-05-06 | Mid Century Corp | Process for the preparation of isophthalic and terephthalic acids |
US3064044A (en) * | 1957-08-15 | 1962-11-13 | Standard Oil Co | Multistage oxidation system for preparing dicarboxylic acid |
US3626001A (en) * | 1968-05-09 | 1971-12-07 | Atlantic Richfield Co | Method for the production of high-purity isophthalic or terephthalic acid |
US3919306A (en) * | 1970-05-18 | 1975-11-11 | Atlantic Richfield Co | Purification of recirculated stream for isophthalic acid production |
US3673154A (en) * | 1970-06-26 | 1972-06-27 | Atlantic Richfield Co | Process for the recovery of cobalt catalyst |
US3974214A (en) * | 1974-02-27 | 1976-08-10 | Atlantic Richfield Company | Isophthalic acid manufacture |
CH622766A5 (en) * | 1976-10-26 | 1981-04-30 | Labofina Sa | Process for the preparation of terephthalic acid |
-
1979
- 1979-12-17 US US06/104,470 patent/US4259522A/en not_active Expired - Lifetime
-
1980
- 1980-11-20 JP JP16275280A patent/JPS5687534A/ja active Granted
- 1980-12-03 FR FR8025631A patent/FR2471361A1/fr active Granted
- 1980-12-05 NL NL8006632A patent/NL8006632A/nl not_active Application Discontinuation
- 1980-12-16 BE BE0/203178A patent/BE886680A/fr not_active IP Right Cessation
- 1980-12-17 IT IT26692/80A patent/IT1141139B/it active
- 1980-12-17 DE DE19803047478 patent/DE3047478A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
IT1141139B (it) | 1986-10-01 |
US4259522A (en) | 1981-03-31 |
DE3047478A1 (de) | 1981-10-01 |
FR2471361A1 (fr) | 1981-06-19 |
IT8026692A0 (it) | 1980-12-17 |
FR2471361B3 (de) | 1982-09-03 |
JPS5687534A (en) | 1981-07-16 |
JPS639497B2 (de) | 1988-02-29 |
BE886680A (fr) | 1981-04-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A85 | Still pending on 85-01-01 | ||
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
BV | The patent application has lapsed |