BE838647A - Procede pour empecher le noircissement d'acide phtalique - Google Patents
Procede pour empecher le noircissement d'acide phtaliqueInfo
- Publication number
- BE838647A BE838647A BE164392A BE164392A BE838647A BE 838647 A BE838647 A BE 838647A BE 164392 A BE164392 A BE 164392A BE 164392 A BE164392 A BE 164392A BE 838647 A BE838647 A BE 838647A
- Authority
- BE
- Belgium
- Prior art keywords
- blackening
- preventing
- phthalic acid
- phthalic
- acid
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50020090A JPS5198234A (en) | 1975-02-18 | 1975-02-18 | Futarusanno kokushokukaoboshisuruhoho |
Publications (1)
Publication Number | Publication Date |
---|---|
BE838647A true BE838647A (fr) | 1976-06-16 |
Family
ID=12017395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE164392A BE838647A (fr) | 1975-02-18 | 1976-02-17 | Procede pour empecher le noircissement d'acide phtalique |
Country Status (9)
Country | Link |
---|---|
US (1) | US4214100A (xx) |
JP (1) | JPS5198234A (xx) |
BE (1) | BE838647A (xx) |
CA (1) | CA1049552A (xx) |
DE (1) | DE2605363C3 (xx) |
FR (1) | FR2301507A1 (xx) |
GB (1) | GB1508241A (xx) |
IT (1) | IT1057191B (xx) |
NL (1) | NL179903C (xx) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55145637A (en) * | 1979-05-02 | 1980-11-13 | Teijin Hercules Kk | Preparation of aromatic carboxylic acid or its methyl ester |
JPH03112526A (ja) * | 1989-09-28 | 1991-05-14 | Matsushita Electric Ind Co Ltd | 野菜切り機 |
JPH08325197A (ja) * | 1995-05-30 | 1996-12-10 | Mitsubishi Gas Chem Co Inc | テレフタル酸の製造方法 |
WO2000015593A2 (en) | 1998-09-10 | 2000-03-23 | Exxon Chemical Patents Inc. | Process for making aromatic aldehydes |
CN113214078A (zh) * | 2021-05-26 | 2021-08-06 | 宜兴市阳洋塑料助剂有限公司 | 一种利用对苯二甲酸生产废料回收制备对苯二甲酸二辛酯的方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2963509A (en) * | 1958-03-10 | 1960-12-06 | Mid Century Corp | Process for oxidation of mono-alkyl benzene |
JPS5136258B1 (xx) * | 1963-04-02 | 1976-10-07 | ||
US3595908A (en) * | 1966-11-01 | 1971-07-27 | Inst Francais Du Petrole | Two-step oxidation of paraxylene for the production of terephthalic acid |
DE2154147C3 (de) * | 1970-11-01 | 1978-03-16 | Maruzen Oil Co., Ltd., Osaka (Japan) | Verfahren zur Herstellung von Terephthalsäure |
-
1975
- 1975-02-18 JP JP50020090A patent/JPS5198234A/ja active Granted
-
1976
- 1976-02-02 GB GB4044/76A patent/GB1508241A/en not_active Expired
- 1976-02-11 DE DE2605363A patent/DE2605363C3/de not_active Expired
- 1976-02-12 CA CA245,578A patent/CA1049552A/en not_active Expired
- 1976-02-13 IT IT67334/76A patent/IT1057191B/it active
- 1976-02-17 BE BE164392A patent/BE838647A/xx not_active IP Right Cessation
- 1976-02-17 NL NLAANVRAGE7601600,A patent/NL179903C/xx not_active IP Right Cessation
- 1976-02-17 FR FR7604303A patent/FR2301507A1/fr active Granted
-
1977
- 1977-12-05 US US05/857,709 patent/US4214100A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE2605363B2 (de) | 1978-10-26 |
FR2301507B1 (xx) | 1979-02-02 |
JPS5198234A (en) | 1976-08-30 |
DE2605363C3 (de) | 1979-07-12 |
CA1049552A (en) | 1979-02-27 |
NL7601600A (nl) | 1976-08-20 |
DE2605363A1 (de) | 1976-08-26 |
FR2301507A1 (fr) | 1976-09-17 |
NL179903C (nl) | 1986-12-01 |
GB1508241A (en) | 1978-04-19 |
US4214100A (en) | 1980-07-22 |
IT1057191B (it) | 1982-03-10 |
NL179903B (nl) | 1986-07-01 |
JPS5628897B2 (xx) | 1981-07-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: MITSUBISHI GAS CHEMICAL CY INC. Effective date: 19920228 |