BE801069A - Purification des acides aromatiques - Google Patents
Purification des acides aromatiquesInfo
- Publication number
- BE801069A BE801069A BE132396A BE132396A BE801069A BE 801069 A BE801069 A BE 801069A BE 132396 A BE132396 A BE 132396A BE 132396 A BE132396 A BE 132396A BE 801069 A BE801069 A BE 801069A
- Authority
- BE
- Belgium
- Prior art keywords
- purification
- aromatic acids
- aromatic
- acids
- 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
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
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 |
---|---|---|---|
US00263809A US3847977A (en) | 1972-06-19 | 1972-06-19 | Purification process for aromatic acids |
Publications (1)
Publication Number | Publication Date |
---|---|
BE801069A true BE801069A (fr) | 1973-12-18 |
Family
ID=23003307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE132396A BE801069A (fr) | 1972-06-19 | 1973-06-18 | Purification des acides aromatiques |
Country Status (9)
Country | Link |
---|---|
US (1) | US3847977A (fr) |
JP (1) | JPS5632977B2 (fr) |
BE (1) | BE801069A (fr) |
CA (1) | CA991656A (fr) |
DE (1) | DE2331251C2 (fr) |
FR (1) | FR2189364B1 (fr) |
GB (1) | GB1386582A (fr) |
IT (1) | IT987750B (fr) |
NL (1) | NL184779C (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6216060A (ja) * | 1985-07-10 | 1987-01-24 | Hitachi Kiden Kogyo Ltd | リニアステツプモ−タ |
JPS6447260A (en) * | 1987-08-15 | 1989-02-21 | Shinko Electric Co Ltd | Linear dc brushless motor |
US6376223B1 (en) * | 1999-08-04 | 2002-04-23 | Cognis Corporation | Process for purifying polycarboxylic acids |
US7326808B2 (en) * | 2006-03-01 | 2008-02-05 | Eastman Chemical Company | Polycarboxylic acid production system employing cooled mother liquor from oxidative digestion as feed to impurity purge system |
KR101144887B1 (ko) * | 2009-12-16 | 2012-05-14 | 호남석유화학 주식회사 | 이소프탈산의 정제 방법 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD54353A (fr) * | ||||
US3644507A (en) * | 1968-02-15 | 1972-02-22 | Celanese Corp | Thermal purification of terephthalic acid using iodine or bromine catalysts |
-
1972
- 1972-06-19 US US00263809A patent/US3847977A/en not_active Expired - Lifetime
-
1973
- 1973-04-10 CA CA168,334A patent/CA991656A/en not_active Expired
- 1973-05-17 JP JP5416973A patent/JPS5632977B2/ja not_active Expired
- 1973-05-21 IT IT24345/73A patent/IT987750B/it active
- 1973-06-18 BE BE132396A patent/BE801069A/fr not_active IP Right Cessation
- 1973-06-18 FR FR7322038A patent/FR2189364B1/fr not_active Expired
- 1973-06-19 GB GB2893173A patent/GB1386582A/en not_active Expired
- 1973-06-19 NL NLAANVRAGE7308481,A patent/NL184779C/xx not_active IP Right Cessation
- 1973-06-19 DE DE2331251A patent/DE2331251C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3847977A (en) | 1974-11-12 |
JPS5632977B2 (fr) | 1981-07-31 |
FR2189364A1 (fr) | 1974-01-25 |
NL184779B (nl) | 1989-06-01 |
FR2189364B1 (fr) | 1978-09-29 |
NL7308481A (fr) | 1973-12-21 |
CA991656A (en) | 1976-06-22 |
IT987750B (it) | 1975-03-20 |
DE2331251C2 (de) | 1983-04-07 |
DE2331251A1 (de) | 1974-01-24 |
JPS4949931A (fr) | 1974-05-15 |
NL184779C (nl) | 1989-11-01 |
GB1386582A (en) | 1975-03-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: SUN RESEARCH AND DEVELOPMENT CO. Effective date: 19920630 |