JPS4949931A - - Google Patents
Info
- Publication number
- JPS4949931A JPS4949931A JP48054169A JP5416973A JPS4949931A JP S4949931 A JPS4949931 A JP S4949931A JP 48054169 A JP48054169 A JP 48054169A JP 5416973 A JP5416973 A JP 5416973A JP S4949931 A JPS4949931 A JP S4949931A
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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 (2)
| Publication Number | Publication Date |
|---|---|
| JPS4949931A true JPS4949931A (en:Method) | 1974-05-15 |
| JPS5632977B2 JPS5632977B2 (en:Method) | 1981-07-31 |
Family
ID=23003307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5416973A Expired JPS5632977B2 (en:Method) | 1972-06-19 | 1973-05-17 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3847977A (en:Method) |
| JP (1) | JPS5632977B2 (en:Method) |
| BE (1) | BE801069A (en:Method) |
| CA (1) | CA991656A (en:Method) |
| DE (1) | DE2331251C2 (en:Method) |
| FR (1) | FR2189364B1 (en:Method) |
| GB (1) | GB1386582A (en:Method) |
| IT (1) | IT987750B (en:Method) |
| NL (1) | NL184779C (en:Method) |
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 (en:Method) * | ||||
| US3717674A (en) * | 1968-02-15 | 1973-02-20 | Celanese Corp | Thermal purification of terephthalic acid using a carboxylic acid-c8 aromatic solvent |
-
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/xx 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 |
|---|---|
| NL7308481A (en:Method) | 1973-12-21 |
| JPS5632977B2 (en:Method) | 1981-07-31 |
| US3847977A (en) | 1974-11-12 |
| FR2189364B1 (en:Method) | 1978-09-29 |
| FR2189364A1 (en:Method) | 1974-01-25 |
| DE2331251C2 (de) | 1983-04-07 |
| BE801069A (fr) | 1973-12-18 |
| GB1386582A (en) | 1975-03-12 |
| NL184779C (nl) | 1989-11-01 |
| DE2331251A1 (de) | 1974-01-24 |
| CA991656A (en) | 1976-06-22 |
| IT987750B (it) | 1975-03-20 |
| NL184779B (nl) | 1989-06-01 |