IN152346B - - Google Patents
Info
- Publication number
- IN152346B IN152346B IN303/CAL/80A IN303CA1980A IN152346B IN 152346 B IN152346 B IN 152346B IN 303CA1980 A IN303CA1980 A IN 303CA1980A IN 152346 B IN152346 B IN 152346B
- Authority
- IN
- India
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
- C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
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 |
|---|---|---|---|
| DE19792911667 DE2911667A1 (de) | 1979-03-24 | 1979-03-24 | Verfahren zur gewinnung von 2-hydroxynaphthalin-3-carbonsaeure aus den umsetzungsgemischen der alkalisalze des 2-hydroxynaphthalins mit kohlendioxid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN152346B true IN152346B (ja) | 1983-12-24 |
Family
ID=6066345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN303/CAL/80A IN152346B (ja) | 1979-03-24 | 1980-03-17 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4415750A (ja) |
| EP (1) | EP0017771B1 (ja) |
| JP (1) | JPS55129244A (ja) |
| DE (2) | DE2911667A1 (ja) |
| IN (1) | IN152346B (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3307637A1 (de) * | 1983-03-04 | 1984-09-06 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von reinen 1-hydroxy-2-naphtoesaeurealkylestern |
| DE3407100A1 (de) * | 1984-02-28 | 1985-08-29 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von 6-acetoxy-2-naphthoesaeure |
| JPH10265434A (ja) * | 1997-03-21 | 1998-10-06 | Ueno Seiyaku Oyo Kenkyusho:Kk | ヒドロキシナフタレンカルボン酸類のアルカリ金属塩の分離精製法 |
| CN114057566A (zh) * | 2021-12-09 | 2022-02-18 | 宁夏清研高分子新材料有限公司 | 一种2-羟基-6-萘甲酸的制备方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2723290A (en) * | 1951-08-17 | 1955-11-08 | Heyden Chemical Corp | Process for the crystallization of 2-hydroxy-3-naphthoic acid |
| US3468942A (en) * | 1966-10-05 | 1969-09-23 | Tenneco Chem | Method for the recovery of hydroxy aromatic carboxylic acids |
| US3530174A (en) * | 1966-10-05 | 1970-09-22 | Tenneco Chem | Purification of organic acids |
| NL7506445A (nl) * | 1974-06-04 | 1975-12-08 | Hoechst Ag | Werkwijze voor het winnen van 2-hydroxynaftaleen- carbonzuren uit reactiemengsels van alkalizouten van 2-hydroxynaftaleen met kooldioxyde. |
| DE2449779A1 (de) * | 1974-10-19 | 1976-04-29 | Basf Ag | Verfahren zur herstellung von 2-hydroxy-naphthalin-3-carbonsaeure |
-
1979
- 1979-03-24 DE DE19792911667 patent/DE2911667A1/de not_active Withdrawn
-
1980
- 1980-03-17 IN IN303/CAL/80A patent/IN152346B/en unknown
- 1980-03-17 EP EP80101391A patent/EP0017771B1/de not_active Expired
- 1980-03-17 DE DE8080101391T patent/DE3060026D1/de not_active Expired
- 1980-03-21 JP JP3484280A patent/JPS55129244A/ja active Granted
-
1982
- 1982-03-15 US US06/358,314 patent/US4415750A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6310942B2 (ja) | 1988-03-10 |
| JPS55129244A (en) | 1980-10-06 |
| DE2911667A1 (de) | 1980-10-02 |
| US4415750A (en) | 1983-11-15 |
| EP0017771B1 (de) | 1981-09-23 |
| DE3060026D1 (en) | 1981-12-10 |
| EP0017771A1 (de) | 1980-10-29 |