LU72627A1 - - Google Patents
Info
- Publication number
- LU72627A1 LU72627A1 LU72627A LU72627A LU72627A1 LU 72627 A1 LU72627 A1 LU 72627A1 LU 72627 A LU72627 A LU 72627A LU 72627 A LU72627 A LU 72627A LU 72627 A1 LU72627 A1 LU 72627A1
- Authority
- LU
- Luxembourg
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
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742426852 DE2426852C3 (de) | 1974-06-04 | Verfahren zur Gewinnung von 2-Hydroxynaphthalincarbonsäuren aus den Umsetzungsgemischen der Alkalisalze des 2-Hydroxynaphthalins mit Kohlendioxid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU72627A1 true LU72627A1 (xx) | 1977-03-03 |
Family
ID=5917242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU72627A LU72627A1 (xx) | 1974-06-04 | 1975-06-02 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4057576A (xx) |
| JP (1) | JPS514153A (xx) |
| BE (1) | BE829868A (xx) |
| CH (1) | CH599096A5 (xx) |
| DK (1) | DK248275A (xx) |
| FR (1) | FR2273792A1 (xx) |
| GB (1) | GB1507053A (xx) |
| IT (1) | IT1038659B (xx) |
| LU (1) | LU72627A1 (xx) |
| NL (1) | NL7506445A (xx) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4239913A (en) * | 1977-10-25 | 1980-12-16 | Kabushiki Kaisha Veno Seiyaku Oyo Kenkyujo | Process for preparing 2-hydroxynaphthalenecarboxylic acids |
| DE2911667A1 (de) * | 1979-03-24 | 1980-10-02 | Hoechst Ag | Verfahren zur gewinnung von 2-hydroxynaphthalin-3-carbonsaeure aus den umsetzungsgemischen der alkalisalze des 2-hydroxynaphthalins mit kohlendioxid |
| DE3307637A1 (de) * | 1983-03-04 | 1984-09-06 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von reinen 1-hydroxy-2-naphtoesaeurealkylestern |
| JPS61202374U (xx) * | 1985-06-11 | 1986-12-19 | ||
| JPS61202375U (xx) * | 1985-06-11 | 1986-12-19 | ||
| JPS61202376U (xx) * | 1985-06-11 | 1986-12-19 | ||
| JPS62557U (xx) * | 1985-06-17 | 1987-01-06 | ||
| JPS6213861U (xx) * | 1985-07-11 | 1987-01-27 | ||
| JPS6213859U (xx) * | 1985-07-11 | 1987-01-27 | ||
| JPS6213860U (xx) * | 1985-07-11 | 1987-01-27 | ||
| JPS6213862U (xx) * | 1985-07-11 | 1987-01-27 | ||
| DE3800989A1 (de) * | 1988-01-15 | 1989-07-27 | Hoechst Ag | Verfahren zur reinigung von 2-hydroxy-naphthalin-6-carbonsaeure |
| US5075496A (en) * | 1990-12-14 | 1991-12-24 | Aristech Chemical Corporation | Manufacture of 2,6-hydroxynaphthoic acid |
| 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 |
| TW527451B (en) * | 1999-08-24 | 2003-04-11 | Ueno Seiyaku Oyo Kenkyujo Kk | Columnar crystals of 6-hydroxy-2-naphthoic acid and process for manufacturing the same |
| CN104892406B (zh) * | 2015-06-09 | 2016-08-03 | 温州泓呈祥科技有限公司 | 一种2-羟基-3-萘甲酸的工业制备方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2132356A (en) * | 1937-04-29 | 1938-10-04 | Calco Chemical Co Inc | Carboxylation of alkali metal salts of phenols |
| US2534022A (en) * | 1948-04-05 | 1950-12-12 | Tewin Ind Inc | Manufacture of salts of 2:1-hydroxynaphthoic acid |
| US2544881A (en) * | 1949-09-13 | 1951-03-13 | Du Pont | Preparation of anhydrous sodium beta-naphtholate and carbonation thereof |
| US2807643A (en) * | 1953-02-09 | 1957-09-24 | Shell Dev | Preparation of aromatic acids and salts thereof |
| US3228963A (en) * | 1961-12-22 | 1966-01-11 | Union Oil Co | Process for purification of complex acids |
| US3405169A (en) * | 1965-07-14 | 1968-10-08 | Universal Oil Prod Co | Process for the preparation of hydroxy naphthoic acids |
| US3405170A (en) * | 1965-07-14 | 1968-10-08 | Universal Oil Prod Co | Process for the preparation of hydroxy naphthoic acids |
| DE1643537B2 (de) * | 1966-08-16 | 1976-09-16 | Toray Industries, Inc., Tokio | Verfahren zur herstellung von metallsalzen aromatischer hydroxycarbonsaeuren oder deren freie saeuren |
-
1975
- 1975-05-30 NL NL7506445A patent/NL7506445A/xx not_active Application Discontinuation
- 1975-05-30 CH CH704175A patent/CH599096A5/xx not_active IP Right Cessation
- 1975-06-02 LU LU72627A patent/LU72627A1/xx unknown
- 1975-06-03 JP JP50066115A patent/JPS514153A/ja active Pending
- 1975-06-03 DK DK248275A patent/DK248275A/da unknown
- 1975-06-03 US US05/583,295 patent/US4057576A/en not_active Expired - Lifetime
- 1975-06-03 IT IT23977/75A patent/IT1038659B/it active
- 1975-06-04 BE BE157034A patent/BE829868A/xx unknown
- 1975-06-04 FR FR7517371A patent/FR2273792A1/fr active Granted
- 1975-06-04 GB GB24108/75A patent/GB1507053A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2426852B2 (de) | 1977-05-18 |
| JPS514153A (en) | 1976-01-14 |
| US4057576A (en) | 1977-11-08 |
| GB1507053A (en) | 1978-04-12 |
| FR2273792B1 (xx) | 1978-10-13 |
| BE829868A (fr) | 1975-12-04 |
| IT1038659B (it) | 1979-11-30 |
| FR2273792A1 (fr) | 1976-01-02 |
| NL7506445A (nl) | 1975-12-08 |
| DK248275A (da) | 1975-12-05 |
| CH599096A5 (xx) | 1978-05-12 |
| DE2426852A1 (de) | 1976-01-02 |