DK248275A - Fremgangsmade til udvinding af 2-hydroxynaphthalencarboxylsyrer fra omsetningsblandinger af alkalimetalsalte af 2-hydroxynaphthalen og carbondioxid - Google Patents
Fremgangsmade til udvinding af 2-hydroxynaphthalencarboxylsyrer fra omsetningsblandinger af alkalimetalsalte af 2-hydroxynaphthalen og carbondioxidInfo
- Publication number
- DK248275A DK248275A DK248275A DK248275A DK248275A DK 248275 A DK248275 A DK 248275A DK 248275 A DK248275 A DK 248275A DK 248275 A DK248275 A DK 248275A DK 248275 A DK248275 A DK 248275A
- Authority
- DK
- Denmark
- Prior art keywords
- hydroxynaphthalene
- recovery
- procedure
- carbon dioxide
- carboxylic 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
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural 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 |
---|---|---|---|
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 |
---|---|
DK248275A true DK248275A (da) | 1975-12-05 |
Family
ID=5917242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK248275A DK248275A (da) | 1974-06-04 | 1975-06-03 | Fremgangsmade til udvinding af 2-hydroxynaphthalencarboxylsyrer fra omsetningsblandinger af alkalimetalsalte af 2-hydroxynaphthalen og carbondioxid |
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 |
JPS61202375U (xx) * | 1985-06-11 | 1986-12-19 | ||
JPS61202376U (xx) * | 1985-06-11 | 1986-12-19 | ||
JPS61202374U (xx) * | 1985-06-11 | 1986-12-19 | ||
JPS62557U (xx) * | 1985-06-17 | 1987-01-06 | ||
JPS6213859U (xx) * | 1985-07-11 | 1987-01-27 | ||
JPS6213861U (xx) * | 1985-07-11 | 1987-01-27 | ||
JPS6213862U (xx) * | 1985-07-11 | 1987-01-27 | ||
JPS6213860U (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 |
US3405170A (en) * | 1965-07-14 | 1968-10-08 | Universal Oil Prod Co | Process for the preparation of hydroxy naphthoic acids |
US3405169A (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 IT IT23977/75A patent/IT1038659B/it active
- 1975-06-03 DK DK248275A patent/DK248275A/da unknown
- 1975-06-03 US US05/583,295 patent/US4057576A/en not_active Expired - Lifetime
- 1975-06-04 BE BE157034A patent/BE829868A/xx unknown
- 1975-06-04 GB GB24108/75A patent/GB1507053A/en not_active Expired
- 1975-06-04 FR FR7517371A patent/FR2273792A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2426852A1 (de) | 1976-01-02 |
FR2273792B1 (xx) | 1978-10-13 |
IT1038659B (it) | 1979-11-30 |
BE829868A (fr) | 1975-12-04 |
US4057576A (en) | 1977-11-08 |
CH599096A5 (xx) | 1978-05-12 |
JPS514153A (en) | 1976-01-14 |
DE2426852B2 (de) | 1977-05-18 |
FR2273792A1 (fr) | 1976-01-02 |
NL7506445A (nl) | 1975-12-08 |
GB1507053A (en) | 1978-04-12 |
LU72627A1 (xx) | 1977-03-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DK248275A (da) | Fremgangsmade til udvinding af 2-hydroxynaphthalencarboxylsyrer fra omsetningsblandinger af alkalimetalsalte af 2-hydroxynaphthalen og carbondioxid | |
DK276A (da) | Benzoesyrer og derivater deraf samt fremgangsmade til fremstilling deraf | |
AT351591B (de) | Einrichtung zum fernerkennen von eine kodierte information tragenden gegenstaenden | |
SE414240B (sv) | Modell for inovning av aterupplivning medelst mun-mot-mun och mun-mot-nesa-metoden | |
SE7602807L (sv) | Videodefektdetektering | |
DK573275A (da) | Substituerede propanol (2)-derivater og nikotinsyreestere deraf samt fremgangsmade til fremstilling af disse forbindelser | |
JPS51122001A (en) | Method of carboxylation of organic base substance using carbon dioxide | |
NO139914C (no) | Fremgangsmaate til og sveiseverktoey for lysbuesveising | |
AT341593B (de) | Anordnung zur spielzeitverlangerung von video-kassettengeraten | |
AT340633B (de) | Einrichtung zur heizung bzw. kuhlung von raumen eines gebaudes | |
DK134636B (da) | Absorptionsenhed til absorption af kulsyre. | |
DK435576A (da) | Fremgangsmade til kimfjernelse fra vand | |
DK157677A (da) | N-substituerede carboxylsyreamider og fremgangsmade til fremstilling deraf | |
SE405414B (sv) | Gyroskopapparat | |
DK288375A (da) | Prostansyrederivater og fremgangsmade til fremstilling deraf | |
SE435526B (sv) | Forfarande for utvinning av antibiotikumet tienamycin | |
DK72577A (da) | Carboxylsyreestere fremgangsmade til fremstilling deraf og anvendelsen deraf | |
NO145157C (no) | Fremgangsmaate og innretning til rensing av avvann | |
FR2283208A1 (fr) | Appareil pour la gazeification du charbon | |
FR2285804A1 (fr) | Perfectionnements aux serres | |
DK434675A (da) | Fremgangsmade til fremstilling af 4-oxo-4h-pyrano-(3,2-c)-chinolin-2-carboxylsyrer og salte heraf | |
ATA183273A (de) | Verfahren zum filtern von rauch- oder staub- gasen | |
DK140875B (da) | Fremgangsmåde til fjernelse af svovldioxid og svovltrioxid fra en gas indeholdende disse. | |
TR18323A (tr) | Maleik asidin sulu coezeltilerinin dehidratasyon suretiyle maleik anhidrite doenuestueruelmesine mahsus usul | |
ZA754498B (en) | Apparatus for cooling water by natural or induced draught of atmospheric air |