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 carbondioxid

Info

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
Application number
DK248275A
Other languages
Danish (da)
English (en)
Inventor
W Bachmann
C Gnabs
K Janecka
E Mundlos
T Papenfuhs
G Waese
Original Assignee
Hoechst Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19742426852 external-priority patent/DE2426852C3/de
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of DK248275A publication Critical patent/DK248275A/da

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42Separation; Purification; Stabilisation; Use of additives
    • C07C51/43Separation; 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)
DK248275A 1974-06-04 1975-06-03 Fremgangsmade til udvinding af 2-hydroxynaphthalencarboxylsyrer fra omsetningsblandinger af alkalimetalsalte af 2-hydroxynaphthalen og carbondioxid DK248275A (da)

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 (it)
JP (1) JPS514153A (it)
BE (1) BE829868A (it)
CH (1) CH599096A5 (it)
DK (1) DK248275A (it)
FR (1) FR2273792A1 (it)
GB (1) GB1507053A (it)
IT (1) IT1038659B (it)
LU (1) LU72627A1 (it)
NL (1) NL7506445A (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
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 (it) * 1985-06-11 1986-12-19
JPS61202375U (it) * 1985-06-11 1986-12-19
JPS61202376U (it) * 1985-06-11 1986-12-19
JPS62557U (it) * 1985-06-17 1987-01-06
JPS6213861U (it) * 1985-07-11 1987-01-27
JPS6213860U (it) * 1985-07-11 1987-01-27
JPS6213862U (it) * 1985-07-11 1987-01-27
JPS6213859U (it) * 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPS514153A (en) 1976-01-14
NL7506445A (nl) 1975-12-08
FR2273792B1 (it) 1978-10-13
LU72627A1 (it) 1977-03-03
CH599096A5 (it) 1978-05-12
BE829868A (fr) 1975-12-04
IT1038659B (it) 1979-11-30
FR2273792A1 (fr) 1976-01-02
GB1507053A (en) 1978-04-12
US4057576A (en) 1977-11-08
DE2426852B2 (de) 1977-05-18
DE2426852A1 (de) 1976-01-02

Similar Documents

Publication Publication Date Title
DK248275A (da) Fremgangsmade til udvinding af 2-hydroxynaphthalencarboxylsyrer fra omsetningsblandinger af alkalimetalsalte af 2-hydroxynaphthalen og carbondioxid
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
BG26201A3 (bg) Метод за получаване на 7-бета-амино-3-цефем-3-ол- 4-карбонови киселини
SE7602807L (sv) Videodefektdetektering
DK573275A (da) Substituerede propanol (2)-derivater og nikotinsyreestere deraf samt fremgangsmade til fremstilling af disse forbindelser
DK324078A (da) N-carloxyalkan-aminoalkan-polyhosphonsyrer og alkalimetalsalte deraf samt fremgangsmaade til fremstilling deraf
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
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.
DK140315B (da) Fremgangsmåde til fremstilling af citronsyre og isocitronsyre.
TR18323A (tr) Maleik asidin sulu coezeltilerinin dehidratasyon suretiyle maleik anhidrite doenuestueruelmesine mahsus usul