DK0401533T3 - Fremgangsmåde til kontinuert fremstilling af glyoxylsyre - Google Patents

Fremgangsmåde til kontinuert fremstilling af glyoxylsyre

Info

Publication number
DK0401533T3
DK0401533T3 DK90108762.7T DK90108762T DK0401533T3 DK 0401533 T3 DK0401533 T3 DK 0401533T3 DK 90108762 T DK90108762 T DK 90108762T DK 0401533 T3 DK0401533 T3 DK 0401533T3
Authority
DK
Denmark
Prior art keywords
glyoxylic acid
continuous preparation
acid ester
ester hemiacetals
hemiacetals
Prior art date
Application number
DK90108762.7T
Other languages
English (en)
Inventor
Alexander Dipl-Ing Sajtos
Lorenz Dr Farnleitner
Engelbert Ing Kloimstein
Karl Hoellinger
Original Assignee
Chemie Linz Gmbh
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
Application filed by Chemie Linz Gmbh filed Critical Chemie Linz Gmbh
Application granted granted Critical
Publication of DK0401533T3 publication Critical patent/DK0401533T3/da

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
    • C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones

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)
DK90108762.7T 1989-06-05 1990-05-10 Fremgangsmåde til kontinuert fremstilling af glyoxylsyre DK0401533T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1357/89A AT392638B (de) 1989-06-05 1989-06-05 Verfahren zur kontinuierlichen herstellung einer konzentrierten waessrigen loesung von glyoxylsaeure

Publications (1)

Publication Number Publication Date
DK0401533T3 true DK0401533T3 (da) 1993-08-09

Family

ID=3512144

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90108762.7T DK0401533T3 (da) 1989-06-05 1990-05-10 Fremgangsmåde til kontinuert fremstilling af glyoxylsyre

Country Status (10)

Country Link
US (1) US5068417A (da)
EP (1) EP0401533B1 (da)
JP (1) JP2898354B2 (da)
AT (2) AT392638B (da)
CA (1) CA2017583C (da)
DE (2) DE3920349A1 (da)
DK (1) DK0401533T3 (da)
ES (1) ES2057253T3 (da)
GR (1) GR3009562T3 (da)
HU (1) HU204760B (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926815A1 (fr) * 2008-01-25 2009-07-31 Clariant Specialty Fine Chem Procede de separation d'acide glyoxylique a partir d'un milieu reactionel aqueux contenant de l'acide glyoxylique et de l'acide chlorhydrique.
EA035462B1 (ru) 2015-10-16 2020-06-19 Акцо Нобель Кемикалз Интернэшнл Б.В. Простые эфиры целлюлозы с временными поперечно сшитыми связями, способ их получения и их применение
CN112898148A (zh) * 2021-04-14 2021-06-04 天津市新天进科技开发有限公司 乙醛酸精制的工艺方法和装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2081355A (en) * 1933-05-04 1937-05-25 Ig Farbenindustrie Ag Process of preparing glyoxylic acid
US2842576A (en) * 1952-01-03 1958-07-08 British Petroleum Co Production of acetals
US3014963A (en) * 1957-11-04 1961-12-26 Merck & Co Inc Process of producing mevalonic acid and its intermediates
US3032491A (en) * 1958-07-23 1962-05-01 Polaroid Corp Irradiation of cyclohexadienones
US3705922A (en) * 1970-08-11 1972-12-12 United States Steel Corp Process for the preparation of glyoxylic acid methyl hemiacetal
DE2501743C2 (de) * 1975-01-17 1982-07-15 Haarmann & Reimer Gmbh, 3450 Holzminden Verfahren zur Abtrennung von Glyoxylsäure aus wässrigen, Glyoxylsäure und Glyoxal enthaltenden Gemischen
DE2904775C2 (de) * 1979-02-08 1985-03-21 Hoechst Ag, 6230 Frankfurt Verfahren zur Herstellung von Glyoxylsäureestern
DE3224795A1 (de) * 1982-07-02 1984-01-05 Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München Verfahren zur herstellung von glyoxylsaeure und glyoxylsaeurederivaten
AT376197B (de) * 1982-07-06 1984-10-25 Chemie Linz Ag Verfahren zur herstellung von glyoxylsaeure und von glyoxylsaeurealkylesterhalbacetalen
JPH0830026B2 (ja) * 1987-05-27 1996-03-27 三井東圧化学株式会社 グリオキシル酸類の製造法
US4867849A (en) * 1988-07-25 1989-09-19 Cova Dario R Purification of alkyl glyoxylate

Also Published As

Publication number Publication date
GR3009562T3 (da) 1994-02-28
DE3920349A1 (de) 1991-01-10
HU204760B (en) 1992-02-28
ATE91123T1 (de) 1993-07-15
JPH0320239A (ja) 1991-01-29
AT392638B (de) 1991-05-10
EP0401533B1 (de) 1993-06-30
EP0401533A1 (de) 1990-12-12
CA2017583A1 (en) 1990-12-05
ES2057253T3 (es) 1994-10-16
CA2017583C (en) 2001-07-10
US5068417A (en) 1991-11-26
HUT54966A (en) 1991-04-29
HU903301D0 (en) 1990-10-28
ATA135789A (de) 1990-10-15
JP2898354B2 (ja) 1999-05-31
DE59001880D1 (de) 1993-08-05

Similar Documents

Publication Publication Date Title
FI890388A0 (fi) Menetelmä (S)-ketoprofeenin valmistamiseksi
DK0401533T3 (da) Fremgangsmåde til kontinuert fremstilling af glyoxylsyre
ATE11525T1 (de) Verfahren zur herstellung von betahydroxybutans|ure.
DE68901011D1 (de) Verfahren zur industrieproduktion der wasserloesungen von glyoxylsaeure.
DK467681A (da) Phosphonohydroxyacetonitril og dens salte fremgangsmaade til dens fremstilling og dens anvendelse som mellemprodukt til frestilling af phosphonohydroxyeddikesyre
ATE12221T1 (de) Verfahren zur hestellung von einem glutaraldehydvorlaeufer.
ATE1778T1 (de) Verfahren zur herstellung von r.s. 5-phydroxyphenyl-2,4-imidazolidindion oder r.s. 5-p- hydroxyphenylhydantoin.
DK0401532T3 (da) Fremgangsmåde til fremstilling af lagerstabil lævulinsyre
DK158141C (da) Fremgangsmaade til fremstilling af en anionbytter samt anvendelse heraf
BR8100243A (pt) Processo para a preparacao de acido p-hidroxifenilacetico
ATE8986T1 (de) Verfahren zur herstellung von formaldehyd.
DE58901557D1 (de) Verfahren zur herstellung von 1,2-disulfon-verbindungen.
SU1085974A1 (ru) Способ получени @ -глутаминовой кислоты
JPS5427507A (en) Preparation of tertiary butyl alcohol
SU1667358A1 (ru) Способ получения п-нитротолуол-о-сульфокислоты
JPS5379816A (en) Urea treatment of aliphatic dicarbosylic acid-contg.
DE69206362D1 (de) Verfahren zur Herstellung von carboxylierten 2-Allylphenolen.
FR1458808A (fr) Procédé de production de résines du type phénol-acroléine en présence ou absence de formaldéhyde et en utilisant un acide sulfonique comme catalyseur
ATE121731T1 (de) Verfahren zur herstellung von irone.
JPS53144504A (en) Purification of carboxylic acid ester
EA199800213A1 (ru) Способ получения азометинов и альфа-галогенацетанилидов
SU1116692A1 (ru) Способ получения 2,3,5-триметил-1,4-бензохинона
JPS5271863A (en) Process for treating waste liquor of wood by membrane method
AR240948A2 (es) Un proceso para preparar l-ramnosa, comprende extractar un alga marina que pertenece a la familia monostromaceae, u1-vales, con un solvente soluble en agua bajo calentamiento; e hidrolizar el extracto obtenido que contiene sulfato de ramnano, seguido por
KR920006324A (ko) 5-(4-히드록시페닐) 히단토인의 제조방법

Legal Events

Date Code Title Description
AHB Application shelved due to non-payment