FR2370715A1 - GLYCOLIC ACID PREPARATION PROCESS - Google Patents

GLYCOLIC ACID PREPARATION PROCESS

Info

Publication number
FR2370715A1
FR2370715A1 FR7734233A FR7734233A FR2370715A1 FR 2370715 A1 FR2370715 A1 FR 2370715A1 FR 7734233 A FR7734233 A FR 7734233A FR 7734233 A FR7734233 A FR 7734233A FR 2370715 A1 FR2370715 A1 FR 2370715A1
Authority
FR
France
Prior art keywords
glycolic acid
preparation process
acid preparation
trioxane
paraformaldehyde
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7734233A
Other languages
French (fr)
Other versions
FR2370715B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
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 DE19762652003 external-priority patent/DE2652003A1/en
Priority claimed from DE19772741505 external-priority patent/DE2741505A1/en
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of FR2370715A1 publication Critical patent/FR2370715A1/en
Application granted granted Critical
Publication of FR2370715B1 publication Critical patent/FR2370715B1/fr
Granted legal-status Critical Current

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
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/367—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by introduction of functional groups containing oxygen only in singly bound form

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)

Abstract

Procédé de préparation d'acide glycolique. On fait réagir du paraformaldéhyde ou du trioxanne ou un mélange des deux, en phase liquide, à une température de 70 à 200 degrés C, avec de l'acide formique en présence de catalyseurs fortement acides.Process for preparing glycolic acid. Paraformaldehyde or trioxane or a mixture of the two is reacted, in the liquid phase, at a temperature of 70 to 200 degrees C, with formic acid in the presence of strongly acidic catalysts.

FR7734233A 1976-11-15 1977-11-15 GLYCOLIC ACID PREPARATION PROCESS Granted FR2370715A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19762652003 DE2652003A1 (en) 1976-11-15 1976-11-15 Glycolic acid prodn. from formaldehyde precursor and formic acid - in liq. phase over strong acid catalyst, useful e.g. in textile processing, as disinfectant etc. (BE 16.5.78)
DE19772741505 DE2741505A1 (en) 1977-09-15 1977-09-15 Glycolic acid from para-formaldehyde or trioxane and formic acid - effected in liq. phase, avoiding high pressure and use of carbon mon:oxide

Publications (2)

Publication Number Publication Date
FR2370715A1 true FR2370715A1 (en) 1978-06-09
FR2370715B1 FR2370715B1 (en) 1982-04-16

Family

ID=25771148

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7734233A Granted FR2370715A1 (en) 1976-11-15 1977-11-15 GLYCOLIC ACID PREPARATION PROCESS

Country Status (6)

Country Link
JP (1) JPS5368722A (en)
CA (1) CA1110655A (en)
FR (1) FR2370715A1 (en)
GB (1) GB1594717A (en)
IT (1) IT1088882B (en)
NL (1) NL7712391A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB508383A (en) * 1936-12-31 1939-06-29 Du Pont Improvements in or relating to the manufacture of glycollic acid
GB550837A (en) * 1940-07-24 1943-01-27 Du Pont Process for the preparation of condensation products of hydroxyacetic acids
US2341258A (en) * 1942-03-25 1944-02-08 Du Pont Process for the preparation of flake hydroxyacetic acid
US3754028A (en) * 1972-08-21 1973-08-21 Chevron Res Glycolic acid production
FR2280624A1 (en) * 1974-08-01 1976-02-27 Montedison Spa PROCESS FOR PREPARING GLYCOLIC ACID AND ITS POLYMERS

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB508383A (en) * 1936-12-31 1939-06-29 Du Pont Improvements in or relating to the manufacture of glycollic acid
GB550837A (en) * 1940-07-24 1943-01-27 Du Pont Process for the preparation of condensation products of hydroxyacetic acids
US2341258A (en) * 1942-03-25 1944-02-08 Du Pont Process for the preparation of flake hydroxyacetic acid
US3754028A (en) * 1972-08-21 1973-08-21 Chevron Res Glycolic acid production
FR2280624A1 (en) * 1974-08-01 1976-02-27 Montedison Spa PROCESS FOR PREPARING GLYCOLIC ACID AND ITS POLYMERS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/65 *

Also Published As

Publication number Publication date
CA1110655A (en) 1981-10-13
GB1594717A (en) 1981-08-05
JPS5368722A (en) 1978-06-19
IT1088882B (en) 1985-06-10
NL7712391A (en) 1978-05-17
FR2370715B1 (en) 1982-04-16

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Legal Events

Date Code Title Description
ST Notification of lapse