[go: up one dir, main page]

ES439894A1 - Procedimiento para la preparacion de acido glicolico y sus polimeros. - Google Patents

Procedimiento para la preparacion de acido glicolico y sus polimeros.

Info

Publication number
ES439894A1
ES439894A1 ES439894A ES439894A ES439894A1 ES 439894 A1 ES439894 A1 ES 439894A1 ES 439894 A ES439894 A ES 439894A ES 439894 A ES439894 A ES 439894A ES 439894 A1 ES439894 A1 ES 439894A1
Authority
ES
Spain
Prior art keywords
polymers
procedure
preparation
glycolic acid
formaldehyde
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.)
Expired
Application number
ES439894A
Other languages
English (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.)
Montedison SpA
Original Assignee
Montedison SpA
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 Montedison SpA filed Critical Montedison SpA
Publication of ES439894A1 publication Critical patent/ES439894A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
    • C07C51/12—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Polyesters Or Polycarbonates (AREA)
ES439894A 1974-08-01 1975-07-31 Procedimiento para la preparacion de acido glicolico y sus polimeros. Expired ES439894A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT25846/74A IT1017804B (it) 1974-08-01 1974-08-01 Procedimento per la preparazione di acido glicolico e suoi polimeri

Publications (1)

Publication Number Publication Date
ES439894A1 true ES439894A1 (es) 1977-03-01

Family

ID=11217908

Family Applications (1)

Application Number Title Priority Date Filing Date
ES439894A Expired ES439894A1 (es) 1974-08-01 1975-07-31 Procedimiento para la preparacion de acido glicolico y sus polimeros.

Country Status (8)

Country Link
US (1) US4052452A (es)
JP (1) JPS5141327A (es)
BE (1) BE831976A (es)
DE (1) DE2534073A1 (es)
ES (1) ES439894A1 (es)
FR (1) FR2280624A1 (es)
IT (1) IT1017804B (es)
NL (1) NL7508960A (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128575A (en) * 1976-11-15 1978-12-05 Hoechst Aktiengesellschaft Process for the manufacture of glycolic acid or its esters
NL7712391A (nl) * 1976-11-15 1978-05-17 Hoechst Ag Werkwijze voor het bereiden van glycolzuur.
JPS5746934A (en) * 1980-09-03 1982-03-17 Agency Of Ind Science & Technol Preparation of glycolic acid and its ester
JPH0610252B2 (ja) * 1985-08-21 1994-02-09 和光純薬工業株式会社 重合体の製造法
US4824997A (en) * 1988-01-25 1989-04-25 Monsanto Company Method for preparation of alkyl glycolates
WO2003039744A1 (en) * 2001-11-08 2003-05-15 Mitsubishi Chemical Corporation Composite oxide catalyst and method for preparation thereof
US8466328B2 (en) 2010-08-18 2013-06-18 Eastman Chemical Company Method for recovery and recycle of ruthenium homogeneous catalysts
US8829248B2 (en) 2010-08-18 2014-09-09 Eastman Chemical Company Method for recovery and recycle of ruthenium homogeneous catalysts
US9227896B2 (en) 2010-08-18 2016-01-05 Eastman Chemical Company Process for the separation and purification of a mixed diol stream
US8709376B2 (en) 2010-09-23 2014-04-29 Eastman Chemical Company Process for recovering and recycling an acid catalyst
US8785686B2 (en) 2010-09-23 2014-07-22 Eastman Chemical Company Process for recovering and recycling an acid catalyst
US8927766B2 (en) 2012-03-27 2015-01-06 Eastman Chemical Company Hydrocarboxylation of methylene dipropionate in the presence of a propionic acid and a homogeneous catalyst
US8703999B2 (en) 2012-03-27 2014-04-22 Eastman Chemical Company Hydrocarboxylation of methylene dipropionate in the presence of propionic acid and a heterogeneous catalyst
US8829234B2 (en) 2012-03-27 2014-09-09 Eastman Chemical Company Hydrocarboxylation of formaldehyde in the presence of a higher order carboxylic acid and heterogeneous catalyst
US8765999B2 (en) 2012-03-27 2014-07-01 Eastman Chemical Company Hydrocarboxylation of formaldehyde in the presence of a higher order carboxylic acid and a homogeneous catalyst
US9040748B2 (en) 2012-06-08 2015-05-26 Eastman Chemical Company Hydrocarboxylation of aqueous formaldehyde using a dehydrating recycle stream to decrease water concentration
GB201505977D0 (en) 2015-04-08 2015-05-20 Johnson Matthey Davy Technologies Ltd Catalyst system and process
GB201505981D0 (en) 2015-04-08 2015-05-20 Johnson Matthey Davy Technologies Ltd Process
GB201615762D0 (en) * 2016-09-16 2016-11-02 Johnson Matthey Davy Technologies Ltd Process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152852A (en) * 1936-12-31 1939-04-04 Du Pont Process for manufacture of glycolic acid
US2443482A (en) * 1946-08-06 1948-06-15 Du Pont Continuous glycolic acid process
US3754028A (en) * 1972-08-21 1973-08-21 Chevron Res Glycolic acid production

Also Published As

Publication number Publication date
FR2280624B1 (es) 1977-12-09
FR2280624A1 (fr) 1976-02-27
BE831976A (fr) 1976-02-02
JPS5141327A (en) 1976-04-07
NL7508960A (nl) 1976-02-03
IT1017804B (it) 1977-08-10
US4052452A (en) 1977-10-04
DE2534073A1 (de) 1976-02-12

Similar Documents

Publication Publication Date Title
ES439894A1 (es) Procedimiento para la preparacion de acido glicolico y sus polimeros.
GB973338A (en) An improved catalytic process for the preparation of methacrylonitrile
GB1452258A (en) Production of hydroxyacetic acid
JPS5223589A (en) Catalyst for producing alpha,beta-unsaturaded carboxylic acid
ES315622A1 (es) Procedimiento para convertir cataliticamente etano en cloruro de vinilo.
ES444356A1 (es) Procedimiento para la preparacion de acido oxalico y sus es-teres alquilicos.
ES440048A1 (es) Un metodo para la preparacion de fenil-metil-carbinol.
ES412860A1 (es) Procedimiento para la produccion de oxido de propileno.
GB1430337A (en) Process for the manufacture of methacrylic acid and oxidation catalyst therefor
ES415244A1 (es) Procedimiento para la preparacion de 4-(-4-bifenilil)-1-bu-tanol.
ES391029A1 (es) Procedimiento para la obtencion de folmaldehido.
GB1292405A (en) Purification of ditrimethylolpropane
ES448524A1 (es) Un proceso para la produccion de acido m-benzoil-hidratropi-co.
ES380718A1 (es) Procedimiento para elaborar metanol.
ES406349A1 (es) Procedimiento para la oxidacion de olefinas.
KR890014427A (ko) 로듐-트리시클로헥실포스핀 촉매 시스템을 사용하는 수성 포름알데히드의 히드로포르밀화
ATA178474A (de) Kontinuierliches verfahren zur herstellung von aldehyden und alkoholen durch umsetzen von olefinen mit kohlenmonoxid und wasserstoff
ES392123A1 (es) Procedimiento para preparar oxidos de olefinas.
ES414740A1 (es) Un procedimiento con un dispositivo para la produccion de formaldehido por oxidacion de metanol.
ES489506A0 (es) Procedimiento para la obtencion de olefinas c2-c5.
JPS5430105A (en) Continuous production of tertiary butyl alcohol
KR840005064A (ko) 포름 알데히드의 제조방법
ES418439A1 (es) Un procedimiento para preparar uretanos.
ES455728A1 (es) Procedimiento para aumentar la selectividad en la obtencion de oxido de etileno.
KR890008066A (ko) 아디프산의 제조방법