WO2003066187A8 - Procede d'oligomerisation d'acide lactique - Google Patents

Procede d'oligomerisation d'acide lactique

Info

Publication number
WO2003066187A8
WO2003066187A8 PCT/FR2003/000305 FR0300305W WO03066187A8 WO 2003066187 A8 WO2003066187 A8 WO 2003066187A8 FR 0300305 W FR0300305 W FR 0300305W WO 03066187 A8 WO03066187 A8 WO 03066187A8
Authority
WO
WIPO (PCT)
Prior art keywords
lactic acid
acid composition
reaction medium
rich
eliminating
Prior art date
Application number
PCT/FR2003/000305
Other languages
English (en)
Other versions
WO2003066187A1 (fr
Inventor
Remy Teissier
Serge Tretjak
Elie Burtin
Original Assignee
Atofina
Remy Teissier
Serge Tretjak
Elie Burtin
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 Atofina, Remy Teissier, Serge Tretjak, Elie Burtin filed Critical Atofina
Priority to EP03717364A priority Critical patent/EP1476237A1/fr
Priority to BRPI0307487A priority patent/BRPI0307487A2/pt
Priority to AU2003222349A priority patent/AU2003222349A1/en
Priority to MXPA04007669A priority patent/MXPA04007669A/es
Priority to US10/503,375 priority patent/US20050080201A1/en
Priority to JP2003565607A priority patent/JP2005516999A/ja
Priority to CA002474720A priority patent/CA2474720A1/fr
Priority to KR10-2004-7012270A priority patent/KR20040089610A/ko
Publication of WO2003066187A1 publication Critical patent/WO2003066187A1/fr
Publication of WO2003066187A8 publication Critical patent/WO2003066187A8/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2455—Stationary reactors without moving elements inside provoking a loop type movement of the reactants
    • B01J19/2465—Stationary reactors without moving elements inside provoking a loop type movement of the reactants externally, i.e. the mixture leaving the vessel and subsequently re-entering it
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/009—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in combination with chemical reactions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/465—Preparation of carboxylic acid esters by oligomerisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
    • B01J2219/00094—Jackets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00182—Controlling or regulating processes controlling the level of reactants in the reactor vessel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

L'invention concerne un procédé continu d'obtention d'une composition oligomérique d'acide lactique riche en dimère et en trimère, à partir d'une composition d'acide lactique par élimination d'eau de ladite composition d'acide lactique, caractérisé en ce que l'on réalise cette élimination dans un réacteur adiabatique muni d'une boucle de recirculation, que l'on introduit en continu une composition d'acide lactique dans un milieu réactionnel pied de cuve en circulation, ledit milieu réactionnel étant porté à une température allant de 120°C à 180°C et que l'on élimine l'eau sous forme vapeur.
PCT/FR2003/000305 2002-02-08 2003-01-31 Procede d'oligomerisation d'acide lactique WO2003066187A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP03717364A EP1476237A1 (fr) 2002-02-08 2003-01-31 Procede d oligomerisation d acide lactique
BRPI0307487A BRPI0307487A2 (pt) 2002-02-08 2003-01-31 processo de oligomerização de ácido láctico
AU2003222349A AU2003222349A1 (en) 2002-02-08 2003-01-31 Method for lactic acid oligomerization
MXPA04007669A MXPA04007669A (es) 2002-02-08 2003-01-31 Procedimiento de oligomerizacion de acido lactico.
US10/503,375 US20050080201A1 (en) 2002-02-08 2003-01-31 Method for lactic acid oligomerization
JP2003565607A JP2005516999A (ja) 2002-02-08 2003-01-31 乳酸のオリゴマー化方法
CA002474720A CA2474720A1 (fr) 2002-02-08 2003-01-31 Procede d'oligomerisation d'acide lactique
KR10-2004-7012270A KR20040089610A (ko) 2002-02-08 2003-01-31 젖산 올리고머화를 위한 방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0201549A FR2835832B1 (fr) 2002-02-08 2002-02-08 Procede d'oligomerisation d'acide lactique
FR02/01549 2002-02-08

Publications (2)

Publication Number Publication Date
WO2003066187A1 WO2003066187A1 (fr) 2003-08-14
WO2003066187A8 true WO2003066187A8 (fr) 2004-09-23

Family

ID=27620016

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2003/000305 WO2003066187A1 (fr) 2002-02-08 2003-01-31 Procede d'oligomerisation d'acide lactique

Country Status (11)

Country Link
US (1) US20050080201A1 (fr)
EP (1) EP1476237A1 (fr)
JP (1) JP2005516999A (fr)
KR (1) KR20040089610A (fr)
CN (2) CN1846825A (fr)
AU (1) AU2003222349A1 (fr)
BR (1) BRPI0307487A2 (fr)
CA (1) CA2474720A1 (fr)
FR (1) FR2835832B1 (fr)
MX (1) MXPA04007669A (fr)
WO (1) WO2003066187A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009293001A (ja) * 2008-06-02 2009-12-17 Lactive Japan:Kk 乳酸による植物からの脂溶性色素の抽出と乳酸を含む抽出液の製造法およびこの抽出液を含有する飲料ならびに食品ならびに医薬品ならびに化粧品
DE102009031053A1 (de) * 2009-06-30 2011-01-13 Clariant International Ltd. Kontinuierliches Verfahren zur Herstellung von Estern aliphatischer Carbonsäuren
ES2436509T3 (es) * 2009-07-16 2014-01-02 Purac Biochem Bv Composición líquida de ácido láctico y método para su preparación
CN106220501A (zh) * 2016-08-25 2016-12-14 江苏九天高科技股份有限公司 一种蒸汽渗透脱水技术用于合成乳酸乙酯的方法与装置
CN108219120B (zh) * 2017-12-28 2020-11-03 河南金丹乳酸科技股份有限公司 寡聚d-乳酸生产工艺
CN114712877B (zh) * 2022-04-15 2023-06-06 南京佳华科技股份有限公司 一种采用热耦合技术制备电子级气体的方法及设备
WO2024110978A1 (fr) * 2022-11-23 2024-05-30 Praj Industries Limited Oligomérisation d'acides alpha-hydroxy

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE826749C (de) * 1950-02-05 1952-01-03 Teerverwertung M B H Ges Adiabatische Kolonne
US4019866A (en) * 1973-03-05 1977-04-26 Du Pont Of Canada Limited Recirculating reaction apparatus for continuous preparation of a polyamide
CA1015894A (en) * 1973-03-05 1977-08-16 Kalev Pugi Preparation of polyamides by continuous polymerization
TW227561B (fr) * 1992-03-13 1994-08-01 Du Pont
FR2743080B1 (fr) * 1995-12-27 1998-02-06 Inst Francais Du Petrole Procede de reduction selective de la teneur en benzene et en composes insatures legers d'une coupe d'hydrocarbures
JP3301311B2 (ja) * 1996-05-24 2002-07-15 株式会社神戸製鋼所 ２−ヒドロキシカルボン酸オリゴマーの連続製造方法
FR2802923B1 (fr) * 1999-12-28 2002-03-08 Roquette Freres Procede de preparation d'une composition d'ester d'acide lactique et son utilisation en tant que solvant

Also Published As

Publication number Publication date
CN1630545A (zh) 2005-06-22
CA2474720A1 (fr) 2003-08-14
WO2003066187A1 (fr) 2003-08-14
CN1846825A (zh) 2006-10-18
BRPI0307487A2 (pt) 2016-11-08
FR2835832A1 (fr) 2003-08-15
AU2003222349A1 (en) 2003-09-02
JP2005516999A (ja) 2005-06-09
US20050080201A1 (en) 2005-04-14
FR2835832B1 (fr) 2004-03-19
MXPA04007669A (es) 2005-11-17
EP1476237A1 (fr) 2004-11-17
KR20040089610A (ko) 2004-10-21

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