MX361328B - Procedimiento para la produccion de diesteres ciclicos, en particular dilactida. - Google Patents

Procedimiento para la produccion de diesteres ciclicos, en particular dilactida.

Info

Publication number
MX361328B
MX361328B MX2015005066A MX2015005066A MX361328B MX 361328 B MX361328 B MX 361328B MX 2015005066 A MX2015005066 A MX 2015005066A MX 2015005066 A MX2015005066 A MX 2015005066A MX 361328 B MX361328 B MX 361328B
Authority
MX
Mexico
Prior art keywords
dilactide
carboxylic acids
preparing cyclic
cyclic diesters
esters
Prior art date
Application number
MX2015005066A
Other languages
English (en)
Other versions
MX2015005066A (es
Inventor
Paetz Caspar
Muehlbauer Udo
Driouch Habib
Original Assignee
Uhde Inventa Fischer 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 Uhde Inventa Fischer Gmbh filed Critical Uhde Inventa Fischer Gmbh
Publication of MX2015005066A publication Critical patent/MX2015005066A/es
Publication of MX361328B publication Critical patent/MX361328B/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/10—1,4-Dioxanes; Hydrogenated 1,4-dioxanes
    • C07D319/12—1,4-Dioxanes; Hydrogenated 1,4-dioxanes not condensed with other rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)

Abstract

La presente invención se refiere a un procedimiento para la producción de ésteres cíclicos de ácido carboxílico, en particular lactonas intramoleculares, tales como, por ejemplo, dilactida, efectuándose la producción de estos ésteres cíclicos a partir de ácidos carboxílicos oligoméricos mediante ciclado de despolimerización. Durante esta reacción, un producto de condensación de estos ácidos carboxílicos oligoméricos se produce como subproducto, es decir una mezcla de ácidos carboxílicos oligoméricos de peso molecular más alto que se hidrolizan en una etapa adicional y, por tanto, se recuperan. Este hidrolizado se puede añadir de nuevo a la despolimerización ciclante que se lleva a cabo en la primera etapa.
MX2015005066A 2012-10-26 2013-10-23 Procedimiento para la produccion de diesteres ciclicos, en particular dilactida. MX361328B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12190199.5A EP2725019B1 (de) 2012-10-26 2012-10-26 Verfahren zur Herstellung cyclischer Diester, insbesondere Dilactid
PCT/EP2013/072188 WO2014064160A1 (de) 2012-10-26 2013-10-23 Verfahren zur herstellung cyclischer diester, insbesondere dilactid

Publications (2)

Publication Number Publication Date
MX2015005066A MX2015005066A (es) 2015-07-17
MX361328B true MX361328B (es) 2018-11-16

Family

ID=47088724

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015005066A MX361328B (es) 2012-10-26 2013-10-23 Procedimiento para la produccion de diesteres ciclicos, en particular dilactida.

Country Status (11)

Country Link
US (1) US9428484B2 (es)
EP (1) EP2725019B1 (es)
KR (1) KR101892580B1 (es)
CN (1) CN104781248B (es)
BR (1) BR112015009181B1 (es)
EA (1) EA027033B1 (es)
ES (1) ES2536294T3 (es)
IN (1) IN2015DN02895A (es)
MX (1) MX361328B (es)
WO (1) WO2014064160A1 (es)
ZA (1) ZA201501651B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2840390A1 (de) * 2013-08-19 2015-02-25 Mettler-Toledo AG Coulometrische Titrationszelle
EP3130154B1 (en) * 2014-04-11 2019-03-27 Telefonaktiebolaget LM Ericsson (publ) Controlling time division duplex operation
EP3130911A1 (en) * 2015-08-10 2017-02-15 PURAC Biochem BV Quantification method of meso-lactide in a lactide-containing composition
EP4613742A1 (en) * 2024-03-07 2025-09-10 Sulzer Management AG A method and plant for preparing a crude lactide composition using a lactide synthesis reactor comprising a distillation column and a loop reactor

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526554A (en) 1947-07-28 1950-10-17 Goodrich Co B F Preparation of beta-hydroxy carboxylic acid esters by alcoholysis of linear polyesters derived from beta-lactones
US5229528A (en) 1991-11-22 1993-07-20 E. I. Du Pont De Nemours And Company Rapid depolymerization of polyhydroxy acids
NZ249033A (en) 1992-01-24 1996-05-28 Cargill Inc Preparation of a polylactide from a lactide which has been purified by distillation
US5420304A (en) * 1992-03-19 1995-05-30 Biopak Technology, Ltd. Method to produce cyclic esters
EP0628533A1 (en) 1993-06-07 1994-12-14 E.I. Du Pont De Nemours And Company Recovery of hydroxy acids from trash
JPH07165753A (ja) 1993-12-08 1995-06-27 Musashino Kagaku Kenkyusho:Kk ラクチドの精製方法
JP3503127B2 (ja) 1995-09-14 2004-03-02 トヨタ自動車株式会社 高分子量ポリ乳酸からのラクチド回収方法
US6229046B1 (en) 1997-10-14 2001-05-08 Cargill, Incorported Lactic acid processing methods arrangements and products
DE10020898B4 (de) 2000-04-20 2004-02-05 Inventa-Fischer Gmbh Verfahren zur Herstellung von Polymilchsäure und Vorrichtung hierzu
PL210466B1 (pl) 2003-12-10 2012-01-31 Tate & Lyle Plc Sposób oczyszczania laktydu
CN100475808C (zh) 2004-04-30 2009-04-08 国立大学法人九州工业大学 从聚乳酸或其衍生物回收交酯的方法
EP2072508A1 (fr) 2007-12-19 2009-06-24 Galactic S.A. Procédé d'obtention de lactide
JP2009249508A (ja) 2008-04-07 2009-10-29 Kyushu Institute Of Technology ポリ乳酸製品の効率的オリゴマー化方法
WO2010011894A1 (en) 2008-07-24 2010-01-28 The Board Of Regents Of The University Of Texas System Vh4 codon signature for multiple sclerosis
CN101434594B (zh) * 2008-12-19 2012-05-02 河北科技大学 混合溶剂法制备丙交酯的方法
BE1018716A3 (fr) 2009-04-14 2011-07-05 Galactic Sa Recyclage chimique du pla par hydrolyse.
BE1019608A3 (fr) 2009-04-14 2012-09-04 Galactic Sa Recyclage chimique du pla par alcoolyse.
BE1018882A3 (fr) 2009-09-10 2011-10-04 Galactic Sa Procede de recyclage stereospecifique d'un melange de polymeres a base de pla.
ES2524988T3 (es) * 2010-02-26 2014-12-16 Council Of Scientific & Industrial Research Procedimiento mejorado para la preparación de L-lactida de rendimiento químico y pureza óptica altos
CN101906041B (zh) * 2010-08-23 2013-07-10 孝感市易生新材料有限公司 二步法生产高含量和高光学纯度乳酸戊酯的方法

Also Published As

Publication number Publication date
EP2725019B1 (de) 2015-04-08
US20150266849A1 (en) 2015-09-24
ES2536294T3 (es) 2015-05-22
WO2014064160A1 (de) 2014-05-01
US9428484B2 (en) 2016-08-30
EA201590366A1 (ru) 2015-08-31
BR112015009181A2 (pt) 2017-07-04
KR20150074159A (ko) 2015-07-01
BR112015009181B1 (pt) 2020-10-27
MX2015005066A (es) 2015-07-17
EP2725019A1 (de) 2014-04-30
CN104781248A (zh) 2015-07-15
KR101892580B1 (ko) 2018-08-29
IN2015DN02895A (es) 2015-09-11
CN104781248B (zh) 2017-09-12
EA027033B1 (ru) 2017-06-30
ZA201501651B (en) 2015-12-23

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