DE60007895D1 - Verfahren zum reinigen von milchsäureestern - Google Patents

Verfahren zum reinigen von milchsäureestern

Info

Publication number
DE60007895D1
DE60007895D1 DE60007895T DE60007895T DE60007895D1 DE 60007895 D1 DE60007895 D1 DE 60007895D1 DE 60007895 T DE60007895 T DE 60007895T DE 60007895 T DE60007895 T DE 60007895T DE 60007895 D1 DE60007895 D1 DE 60007895D1
Authority
DE
Germany
Prior art keywords
lactic acid
acid esters
sub
cleaning
ester
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 - Lifetime
Application number
DE60007895T
Other languages
English (en)
Other versions
DE60007895T2 (de
Inventor
Krieken Jan Van
Vries Jeichinus De
Symone Kok
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.)
Purac Biochem BV
Original Assignee
Purac Biochem BV
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 Purac Biochem BV filed Critical Purac Biochem BV
Publication of DE60007895D1 publication Critical patent/DE60007895D1/de
Application granted granted Critical
Publication of DE60007895T2 publication Critical patent/DE60007895T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
DE60007895T 1999-12-16 2000-11-24 Verfahren zum reinigen von milchsäureestern Expired - Lifetime DE60007895T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1013870 1999-12-16
NL1013870A NL1013870C2 (nl) 1999-12-16 1999-12-16 Werkwijze voor het zuiveren van melkzure esters.
PCT/NL2000/000860 WO2001044157A1 (en) 1999-12-16 2000-11-24 Method of purifying lactic acid esters

Publications (2)

Publication Number Publication Date
DE60007895D1 true DE60007895D1 (de) 2004-02-26
DE60007895T2 DE60007895T2 (de) 2004-06-09

Family

ID=19770449

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60007895T Expired - Lifetime DE60007895T2 (de) 1999-12-16 2000-11-24 Verfahren zum reinigen von milchsäureestern

Country Status (13)

Country Link
US (1) US6967257B1 (de)
EP (1) EP1237841B1 (de)
JP (1) JP5065563B2 (de)
CN (1) CN1184188C (de)
AT (1) ATE258158T1 (de)
AU (1) AU2557101A (de)
BR (1) BR0016429B1 (de)
DE (1) DE60007895T2 (de)
DK (1) DK1237841T3 (de)
ES (1) ES2211661T3 (de)
NL (1) NL1013870C2 (de)
PT (1) PT1237841E (de)
WO (1) WO2001044157A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5000814B2 (ja) * 2001-06-05 2012-08-15 東邦化学工業株式会社 乳酸エチル中の不純物の除去方法
BE1019021A3 (fr) * 2009-07-01 2012-01-10 Galactic Sa Procede de preparation de lactate d'alkyle c1-c4 de grande purete par putrification des lactates d'alkyle c1-c4 bruts.
BE1019857A3 (fr) * 2011-03-03 2013-01-08 Galactic Sa Procede de separation des deux isomeres de l'acide lactique et utilisation des isomeres ainsi recuperes.
NL2028900B1 (en) 2021-08-02 2023-02-17 Arapaha B V A method of closed loop recycling of polylactic acid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3433400A1 (de) * 1984-09-12 1986-03-20 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von milchsaeureestern
JPS6226249A (ja) * 1985-07-26 1987-02-04 Daicel Chem Ind Ltd 光学活性乳酸エステルの精製方法
US5264592A (en) * 1992-09-08 1993-11-23 Camelot Technologies Inc. Lactide melt recrystallization
CA2115472C (en) * 1993-02-17 2002-08-13 William George O'brien Melt crystallization purification of lactides
JPH0940663A (ja) * 1995-08-01 1997-02-10 Toyobo Co Ltd α−オキシ酸の分子間環状ジエステルの精製方法
JP4105797B2 (ja) * 1998-05-11 2008-06-25 三菱レイヨン株式会社 光学活性α−トリフルオロメチル乳酸の精製方法

Also Published As

Publication number Publication date
CN1411433A (zh) 2003-04-16
WO2001044157A1 (en) 2001-06-21
JP5065563B2 (ja) 2012-11-07
CN1184188C (zh) 2005-01-12
EP1237841A1 (de) 2002-09-11
EP1237841B1 (de) 2004-01-21
BR0016429A (pt) 2002-08-20
AU2557101A (en) 2001-06-25
US6967257B1 (en) 2005-11-22
ES2211661T3 (es) 2004-07-16
BR0016429B1 (pt) 2010-08-24
DE60007895T2 (de) 2004-06-09
ATE258158T1 (de) 2004-02-15
NL1013870C2 (nl) 2001-06-21
DK1237841T3 (da) 2004-02-23
JP2003517031A (ja) 2003-05-20
PT1237841E (pt) 2004-04-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition