DK0549698T3 - Katalytisk fremstilling af lactid direkte ud fra mælkesyre - Google Patents

Katalytisk fremstilling af lactid direkte ud fra mælkesyre

Info

Publication number
DK0549698T3
DK0549698T3 DK91917419.3T DK91917419T DK0549698T3 DK 0549698 T3 DK0549698 T3 DK 0549698T3 DK 91917419 T DK91917419 T DK 91917419T DK 0549698 T3 DK0549698 T3 DK 0549698T3
Authority
DK
Denmark
Prior art keywords
lactic acid
lactide
aqueous lactic
unreacted
feed
Prior art date
Application number
DK91917419.3T
Other languages
English (en)
Inventor
Richard A Markle
Richard G Sinclair
Herman P Benecke
Original Assignee
Biopak Technology Ltd
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 Biopak Technology Ltd filed Critical Biopak Technology Ltd
Application granted granted Critical
Publication of DK0549698T3 publication Critical patent/DK0549698T3/da

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
    • 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
    • B01J2219/19—Details relating to the geometry of the reactor
    • B01J2219/194—Details relating to the geometry of the reactor round
    • B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
    • B01J2219/1942—Details relating to the geometry of the reactor round circular or disk-shaped spherical

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
DK91917419.3T 1990-09-18 1991-09-18 Katalytisk fremstilling af lactid direkte ud fra mælkesyre DK0549698T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/584,466 US5332839A (en) 1990-09-18 1990-09-18 Catalytic production of lactide directly from lactic acid

Publications (1)

Publication Number Publication Date
DK0549698T3 true DK0549698T3 (da) 1995-03-27

Family

ID=24337436

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91917419.3T DK0549698T3 (da) 1990-09-18 1991-09-18 Katalytisk fremstilling af lactid direkte ud fra mælkesyre

Country Status (22)

Country Link
US (1) US5332839A (da)
EP (1) EP0549698B1 (da)
JP (1) JP3236289B2 (da)
KR (1) KR0171431B1 (da)
CN (1) CN1061223A (da)
AT (1) ATE113944T1 (da)
AU (1) AU652963B2 (da)
BR (1) BR9106854A (da)
CA (1) CA2091689A1 (da)
DE (1) DE69105144T2 (da)
DK (1) DK0549698T3 (da)
ES (1) ES2063527T3 (da)
FI (1) FI95696C (da)
HK (1) HK175695A (da)
IE (1) IE63141B1 (da)
IL (1) IL99520A0 (da)
MX (1) MX9101130A (da)
MY (1) MY106760A (da)
NZ (1) NZ239825A (da)
PT (1) PT98999A (da)
WO (1) WO1992005168A1 (da)
ZA (1) ZA917452B (da)

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US5319107A (en) * 1990-09-18 1994-06-07 Biopak Technology, Ltd. Method to produce cyclic esters
US5326887A (en) * 1991-02-27 1994-07-05 E. I. Du Pont De Nemours And Company Process for the preparation of 1,4-dioxane-2,5-diones
US6326458B1 (en) 1992-01-24 2001-12-04 Cargill, Inc. Continuous process for the manufacture of lactide and lactide polymers
US5247059A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for the manufacture of a purified lactide from esters of lactic acid
US5247058A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5142023A (en) * 1992-01-24 1992-08-25 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5258488A (en) * 1992-01-24 1993-11-02 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US6005067A (en) 1992-01-24 1999-12-21 Cargill Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US6005068A (en) 1992-10-02 1999-12-21 Cargill Incorporated Melt-stable amorphous lactide polymer film and process for manufacture thereof
US5338822A (en) * 1992-10-02 1994-08-16 Cargill, Incorporated Melt-stable lactide polymer composition and process for manufacture thereof
ES2123668T3 (es) * 1992-10-02 1999-01-16 Cargill Inc Papel que tiene un recubrimiento de polimero de lactida estable en estado fundido y procedimiento para su fabricacion.
DK0615555T3 (da) 1992-10-02 2001-07-09 Cargill Inc Tekstilmateriale af smeltestabil lactidpolymer og fremgangsmåde til fremstilling deraf
FR2726559B1 (fr) * 1994-11-04 1997-01-31 Flamel Tech Sa Procede de production d'esters cycliques d'acides alpha-hydroxycarboxyliques
US5801255A (en) * 1996-08-01 1998-09-01 Shimadzu Corporation Method for producing lactide and apparatus used therefor
US6313319B1 (en) 1998-09-25 2001-11-06 Shimadzu Corporation Method for purifying lactide and lactide for food additives
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DE102007045701B3 (de) * 2007-09-24 2009-05-14 Uhde Gmbh Gewinnung von Milchsäure durch Fermentation und Extraktion mit Aminen
KR101154029B1 (ko) * 2009-05-20 2012-06-07 한국화학연구원 젖산에스테르로부터 락타이드의 직접 전환용 촉매 및 이를 이용한 락타이드의 제조방법
EP2806038B1 (en) 2010-10-28 2018-07-25 Total Research & Technology Feluy Use of Monascus in organic acid production
WO2013160485A1 (de) 2012-04-28 2013-10-31 Uhde Inventa-Fischer Gmbh Verfahren zur kontinuierlichen herstellung von lactid direkt aus konzentrierter milchsäure
KR101467202B1 (ko) * 2013-06-21 2014-12-01 한국화학연구원 젖산으로부터 락타이드 직접 제조용 성형 촉매 및 이의 제조 방법
KR101704563B1 (ko) 2015-10-12 2017-02-08 한국화학연구원 락타이드 정제공정을 이용한 락타이드 제조방법 및 제조장치
WO2017220521A1 (en) * 2016-06-20 2017-12-28 Total Research & Technology Feluy Single step lactide production process with hydrolysis of oligomers and catalyst by recovered water
US10745374B2 (en) 2016-06-20 2020-08-18 Total Research & Technology Feluy Single step lactide production process with recovering water by decantation
WO2017220522A1 (en) * 2016-06-20 2017-12-28 Total Research & Technology Feluy Single step lactide production process with heat recovery
KR102013714B1 (ko) * 2017-03-09 2019-08-23 연세대학교 산학협력단 락타이드 연속 제조 방법 및 장치
CN111039918A (zh) * 2019-12-24 2020-04-21 安徽丰原发酵技术工程研究有限公司 一步气相反应制备d-丙交酯的方法
UA145097U (uk) 2020-05-07 2020-11-25 Товариство З Обмеженою Відповідальністю "Виробнича Група "Техінсервіс" СПОСІБ ОДЕРЖАННЯ ЛАКТИДУ З С<sub>3</sub>-ПОЛІОЛІВ
CN114805285A (zh) * 2022-06-07 2022-07-29 南昌大学 一种从l-乳酸制备丙交酯的方法
CN115504958B (zh) * 2022-10-20 2023-12-19 山东寿光巨能金玉米开发有限公司 一种丙交酯与乳酸酯联合生产的方法

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Also Published As

Publication number Publication date
IE63141B1 (en) 1995-03-22
PT98999A (pt) 1992-07-31
MX9101130A (es) 1992-05-04
KR930702330A (ko) 1993-09-08
EP0549698A1 (en) 1993-07-07
ATE113944T1 (de) 1994-11-15
JPH06501467A (ja) 1994-02-17
IL99520A0 (en) 1992-08-18
AU652963B2 (en) 1994-09-15
HK175695A (en) 1995-11-24
MY106760A (en) 1995-07-31
US5332839A (en) 1994-07-26
AU8630591A (en) 1992-04-15
IE913273A1 (en) 1992-02-25
FI95696C (fi) 1996-03-11
WO1992005168A1 (en) 1992-04-02
ZA917452B (en) 1992-05-27
KR0171431B1 (en) 1999-02-01
DE69105144D1 (de) 1994-12-15
EP0549698B1 (en) 1994-11-09
NZ239825A (en) 1993-08-26
DE69105144T2 (de) 1995-03-23
ES2063527T3 (es) 1995-01-01
JP3236289B2 (ja) 2001-12-10
CA2091689A1 (en) 1992-03-19
FI931184A (fi) 1993-03-17
BR9106854A (pt) 1993-08-24
CN1061223A (zh) 1992-05-20
FI931184A0 (fi) 1993-03-17
FI95696B (fi) 1995-11-30

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