FI117052B - Menetelmä laktidin puhdistamiseksi - Google Patents

Menetelmä laktidin puhdistamiseksi Download PDF

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Publication number
FI117052B
FI117052B FI945636A FI945636A FI117052B FI 117052 B FI117052 B FI 117052B FI 945636 A FI945636 A FI 945636A FI 945636 A FI945636 A FI 945636A FI 117052 B FI117052 B FI 117052B
Authority
FI
Finland
Prior art keywords
lactide
meso
crude
lactic acid
water
Prior art date
Application number
FI945636A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI945636A0 (fi
FI945636A (fi
Inventor
Yoshiaki Yamaguchi
Tomohiro Arimura
Original Assignee
Musashino Kagaku Kenkyusho
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 Musashino Kagaku Kenkyusho filed Critical Musashino Kagaku Kenkyusho
Publication of FI945636A0 publication Critical patent/FI945636A0/fi
Publication of FI945636A publication Critical patent/FI945636A/fi
Application granted granted Critical
Publication of FI117052B publication Critical patent/FI117052B/fi

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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)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
  • Polyesters Or Polycarbonates (AREA)
FI945636A 1993-12-08 1994-11-29 Menetelmä laktidin puhdistamiseksi FI117052B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP30834693 1993-12-08
JP5308346A JPH07165753A (ja) 1993-12-08 1993-12-08 ラクチドの精製方法

Publications (3)

Publication Number Publication Date
FI945636A0 FI945636A0 (fi) 1994-11-29
FI945636A FI945636A (fi) 1995-06-09
FI117052B true FI117052B (fi) 2006-05-31

Family

ID=17979960

Family Applications (1)

Application Number Title Priority Date Filing Date
FI945636A FI117052B (fi) 1993-12-08 1994-11-29 Menetelmä laktidin puhdistamiseksi

Country Status (6)

Country Link
US (1) US5502215A (zh)
EP (1) EP0657447B1 (zh)
JP (1) JPH07165753A (zh)
CN (1) CN1060170C (zh)
DE (1) DE69405201T2 (zh)
FI (1) FI117052B (zh)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6087459A (en) * 1998-05-14 2000-07-11 Exxon Chemical Patents Inc. Polymeric materials formed using blends of electron donors
WO2000018756A1 (fr) * 1998-09-25 2000-04-06 Shimadzu Corporation Purification de lactide et lactide utilise comme additif alimentaire
US6313319B1 (en) 1998-09-25 2001-11-06 Shimadzu Corporation Method for purifying lactide and lactide for food additives
ES2225112T3 (es) 1999-03-22 2005-03-16 Purac Biochem Bv Procedimiento de purificacion de acido lactico a escala industrial.
EP1136480A1 (fr) * 2000-03-23 2001-09-26 Brussels Biotech Procedé de purification d'esters cycliques
US6984293B2 (en) * 2001-03-15 2006-01-10 Tate & Lyle Ingredients Azeotropic distillation of cyclic esters of hydroxy organic acids
DE10145223A1 (de) * 2001-09-13 2003-04-03 Basf Ag Verfahren zur Herstellung von meso-Zeaxanthin
BE1015060A3 (fr) * 2002-08-06 2004-09-07 Brussels Biotech Nv Sa Procede de production de polylactide au depart d'une solution d'acide lactique ou d'un de ses derives.
DE102006024016B4 (de) * 2006-05-23 2008-04-03 Infineon Technologies Ag Speicher mit einem Ausgangsregister für Testdaten und Verfahren zum Testen eines Speichers
AT506768B1 (de) 2008-04-16 2013-10-15 Jungbunzlauer Austria Ag Verfahren zur reinigung zyklischer diester der l- bzw. d-milchsäure
MX2011001726A (es) * 2008-08-29 2011-08-17 Uhde Inventa Fischer Gmbh Metodo para la produccion de una mezcla de derivados de lactida.
CN102625802B (zh) * 2009-03-13 2016-03-23 自然工作有限责任公司 利用内消旋丙交酯再循环来制备丙交酯的方法
CN102869655B (zh) 2010-02-26 2014-11-26 科学与工业研究委员会 用于制备高化学收率和光学纯度的l-丙交酯的改进方法
CN101845038B (zh) * 2010-05-13 2014-01-15 中国石油天然气集团公司 丙交酯精制残液处理方法及装置
KR20140077877A (ko) 2011-07-15 2014-06-24 플라시카 리미티드 분리방법
US20150152449A1 (en) * 2012-06-11 2015-06-04 Plaxica Limited Lactate Production Process
US20150329694A1 (en) * 2012-07-02 2015-11-19 Unitika Ltd. Polylactic acid resin composition and molded body which is obtained using same
EP2725019B1 (de) 2012-10-26 2015-04-08 Uhde Inventa-Fischer GmbH Verfahren zur Herstellung cyclischer Diester, insbesondere Dilactid
EP3034534A1 (en) 2014-12-17 2016-06-22 PURAC Biochem BV Substrates coated or bonded with a composition comprising a polyurethane
WO2016097002A1 (en) 2014-12-17 2016-06-23 Purac Biochem Bv Substrates coated or bonded with a composition comprising a polyurethane
CN104861157B (zh) * 2015-06-01 2016-09-28 中国科学院长春应用化学研究所 一种低光学纯度高分子量聚乳酸的制备方法
WO2017050928A1 (en) 2015-09-22 2017-03-30 Purac Biochem Bv Process for manufacturing cooked meat products
KR101704563B1 (ko) 2015-10-12 2017-02-08 한국화학연구원 락타이드 정제공정을 이용한 락타이드 제조방법 및 제조장치
CN105440011A (zh) * 2015-12-17 2016-03-30 常州大学 一种快速提纯久置环酯的方法
CN106397388B (zh) * 2016-09-07 2019-02-01 南京大学科技园发展有限公司 一种粗品环酯纯化制备高纯度环酯的工艺
EP3414099A1 (en) 2017-01-10 2018-12-19 Mitsubishi HiTec Paper Europe GmbH Novel colour developer for a thermo-sensitive recording medium, and a heat-sensitive recording material based on pla
CN106892894B (zh) * 2017-03-01 2021-07-02 中国科学院长春应用化学研究所 一种高光学纯度丙交酯的制备方法
RU2699801C1 (ru) * 2018-11-20 2019-09-11 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский государственный университет" (ТГУ, НИ ТГУ) Способ очистки лактида
CN114478470B (zh) * 2020-10-28 2024-04-19 中国石油化工股份有限公司 一种提纯丙交酯的方法
CN116063270A (zh) 2021-10-31 2023-05-05 中国石油化工股份有限公司 一种梯级控制连续制备丙交酯的方法及***

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0261572A1 (de) * 1986-09-20 1988-03-30 Boehringer Ingelheim Kg Verfahren zur Herstellung von Lactid
DD301436A7 (de) * 1988-06-23 1993-01-21 Inst Polymerenchemie Der Adw Verfahren zur reinigung von 1,4-dioxan-2,5-dion oder d,l- bzw. l,l-3,6-dimethyl-1,4-dioxan-2,5-dion
US5274127A (en) * 1990-09-18 1993-12-28 Biopak Technology, Ltd. Lactide production from dehydration of aqueous lactic acid feed
DE3917178A1 (de) * 1989-05-26 1990-11-29 Boehringer Ingelheim Kg Verbessertes verfahren zur herstellung von d,l-lactid
EP0591188A1 (en) * 1990-07-13 1994-04-13 E.I. Du Pont De Nemours And Company High yield recycle process for lactide

Also Published As

Publication number Publication date
DE69405201T2 (de) 1998-01-29
JPH07165753A (ja) 1995-06-27
FI945636A0 (fi) 1994-11-29
CN1112559A (zh) 1995-11-29
CN1060170C (zh) 2001-01-03
EP0657447B1 (en) 1997-08-27
EP0657447A1 (en) 1995-06-14
FI945636A (fi) 1995-06-09
DE69405201D1 (de) 1997-10-02
US5502215A (en) 1996-03-26

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