ATE421899T1 - Azeotrope destillation zyklischer ester von organischen hydroxysäuren - Google Patents

Azeotrope destillation zyklischer ester von organischen hydroxysäuren

Info

Publication number
ATE421899T1
ATE421899T1 AT02778185T AT02778185T ATE421899T1 AT E421899 T1 ATE421899 T1 AT E421899T1 AT 02778185 T AT02778185 T AT 02778185T AT 02778185 T AT02778185 T AT 02778185T AT E421899 T1 ATE421899 T1 AT E421899T1
Authority
AT
Austria
Prior art keywords
azeotropic distillation
organic acid
hydroxy organic
cyclic esters
ester
Prior art date
Application number
AT02778185T
Other languages
English (en)
Inventor
Michael Cockrem
Istvan Kovacs
Original Assignee
Tate & Lyle Ingredients
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 Tate & Lyle Ingredients filed Critical Tate & Lyle Ingredients
Application granted granted Critical
Publication of ATE421899T1 publication Critical patent/ATE421899T1/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • C07C51/46—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
    • 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
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/36—Azeotropic distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Polyesters Or Polycarbonates (AREA)
AT02778185T 2001-03-15 2002-03-06 Azeotrope destillation zyklischer ester von organischen hydroxysäuren ATE421899T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/809,534 US6984293B2 (en) 2001-03-15 2001-03-15 Azeotropic distillation of cyclic esters of hydroxy organic acids

Publications (1)

Publication Number Publication Date
ATE421899T1 true ATE421899T1 (de) 2009-02-15

Family

ID=25201550

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02778185T ATE421899T1 (de) 2001-03-15 2002-03-06 Azeotrope destillation zyklischer ester von organischen hydroxysäuren

Country Status (9)

Country Link
US (1) US6984293B2 (de)
EP (1) EP1412043B1 (de)
CN (1) CN1253230C (de)
AT (1) ATE421899T1 (de)
AU (1) AU2002339838A1 (de)
BR (1) BR0208252A (de)
CA (1) CA2440918A1 (de)
DE (1) DE60231045D1 (de)
WO (1) WO2003004126A2 (de)

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DE60226931D1 (de) * 2001-07-16 2008-07-17 Canon Kk Verfahren zur Herstellung von Polyester, Verfahren zur Herstellung von substituierter alpha-Hydroxycarbonsäure und Clostridium beijerinckii-Stamm HICA432
MX2010007210A (es) 2007-12-27 2010-10-08 Gevo Inc Recuperacion de alcoholes superiores a partir de soluciones acuosas diluidas.
AR070082A1 (es) * 2008-01-04 2010-03-10 Tate & Lyle Technology Ltd Metodo para la produccion de sucralosa
JP2011517445A (ja) * 2008-03-20 2011-06-09 テート アンド ライル テクノロジー リミテッド 第三級アミド溶媒からの酸の除去
US8436157B2 (en) * 2008-03-26 2013-05-07 Tate & Lyle Technology Limited Method for the production of sucralose
US8497367B2 (en) * 2008-04-03 2013-07-30 Tate & Lyle Technology Limited Sucralose purification process
KR20100127875A (ko) * 2008-04-03 2010-12-06 테이트 앤드 라일 테크놀러지 리미티드 수크랄로오스 추출 효율에 대한 탄수화물 농도의 효과
JP2013506717A (ja) * 2009-10-06 2013-02-28 ジーヴォ，インコーポレイテッド 再生可能なイソブタノールをｐ−キシレンに選択的に変換するための総合プロセス
FR2974804B1 (fr) 2011-05-06 2013-05-03 Roquette Freres Procede de preparation d'un acide glycolique de haute purete
FR2974802B1 (fr) 2011-05-06 2013-09-13 Roquette Freres Procede de purification de l'acide glycolique par distillation
KR101706484B1 (ko) 2012-11-22 2017-02-13 가부시끼가이샤 구레하 기액의 역류 접촉에 의한 정류 공정을 구비하는 글리콜리드 제조 방법 및 조(粗) 글리콜리드 정제 방법
CN107848938A (zh) 2015-05-29 2018-03-27 阿尔温德·马利纳特·拉利 从包含有机酸铵盐的混合物中分离有机酸
US10399004B2 (en) * 2016-09-08 2019-09-03 Eastman Chemical Company Thermally integrated distillation systems and processes using the same
US10266512B2 (en) 2017-08-10 2019-04-23 Novus International, Inc. Processes for preparing heteroatom containing cyclic dimers
US20200281250A1 (en) * 2019-03-08 2020-09-10 Rai Strategic Holdings, Inc. Method for hydrolysis of lactic acid for aerosol delivery device
CN112843762B (zh) * 2019-11-26 2024-05-24 南京华基塔业有限公司 一种由寡聚物制备丙交酯的反应系统及方法
CN111269541B (zh) * 2020-03-27 2022-02-15 桂林电器科学研究院有限公司 一种抗静电双向拉伸聚乳酸薄膜及其制备方法
CN111499843A (zh) * 2020-04-29 2020-08-07 吉林中粮生化有限公司 基于丙交酯生产聚乳酸的方法、dcs系统及存储介质
CN113842657B (zh) * 2021-10-28 2023-10-03 北京工商大学 一种循环制备丙交酯的设备
WO2023212652A1 (en) * 2022-04-27 2023-11-02 Impact Nano Llc High purity ligand-al-hydride compositions
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

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US321925A (en) 1885-07-07 Process of distilling lactic acid
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FR1359885A (fr) * 1963-03-21 1964-04-30 Electrochimie Soc Procédé de fabrication d'acide acrylique glacial
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Also Published As

Publication number Publication date
DE60231045D1 (de) 2009-03-19
CA2440918A1 (en) 2003-01-16
BR0208252A (pt) 2004-08-17
WO2003004126A2 (en) 2003-01-16
CN1516611A (zh) 2004-07-28
EP1412043A4 (de) 2004-09-29
EP1412043B1 (de) 2009-01-28
WO2003004126A3 (en) 2004-02-19
US20020157937A1 (en) 2002-10-31
EP1412043A2 (de) 2004-04-28
CN1253230C (zh) 2006-04-26
US6984293B2 (en) 2006-01-10
AU2002339838A1 (en) 2003-01-21

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