BR0208252A - Processo de destilação azeotrópica de ésteres cìclicos de ácidos hidróxi-orgânicos - Google Patents
Processo de destilação azeotrópica de ésteres cìclicos de ácidos hidróxi-orgânicosInfo
- Publication number
- BR0208252A BR0208252A BR0208252-7A BR0208252A BR0208252A BR 0208252 A BR0208252 A BR 0208252A BR 0208252 A BR0208252 A BR 0208252A BR 0208252 A BR0208252 A BR 0208252A
- Authority
- BR
- Brazil
- Prior art keywords
- azeotropic distillation
- organic
- cyclic
- hydroxy acid
- ester
- Prior art date
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)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (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)
Abstract
"PROCESSO DE DESTILAçãO AZEOTRóPICA DE éSTERES CìCLICOS DE áCIDOS HIDRóXI-ORGâNICOS". ésteres cíclicos de ácidos hidróxi-orgânicos podem ser produzidos e recuperados via destilação azeotrópica. Em certas configurações ésteres cíclicos, tais como glicolídeo e lactídeo, podem ser produzidos a partir de um caldo de fermentação ou outra corrente de alimentação que compreenda um ácido hidróxi orgânico, um sal de amónia de um ácido hidróxi orgânico, uma amida de um ácido hidróxi orgânico, ou um éster de um ácido hidróxi orgânico usando destilação azeotrópica. O agente azeotropante da corrente de alimentação ou o ácido hidróxi orgânico derivado da corrente de alimentação por decomposição é reagido para produzir o éster cíclico. Em outras configurações uma composição bruta de um éster cíclico de um éster orgânico pode ser purificada usando destilação azeotrópica.
Applications Claiming Priority (2)
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 |
PCT/US2002/006923 WO2003004126A2 (en) | 2001-03-15 | 2002-03-06 | Azeotropic distillation of cyclic esters of hydroxy organic acids |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0208252A true BR0208252A (pt) | 2004-08-17 |
Family
ID=25201550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0208252-7A BR0208252A (pt) | 2001-03-15 | 2002-03-06 | Processo de destilação azeotrópica de ésteres cìclicos de ácidos hidróxi-orgânicos |
Country Status (9)
Country | Link |
---|---|
US (1) | US6984293B2 (pt) |
EP (1) | EP1412043B1 (pt) |
CN (1) | CN1253230C (pt) |
AT (1) | ATE421899T1 (pt) |
AU (1) | AU2002339838A1 (pt) |
BR (1) | BR0208252A (pt) |
CA (1) | CA2440918A1 (pt) |
DE (1) | DE60231045D1 (pt) |
WO (1) | WO2003004126A2 (pt) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US8101808B2 (en) | 2007-12-27 | 2012-01-24 | Gevo, Inc. | Recovery of higher alcohols from dilute aqueous solutions |
US8436156B2 (en) * | 2008-01-04 | 2013-05-07 | Tate & Lyle Technology Limited | Method for the production of sucralose |
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 |
US8212022B2 (en) * | 2008-04-03 | 2012-07-03 | Tate & Lyle Technology Limited | Effect of carbohydrate concentration on sucralose extraction efficiency |
US8497367B2 (en) * | 2008-04-03 | 2013-07-30 | Tate & Lyle Technology Limited | Sucralose purification process |
WO2011044243A1 (en) * | 2009-10-06 | 2011-04-14 | Gevo, Inc. | Integrated process to selectively convert renewable isobutanol to p-xylene |
FR2974802B1 (fr) | 2011-05-06 | 2013-09-13 | Roquette Freres | Procede de purification de l'acide glycolique par distillation |
FR2974804B1 (fr) | 2011-05-06 | 2013-05-03 | Roquette Freres | Procede de preparation d'un acide glycolique de haute purete |
WO2014080876A1 (ja) * | 2012-11-22 | 2014-05-30 | 株式会社クレハ | 気液の向流接触による精留工程を備えるグリコリドの製造方法、及び、粗グリコリドの精製方法 |
WO2016194003A2 (en) * | 2015-05-29 | 2016-12-08 | Arvind Mallinath Lali | Separation of organic acids from mixtures containing ammonium salts of organic acids |
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 |
JP7293384B2 (ja) * | 2019-03-08 | 2023-06-19 | アール・エイ・アイ・ストラテジック・ホールディングス・インコーポレイテッド | エアロゾル供給装置用乳酸の加水分解方法 |
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 |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US321925A (en) | 1885-07-07 | Process of distilling lactic acid | ||
US2953503A (en) | 1956-08-10 | 1960-09-20 | Union Carbide Corp | Method for the purification of n, n-dimethylacetamide |
FR1359885A (fr) * | 1963-03-21 | 1964-04-30 | Electrochimie Soc | Procédé de fabrication d'acide acrylique glacial |
US3419478A (en) * | 1966-12-13 | 1968-12-31 | Du Pont | Azeotropic distillation of a n,n-dimethylacetamide-acetic acid mixture using a saturated aliphatic hydrocarbon |
US3718545A (en) * | 1971-04-26 | 1973-02-27 | Celanese Corp | Distillation process for recovering substantially anhydrous formic acid from aqueous solutions |
IL39710A (en) | 1972-06-19 | 1975-04-25 | Imi Inst For Res & Dev | Recovery of acids from aqueous solutions by solvent extraction |
FR2308611A1 (fr) | 1975-04-24 | 1976-11-19 | Rhone Poulenc Ind | Procede de recuperation de l'acide acetique a partir de ses solutions aqueuses de faible concentration |
DE2714564C2 (de) * | 1977-04-01 | 1986-01-02 | Chemische Werke Hüls AG, 4370 Marl | Verfahren zur Herstellung von cyclischen Diestern der Undecandisäure |
EP0002598B1 (en) * | 1977-12-19 | 1981-07-22 | Imperial Chemical Industries Plc | Process for the purification of alkane dicarboxylic acids having at least 4 carbon atoms |
US5319107A (en) | 1990-09-18 | 1994-06-07 | Biopak Technology, Ltd. | Method to produce cyclic esters |
US5068418A (en) * | 1989-05-08 | 1991-11-26 | Uop | Separation of lactic acid from fermentation broth with an anionic polymeric absorbent |
US5149833A (en) | 1989-05-26 | 1992-09-22 | Boehringer Ingelheim Gmbh | Process for preparing D,L-Lactide |
US5138074A (en) | 1990-06-28 | 1992-08-11 | E. I. Du Pont De Nemours And Company | Continuous catalyzed vapor phase dimeric cyclic ester process |
EP0591188A1 (en) | 1990-07-13 | 1994-04-13 | E.I. Du Pont De Nemours And Company | High yield recycle process for lactide |
US5175369A (en) * | 1990-11-01 | 1992-12-29 | Air Products And Chemicals, Inc. | Separation of methoxyisopropylamine from methoxyisopropylamine-water azeotrope |
US5142023A (en) | 1992-01-24 | 1992-08-25 | Cargill, Incorporated | Continuous process for manufacture of lactide polymers with controlled optical purity |
US5420304A (en) | 1992-03-19 | 1995-05-30 | Biopak Technology, Ltd. | Method to produce cyclic esters |
US6187951B1 (en) | 1993-06-29 | 2001-02-13 | Cargill, Incorporated | Lactic acid production, separation and/or recovery process |
US5510526A (en) * | 1993-06-29 | 1996-04-23 | Cargill, Incorporated | Lactic acid production, separation and/or recovery process |
JPH07165753A (ja) | 1993-12-08 | 1995-06-27 | Musashino Kagaku Kenkyusho:Kk | ラクチドの精製方法 |
IL109003A (en) | 1994-03-16 | 1999-09-22 | Yissum Res Dev Co | Process and extractant composition for extracting water-soluble carboxylic and mineral acids |
US5892115A (en) | 1996-01-16 | 1999-04-06 | Showa Denko Kabushiki Kaisha | Highly polymerizable N-vinylcarboxylic acid amide and production process thereof |
US5521278A (en) | 1994-08-18 | 1996-05-28 | Ecological Chemical Products | Integrated process for the manufacture of lactide |
US6160173A (en) | 1996-10-09 | 2000-12-12 | Cargill Incorporated | Process for the recovery of lactic acid esters and amides from aqueous solutions of lactic acid and/or salts thereof |
IL119732A0 (en) | 1996-12-01 | 1997-03-18 | Yissum Res Dev Co | A process for recovery of ascorbic acid |
BE1011197A3 (fr) | 1997-06-06 | 1999-06-01 | Brussels Biotech En Abrege Bb | Procede de purification d'acide lactique. |
IL121207A (en) | 1997-06-30 | 2000-10-31 | Staley Mfg Co A E | Liquid-liquid extraction for the recovery of lactic acid with an amine solution in the presence of carbon dioxide |
US6229046B1 (en) | 1997-10-14 | 2001-05-08 | Cargill, Incorported | Lactic acid processing methods arrangements and products |
US6291708B1 (en) | 1999-04-28 | 2001-09-18 | A.E. Staley Manufacturing Co. | Process for production of organic acids and esters thereof |
-
2001
- 2001-03-15 US US09/809,534 patent/US6984293B2/en not_active Expired - Fee Related
-
2002
- 2002-03-06 CN CN02806442.9A patent/CN1253230C/zh not_active Expired - Fee Related
- 2002-03-06 AT AT02778185T patent/ATE421899T1/de not_active IP Right Cessation
- 2002-03-06 WO PCT/US2002/006923 patent/WO2003004126A2/en not_active Application Discontinuation
- 2002-03-06 AU AU2002339838A patent/AU2002339838A1/en not_active Abandoned
- 2002-03-06 BR BR0208252-7A patent/BR0208252A/pt not_active Application Discontinuation
- 2002-03-06 CA CA002440918A patent/CA2440918A1/en not_active Abandoned
- 2002-03-06 EP EP02778185A patent/EP1412043B1/en not_active Expired - Lifetime
- 2002-03-06 DE DE60231045T patent/DE60231045D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20020157937A1 (en) | 2002-10-31 |
US6984293B2 (en) | 2006-01-10 |
EP1412043A4 (en) | 2004-09-29 |
EP1412043B1 (en) | 2009-01-28 |
ATE421899T1 (de) | 2009-02-15 |
DE60231045D1 (de) | 2009-03-19 |
WO2003004126A2 (en) | 2003-01-16 |
CA2440918A1 (en) | 2003-01-16 |
AU2002339838A1 (en) | 2003-01-21 |
CN1253230C (zh) | 2006-04-26 |
EP1412043A2 (en) | 2004-04-28 |
WO2003004126A3 (en) | 2004-02-19 |
CN1516611A (zh) | 2004-07-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B25D | Requested change of name of applicant approved |
Owner name: TATE AND LYLE INGREDIENTS AMERICAS, INC. (US) Free format text: ALTERADO DE: A.E. STALEY MANUFACTURING CO. |
|
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: INDEFIRO O PEDIDO DE ACORDO COM O ART. 8O COMBINADO COM ART. 13 DA LPI. |
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B09B | Patent application refused [chapter 9.2 patent gazette] |
Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL. |