ES2176596T3 - Procedimiento de purificacion del acido lactico. - Google Patents

Procedimiento de purificacion del acido lactico.

Info

Publication number
ES2176596T3
ES2176596T3 ES97121862T ES97121862T ES2176596T3 ES 2176596 T3 ES2176596 T3 ES 2176596T3 ES 97121862 T ES97121862 T ES 97121862T ES 97121862 T ES97121862 T ES 97121862T ES 2176596 T3 ES2176596 T3 ES 2176596T3
Authority
ES
Spain
Prior art keywords
lactic acid
procedure
purification
reduction treatment
quality
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
ES97121862T
Other languages
English (en)
Inventor
Hiroshi Suizu
Masanobu Ajioka
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.)
Mitsui Chemicals Inc
Original Assignee
Mitsui Chemicals Inc
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 Mitsui Chemicals Inc filed Critical Mitsui Chemicals Inc
Application granted granted Critical
Publication of ES2176596T3 publication Critical patent/ES2176596T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • 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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

LA INVENCION DESCRIBE UN PROCEDIMIENTO PARA TRATAR EL ACIDO PIRUVICO Y OTRAS IMPUREZAS DEL ACIDO LACTICO MEDIANTE UN TRATAMIENTO DE REDUCCION DE UNA SOLUCION DE ACIDO LACTICO ACUOSA, Y PARA OBTENER UN ACIDO LACTICO DE ELEVADA CALIDAD QUE NO PRESENTE SUSTANCIALMENTE UN CONTENIDO EN ACIDO PIRUVICO, QUE PRESENTE SUSTANCIALMENTE UNA ELEVADA PUREZA, UNA EXCELENTE ESTABILIDAD TERMICA Y UN OLOR MEJORADO. ADEMAS PUEDE PREPARARSE UN POLI(ACIDO LACTICO) DE ELEVADO PESO MOLECULAR QUE PRESENTA UNA BAJA COLORACION Y UNA CALIDAD CONSECUENTE MEDIANTE UNA POLICONDENSACION DE DESHIDRATACION DEL ACIDO LACTICO OBTENIDO MEDIANTE EL TRATAMIENTO DE REDUCCION DE LA INVENCION.
ES97121862T 1996-12-20 1997-12-11 Procedimiento de purificacion del acido lactico. Expired - Lifetime ES2176596T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34190896 1996-12-20

Publications (1)

Publication Number Publication Date
ES2176596T3 true ES2176596T3 (es) 2002-12-01

Family

ID=18349685

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97121862T Expired - Lifetime ES2176596T3 (es) 1996-12-20 1997-12-11 Procedimiento de purificacion del acido lactico.

Country Status (4)

Country Link
US (1) US6111137A (es)
EP (1) EP0849252B1 (es)
DE (1) DE69713258T2 (es)
ES (1) ES2176596T3 (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2809393B1 (fr) 2000-05-23 2003-09-05 Roquette Freres Procede de preparation d'acide lactique par evapocristallisation
CA2470978A1 (en) * 2002-01-03 2003-07-24 A.E. Staley Manufacturing Co. Process for purifying an organic acid
US6641734B2 (en) * 2002-01-03 2003-11-04 A. E. Staley Manufacturing Co. Process for purifying an organic acid
US8507253B2 (en) 2002-05-13 2013-08-13 Algae Systems, LLC Photobioreactor cell culture systems, methods for preconditioning photosynthetic organisms, and cultures of photosynthetic organisms produced thereby
US20050239182A1 (en) * 2002-05-13 2005-10-27 Isaac Berzin Synthetic and biologically-derived products produced using biomass produced by photobioreactors configured for mitigation of pollutants in flue gases
US7745668B2 (en) * 2003-05-06 2010-06-29 E. I. Du Pont De Nemours And Company Processes for reducing color in polytrimethylene ether glycol polymers
US7084311B2 (en) * 2003-05-06 2006-08-01 E. I. Du Pont De Nemours And Company Hydrogenation of chemically derived 1,3-propanediol
US7342142B2 (en) * 2003-05-06 2008-03-11 E.I. Du Pont De Nemours And Company Hydrogenation of polytrimethylene ether glycol
US20040225107A1 (en) * 2003-05-06 2004-11-11 Sunkara Hari Babu Polytrimethylene ether glycol with excellent quality from biochemically-derived 1,3-propanediol
US7009082B2 (en) * 2003-05-06 2006-03-07 E.I. Du Pont De Nemours And Company Removal of color bodies from polytrimethylene ether glycol polymers
US7323539B2 (en) 2003-05-06 2008-01-29 E. I. Du Pont De Nemours And Company Polytrimethylene ether glycol and polytrimethylene ether ester with excellent quality
US8110395B2 (en) 2006-07-10 2012-02-07 Algae Systems, LLC Photobioreactor systems and methods for treating CO2-enriched gas and producing biomass
EP2152848A2 (en) 2007-04-27 2010-02-17 Greenfuel Technologies Corporation Photobioreactor systems positioned on bodies of water
CN101805498B (zh) * 2009-02-13 2012-08-15 东丽纤维研究所（中国）有限公司 一种含有磺酸化合物和含氮有机化合物的聚乳酸组合物及其制备方法
KR101130825B1 (ko) * 2010-06-21 2012-03-28 주식회사 엘지화학 내열성이 우수한 폴리락타이드 수지 및 이의 제조방법
CN115043725B (zh) * 2022-08-04 2024-02-09 湖北福星生物科技有限公司 一种聚乳酸降解制备2-溴丙酸酯类化合物和乳酸酯类化合物的方法
CN120826473A (zh) * 2023-02-27 2025-10-21 阿彻-丹尼尔斯-米德兰德公司 用于改进具有一定对映异构体纯度的含水乳酸溶液的热稳定性的工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2044526A5 (es) * 1969-05-23 1971-02-19 Rhone Poulenc Sa
KR970007322B1 (ko) * 1991-12-19 1997-05-07 미쓰이도오아쓰 가가쿠 가부시키가이샤 폴리히드록시 카르복실산 및 그 제조방법
US5488156A (en) * 1994-12-23 1996-01-30 Uop Preparation of a heat-stable lactic acid

Also Published As

Publication number Publication date
EP0849252A1 (en) 1998-06-24
EP0849252B1 (en) 2002-06-12
DE69713258T2 (de) 2003-03-06
US6111137A (en) 2000-08-29
DE69713258D1 (de) 2002-07-18

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