DE69713258D1 - Verfahren zur Reinigung von Milchsäure - Google Patents

Verfahren zur Reinigung von Milchsäure

Info

Publication number
DE69713258D1
DE69713258D1 DE69713258T DE69713258T DE69713258D1 DE 69713258 D1 DE69713258 D1 DE 69713258D1 DE 69713258 T DE69713258 T DE 69713258T DE 69713258 T DE69713258 T DE 69713258T DE 69713258 D1 DE69713258 D1 DE 69713258D1
Authority
DE
Germany
Prior art keywords
cleaning
lactic acid
lactic
acid
cleaning lactic
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 - Fee Related
Application number
DE69713258T
Other languages
English (en)
Other versions
DE69713258T2 (de
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 DE69713258D1 publication Critical patent/DE69713258D1/de
Publication of DE69713258T2 publication Critical patent/DE69713258T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
DE69713258T 1996-12-20 1997-12-11 Verfahren zur Reinigung von Milchsäure Expired - Fee Related DE69713258T2 (de)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
DE69713258D1 true DE69713258D1 (de) 2002-07-18
DE69713258T2 DE69713258T2 (de) 2003-03-06

Family

ID=18349685

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69713258T Expired - Fee Related DE69713258T2 (de) 1996-12-20 1997-12-11 Verfahren zur Reinigung von Milchsäure

Country Status (4)

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

Families Citing this family (16)

* 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
EP1470099A4 (de) * 2002-01-03 2006-04-12 Staley Mfg Co A E Verfahren zur aufreinigung einer organischen säure
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
US7084311B2 (en) * 2003-05-06 2006-08-01 E. I. Du Pont De Nemours And Company Hydrogenation of chemically derived 1,3-propanediol
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
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
US20040225107A1 (en) * 2003-05-06 2004-11-11 Sunkara Hari Babu Polytrimethylene ether glycol with excellent quality from biochemically-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
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
US8110395B2 (en) 2006-07-10 2012-02-07 Algae Systems, LLC Photobioreactor systems and methods for treating CO2-enriched gas and producing biomass
EP2152848A2 (de) 2007-04-27 2010-02-17 Greenfuel Technologies Corporation Auf gewässern angeordnete photobioreaktorsysteme
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
DE202011110978U1 (de) * 2010-06-21 2017-11-27 Lg Chem, Ltd. Polylactidharz mit ausgezeichneter Wärmebeständigkeit
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2044526A5 (de) * 1969-05-23 1971-02-19 Rhone Poulenc Sa
EP0572675B1 (de) * 1991-12-19 1999-09-22 Mitsui Chemicals, Inc. Polyhydroxycarbonsäure und verfahren zu ihrer herstellung
US5488156A (en) * 1994-12-23 1996-01-30 Uop Preparation of a heat-stable lactic acid

Also Published As

Publication number Publication date
DE69713258T2 (de) 2003-03-06
US6111137A (en) 2000-08-29
EP0849252A1 (de) 1998-06-24
EP0849252B1 (de) 2002-06-12
ES2176596T3 (es) 2002-12-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee