WO1998015519A3 - A process for the recovery of lactic acid esters and amides from aqueous solutions of lactic acid and/or salts thereof - Google Patents

A process for the recovery of lactic acid esters and amides from aqueous solutions of lactic acid and/or salts thereof Download PDF

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Publication number
WO1998015519A3
WO1998015519A3 PCT/US1997/017775 US9717775W WO9815519A3 WO 1998015519 A3 WO1998015519 A3 WO 1998015519A3 US 9717775 W US9717775 W US 9717775W WO 9815519 A3 WO9815519 A3 WO 9815519A3
Authority
WO
WIPO (PCT)
Prior art keywords
lactic acid
recovery
moiety
anion exchanger
amides
Prior art date
Application number
PCT/US1997/017775
Other languages
French (fr)
Other versions
WO1998015519A2 (en
Inventor
Aharon Meir Eyal
Patrick R Gruber
Paul Mcwilliams
David R Witzke
Original Assignee
Cargill Inc
Aharon Meir Eyal
Patrick R Gruber
Paul Mcwilliams
David R Witzke
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 Cargill Inc, Aharon Meir Eyal, Patrick R Gruber, Paul Mcwilliams, David R Witzke filed Critical Cargill Inc
Priority to EP97911613A priority Critical patent/EP0932594B1/en
Priority to DE69714278T priority patent/DE69714278T2/en
Priority to AT97911613T priority patent/ATE221042T1/en
Priority to DK97911613T priority patent/DK0932594T3/en
Priority to AU48937/97A priority patent/AU4893797A/en
Priority to CA002268311A priority patent/CA2268311C/en
Priority to US09/284,108 priority patent/US6160173A/en
Priority to BR9712224-6A priority patent/BR9712224A/en
Publication of WO1998015519A2 publication Critical patent/WO1998015519A2/en
Publication of WO1998015519A3 publication Critical patent/WO1998015519A3/en

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
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • 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
    • C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

The invention provides a process for the recovery of purified lactic acid values from an aqueous feed solution containing lactic acid, lactic acid salt, or mixtures thereof, comprising: bringing the feed solution into contact with a substantially immiscible anion exchanger to form a substantially water-immiscible phase comprising an anion exchanger-lactic acid adduct; effecting a condensation reaction in the substantially water-immiscible phase between a carboxylic moiety of the lactic acid adduct and a moiety selected from a hydroxyl moiety and a primary or secondary amine moiety to respectively form a lactic acid ester or amine product; and separating the formed lactic acid product from the anion exchanger.
PCT/US1997/017775 1996-10-09 1997-10-02 A process for the recovery of lactic acid esters and amides from aqueous solutions of lactic acid and/or salts thereof WO1998015519A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP97911613A EP0932594B1 (en) 1996-10-09 1997-10-02 A process for the recovery of lactic acid
DE69714278T DE69714278T2 (en) 1996-10-09 1997-10-02 METHOD FOR OBTAINING LACTIC ACID ESTERS AND AMIDES FROM AQUEOUS SOLUTIONS OF LACTIC ACID AND / OR THEIR SALTS
AT97911613T ATE221042T1 (en) 1996-10-09 1997-10-02 METHOD FOR OBTAINING LACTIC ACID ESTERS AND AMIDES FROM AQUEOUS SOLUTIONS OF LACTIC ACID AND/OR SALTS THEREOF
DK97911613T DK0932594T3 (en) 1996-10-09 1997-10-02 Process for the recovery of lactic acid
AU48937/97A AU4893797A (en) 1996-10-09 1997-10-02 A process for the recovery of lactic acid
CA002268311A CA2268311C (en) 1996-10-09 1997-10-02 A process for the recovery of lactic acid esters and amides from aqueous solutions of lactic acid and/or salts thereof
US09/284,108 US6160173A (en) 1996-10-09 1997-10-02 Process for the recovery of lactic acid esters and amides from aqueous solutions of lactic acid and/or salts thereof
BR9712224-6A BR9712224A (en) 1996-10-09 1997-10-02 Process for the recovery of purified lactic acid values

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL11938896A IL119388A (en) 1996-10-09 1996-10-09 Process for the preparation of lactic acid and its esters or amides using an anion exchanger
IL119388 1996-10-09

Publications (2)

Publication Number Publication Date
WO1998015519A2 WO1998015519A2 (en) 1998-04-16
WO1998015519A3 true WO1998015519A3 (en) 1998-07-02

Family

ID=11069360

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/017775 WO1998015519A2 (en) 1996-10-09 1997-10-02 A process for the recovery of lactic acid esters and amides from aqueous solutions of lactic acid and/or salts thereof

Country Status (10)

Country Link
EP (1) EP0932594B1 (en)
AT (1) ATE221042T1 (en)
AU (1) AU4893797A (en)
BR (1) BR9712224A (en)
DE (1) DE69714278T2 (en)
DK (1) DK0932594T3 (en)
ES (1) ES2180952T3 (en)
IL (1) IL119388A (en)
PT (1) PT932594E (en)
WO (1) WO1998015519A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6229046B1 (en) 1997-10-14 2001-05-08 Cargill, Incorported Lactic acid processing methods arrangements and products
US6475759B1 (en) 1997-10-14 2002-11-05 Cargill, Inc. Low PH lactic acid fermentation
JP2002505310A (en) * 1998-03-02 2002-02-19 ミシガン バイオテクノロジー インステイテユート Purification of organic acids using anion exchange chromatography
NL2009377C2 (en) 2012-08-28 2014-03-03 Univ Delft Tech Ester formation.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5132456A (en) * 1991-05-07 1992-07-21 The Regents Of The University Of California Sorption of carboxylic acid from carboxylic salt solutions at PHS close to or above the pKa of the acid, with regeneration with an aqueous solution of ammonia or low-molecular-weight alkylamine
EP0517571A1 (en) * 1991-06-05 1992-12-09 Rhone-Poulenc Chimie Process for the preparation of esters of racemizable acids
US5252473A (en) * 1990-01-23 1993-10-12 Battelle Memorial Institute Production of esters of lactic acid, esters of acrylic acid, lactic acid, and acrylic acid
JPH07258154A (en) * 1994-03-25 1995-10-09 Nitto Chem Ind Co Ltd Production of lactic acid ester
WO1997030964A1 (en) * 1996-02-22 1997-08-28 Yissum Research Development Company Of The Hebrew University Of Jerusalem A process for the production of a condensation product of a carboxylic acid

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5252473A (en) * 1990-01-23 1993-10-12 Battelle Memorial Institute Production of esters of lactic acid, esters of acrylic acid, lactic acid, and acrylic acid
US5132456A (en) * 1991-05-07 1992-07-21 The Regents Of The University Of California Sorption of carboxylic acid from carboxylic salt solutions at PHS close to or above the pKa of the acid, with regeneration with an aqueous solution of ammonia or low-molecular-weight alkylamine
EP0517571A1 (en) * 1991-06-05 1992-12-09 Rhone-Poulenc Chimie Process for the preparation of esters of racemizable acids
JPH07258154A (en) * 1994-03-25 1995-10-09 Nitto Chem Ind Co Ltd Production of lactic acid ester
WO1997030964A1 (en) * 1996-02-22 1997-08-28 Yissum Research Development Company Of The Hebrew University Of Jerusalem A process for the production of a condensation product of a carboxylic acid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 9549, Derwent World Patents Index; Class B05, AN 95380018, XP002059567 *

Also Published As

Publication number Publication date
DE69714278D1 (en) 2002-08-29
DK0932594T3 (en) 2002-10-14
BR9712224A (en) 2002-03-05
EP0932594B1 (en) 2002-07-24
PT932594E (en) 2002-11-29
EP0932594A2 (en) 1999-08-04
AU4893797A (en) 1998-05-05
ATE221042T1 (en) 2002-08-15
ES2180952T3 (en) 2003-02-16
WO1998015519A2 (en) 1998-04-16
IL119388A0 (en) 1997-01-10
DE69714278T2 (en) 2003-02-13
IL119388A (en) 2000-07-16

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