CA2268311C - Procede de recuperation de l'acide lactique - Google Patents

Procede de recuperation de l'acide lactique Download PDF

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Publication number
CA2268311C
CA2268311C CA002268311A CA2268311A CA2268311C CA 2268311 C CA2268311 C CA 2268311C CA 002268311 A CA002268311 A CA 002268311A CA 2268311 A CA2268311 A CA 2268311A CA 2268311 C CA2268311 C CA 2268311C
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CA
Canada
Prior art keywords
lactic acid
process according
anion exchanger
immiscible
condensation reaction
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
CA002268311A
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English (en)
Other versions
CA2268311A1 (fr
Inventor
Aharon Meir Eyal
Patrick R. Gruber
Paul Mcwilliams
David R. Witzke
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.)
Cargill Inc
Original Assignee
Cargill 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 Cargill Inc filed Critical Cargill Inc
Priority claimed from PCT/US1997/017775 external-priority patent/WO1998015519A2/fr
Publication of CA2268311A1 publication Critical patent/CA2268311A1/fr
Application granted granted Critical
Publication of CA2268311C publication Critical patent/CA2268311C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention porte sur un procédé de récupération de valeurs d'acide lactique purifié à partir d'une solution aqueuse à traiter contenant de l'acide lactique, de sel d'acide lactique ou des mélanges de ceux-ci. Ce procédé consiste à: mettre la solution à traiter en contact avec un échangeur d'anions pratiquement immiscible de façon à obtenir une phase pratiquement immiscible dans l'eau comprenant un échangeur d'anions-un produit d'addition d'acide lactique; effectuer une réaction de condensation dans la phase pratiquement immiscible dans l'eau entre une fraction carboxylique du produit d'addition d'acide lactique et une fraction sélectionnée à partir d'une fraction hydroxyle et une fraction d'amine primaire ou secondaire de façon à obtenir respectivement un ester d'acide lactique ou un produit d'amine; et séparer le produit d'acide lactique obtenu à partir de l'échangeur d'anions.
CA002268311A 1996-10-09 1997-10-02 Procede de recuperation de l'acide lactique Expired - Fee Related CA2268311C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IL19938896 1996-10-09
IL199388 1996-10-09
PCT/US1997/017775 WO1998015519A2 (fr) 1996-10-09 1997-10-02 Procede de recuperation de l'acide lactique

Publications (2)

Publication Number Publication Date
CA2268311A1 CA2268311A1 (fr) 1998-04-16
CA2268311C true CA2268311C (fr) 2006-12-12

Family

ID=29596529

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002268311A Expired - Fee Related CA2268311C (fr) 1996-10-09 1997-10-02 Procede de recuperation de l'acide lactique

Country Status (1)

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CA (1) CA2268311C (fr)

Also Published As

Publication number Publication date
CA2268311A1 (fr) 1998-04-16

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