PT932594E - Processo para a recuperacao de acido lactico - Google Patents

Processo para a recuperacao de acido lactico

Info

Publication number: PT932594E
Authority: PT; Portugal
Prior art keywords: lactic acid; moiety; anion exchanger; recovery; feed solution
Prior art date: 1996-10-09

Application number

PT97911613T

Other languages

English (en)

Inventor

Patrick Richard Gruber

Aharon Meir Eyal

Paul Mcwilliams

David R Witzke

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.)

1996-10-09

Filing date

1997-10-02

Publication date

2002-11-29

1997-10-02 Application filed by Cargill Inc filed Critical Cargill Inc

2002-11-29 Publication of PT932594E publication Critical patent/PT932594E/pt

Links

238000000034 method Methods 0.000 title abstract 2
238000011084 recovery Methods 0.000 title abstract 2
239000002253 acid Substances 0.000 title 1
JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 abstract 9
239000004310 lactic acid Substances 0.000 abstract 5
235000014655 lactic acid Nutrition 0.000 abstract 4
150000001450 anions Chemical class 0.000 abstract 3
239000012527 feed solution Substances 0.000 abstract 2
150000001412 amines Chemical class 0.000 abstract 1
238000006482 condensation reaction Methods 0.000 abstract 1
125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
150000003903 lactic acid esters Chemical class 0.000 abstract 1
239000000203 mixture Substances 0.000 abstract 1
125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 1
150000003335 secondary amines Chemical group 0.000 abstract 1

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)

PT97911613T 1996-10-09 1997-10-02 Processo para a recuperacao de acido lactico PT932594E (pt)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number	Publication Date
PT932594E true PT932594E (pt)	2002-11-29

Family

ID=11069360

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
PT97911613T PT932594E (pt)	1996-10-09	1997-10-02	Processo para a recuperacao de acido lactico

Country Status (10)

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

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
CA2321759A1 (en) *	1998-03-02	1999-09-10	Elankovan Ponnampalam	Purification of organic acids using anion exchange chromatography
NL2009377C2 (en) *	2012-08-28	2014-03-03	Univ Delft Tech	Ester formation.

Family Cites Families (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
FR2677354B1 (fr) *	1991-06-05	1993-09-03	Rhone Poulenc Chimie	Procede pour la preparation d'esters d'acides racemisables.
JPH07258154A (ja) *	1994-03-25	1995-10-09	Nitto Chem Ind Co Ltd	乳酸エステルの製法
IL117232A0 (en) *	1996-02-22	1996-06-18	Yissum Res Dev Co	A process for the production of an ester or polyester of carboxylic acid from a concentrated fermentation liquor

1996
- 1996-10-09 IL IL11938896A patent/IL119388A/xx not_active IP Right Cessation
1997
- 1997-10-02 PT PT97911613T patent/PT932594E/pt unknown
- 1997-10-02 DE DE69714278T patent/DE69714278T2/de not_active Expired - Fee Related
- 1997-10-02 ES ES97911613T patent/ES2180952T3/es not_active Expired - Lifetime
- 1997-10-02 AU AU48937/97A patent/AU4893797A/en not_active Abandoned
- 1997-10-02 WO PCT/US1997/017775 patent/WO1998015519A2/en not_active Ceased
- 1997-10-02 AT AT97911613T patent/ATE221042T1/de not_active IP Right Cessation
- 1997-10-02 DK DK97911613T patent/DK0932594T3/da active
- 1997-10-02 BR BR9712224-6A patent/BR9712224A/pt not_active IP Right Cessation
- 1997-10-02 EP EP97911613A patent/EP0932594B1/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
IL119388A0 (en)	1997-01-10
DE69714278D1 (de)	2002-08-29
DE69714278T2 (de)	2003-02-13
WO1998015519A2 (en)	1998-04-16
EP0932594B1 (en)	2002-07-24
BR9712224A (pt)	2002-03-05
AU4893797A (en)	1998-05-05
EP0932594A2 (en)	1999-08-04
DK0932594T3 (da)	2002-10-14
ATE221042T1 (de)	2002-08-15
ES2180952T3 (es)	2003-02-16
WO1998015519A3 (en)	1998-07-02
IL119388A (en)	2000-07-16

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