BR0215459A - Process for purifying organic acids such as lactic acid - Google Patents
Process for purifying organic acids such as lactic acidInfo
- Publication number
- BR0215459A BR0215459A BR0215459-5A BR0215459A BR0215459A BR 0215459 A BR0215459 A BR 0215459A BR 0215459 A BR0215459 A BR 0215459A BR 0215459 A BR0215459 A BR 0215459A
- Authority
- BR
- Brazil
- Prior art keywords
- organic acid
- acid product
- contaminant
- strong
- immiscible basic
- Prior art date
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
Abstract
"PROCESSO PARA PURIFICAR áCIDOS ORGâNICOS, TAL COMO áCIDO LáCTICO". é descrito um processo para purificar uma corrente de alimentação aquosa compreendendo um produto ácido orgânico, tal como ácido láctico, e um contaminante forte, tal como ácido pirúvico ou ácido oxálico. A concentração molar do produto ácido orgânico na corrente de alimentação é tipicamente pelo menos 20 vezes maior do que a concentração molar do contaminante forte. A corrente de alimentação aquosa é contatada com um primeiro extrator básico imiscível que tem uma afinidade pelo menos 3 vezes maior pelo contaminante forte do que pelo produto ácido orgânico. A maior arte do contaminante forte e algum produto ácido orgânico torna-se complexada com o primeiro extrator básico imiscível. O primeiro extrator básico imiscível complexado é separado da corrente aquosa, produzindo assim uma corrente de primeiro efluente que compreende produto ácido orgânico e que tem uma relação de produto ácido orgânico molar para contaminante molar forte maior do que a da corrente de alimentação aquosa. O primeiro extrator básico imiscível complexado é contatado com um ácido deslocador. O primeiro extrator básico imiscível tem uma afinidade pelo ácido deslocador maior do que pelo contaminante forte ou pelo produto ácido orgânico e, como resultado, o produto ácido orgânico e o contaminante forte são deslocados durante um período de tempo do primeiro extrator básico imiscível complexado, produzindo uma corrente de segundo efluente que compreende uma quantidade maior de produto ácido orgânico e uma corrente de terceiro efluente que compreende uma quantidade maior de contaminante forte."PROCESS TO PURIFY ORGANIC ACIDS, LIKE LACTIC ACID". A process for purifying an aqueous feed stream comprising an organic acid product such as lactic acid and a strong contaminant such as pyruvic acid or oxalic acid is described. The molar concentration of the organic acid product in the feed stream is typically at least 20 times greater than the molar concentration of the strong contaminant. The aqueous feed stream is contacted with a first immiscible basic extractor that has at least 3 times greater affinity for the strong contaminant than for the organic acid product. The greatest art of strong contaminant and some organic acid product becomes complex with the first immiscible basic extractor. The first complex immiscible basic extractor is separated from the aqueous stream, thereby producing a first effluent stream comprising organic acid product and having a higher molar organic acid to strong molar contaminant ratio than that of the aqueous feed stream. The first complex immiscible basic extractor is contacted with a displacer acid. The first immiscible basic extractor has a greater affinity for the displacer acid than for the strong contaminant or organic acid product and, as a result, the organic acid product and the strong contaminant are displaced over a period of time from the first complex immiscible basic extractor, producing a second effluent stream comprising a larger amount of organic acid product and a third effluent stream comprising a larger amount of strong contaminant.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/037,664 US6641734B2 (en) | 2002-01-03 | 2002-01-03 | Process for purifying an organic acid |
US10/295,970 US6942803B2 (en) | 2002-01-03 | 2002-11-15 | Process for purifying an organic acid |
PCT/US2002/039620 WO2003059863A1 (en) | 2002-01-03 | 2002-12-11 | Process for puriying an organic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0215459A true BR0215459A (en) | 2005-04-05 |
Family
ID=26714362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0215459-5A BR0215459A (en) | 2002-01-03 | 2002-12-11 | Process for purifying organic acids such as lactic acid |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1470099A4 (en) |
CN (1) | CN1289459C (en) |
AU (1) | AU2002362143A1 (en) |
BR (1) | BR0215459A (en) |
CA (1) | CA2470978A1 (en) |
WO (1) | WO2003059863A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010139527A2 (en) * | 2009-06-05 | 2010-12-09 | Evonik Degussa Gmbh | A method for the preparation of 2-keto carboxylic acid |
CN102659563B (en) * | 2012-03-06 | 2014-09-17 | 河南金丹乳酸科技股份有限公司 | Organic extraction phase for extracting lactic acid from heavy phase lactic acid |
CN102643191B (en) * | 2012-03-28 | 2014-08-06 | 河南金丹乳酸科技股份有限公司 | Heavy phase lactic acid processing technology |
CN102701950B (en) * | 2012-05-30 | 2014-08-06 | 河南金丹乳酸科技股份有限公司 | Method for continuously producing lactate by utilizing heavy phase lactic acid |
JP5890905B2 (en) * | 2012-07-23 | 2016-03-22 | 旭硝子株式会社 | Method for producing organic acid |
CN103494850B (en) * | 2013-07-24 | 2015-07-15 | 成都中医药大学 | Process for extracting and purifying total organic acid of aralia cordata |
CN108947066A (en) * | 2018-07-13 | 2018-12-07 | 宁波永顺精细化工有限公司 | The recovery method of carboxylic acid and barium salt in carboxylic acid barium waste water |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2568095A (en) * | 1949-04-29 | 1951-09-18 | Standard Oil Co | Recovery of organic acids with an amine solvent |
US4076948A (en) * | 1968-10-10 | 1978-02-28 | El Paso Products Company | Process for treatment of adipic acid mother liquor |
IL39710A (en) * | 1972-06-19 | 1975-04-25 | Imi Inst For Res & Dev | Recovery of acids from aqueous solutions by solvent extraction |
IL57024A (en) * | 1979-04-09 | 1982-03-31 | Yissum Appl Eng Syst | Process for the separation of a strong mineral acid from an aqueous solution |
US5068419A (en) * | 1986-12-18 | 1991-11-26 | Uop | Separation of an organic acid from a fermentation broth with an anionic polymeric adsorbent |
US5786185A (en) * | 1991-09-13 | 1998-07-28 | Reilly Industries, Inc. | Process for producing and recovering lactic acid |
US6111137A (en) * | 1996-12-20 | 2000-08-29 | Mitsui Chemicals, Inc. | Purification process of lactic acid |
US5986133A (en) * | 1997-06-30 | 1999-11-16 | The Texas A&M University System | Recovery of fermentation salts from dilute aqueous solutions |
US6509179B1 (en) * | 2000-10-12 | 2003-01-21 | Barbara I. Veldhuis-Stribos | Continuous process for preparing lactic acid |
-
2002
- 2002-12-11 AU AU2002362143A patent/AU2002362143A1/en not_active Abandoned
- 2002-12-11 WO PCT/US2002/039620 patent/WO2003059863A1/en not_active Application Discontinuation
- 2002-12-11 BR BR0215459-5A patent/BR0215459A/en not_active IP Right Cessation
- 2002-12-11 EP EP02797276A patent/EP1470099A4/en not_active Withdrawn
- 2002-12-11 CA CA002470978A patent/CA2470978A1/en not_active Abandoned
- 2002-12-11 CN CN02826698.6A patent/CN1289459C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1470099A1 (en) | 2004-10-27 |
CN1289459C (en) | 2006-12-13 |
CN1612851A (en) | 2005-05-04 |
WO2003059863A1 (en) | 2003-07-24 |
CA2470978A1 (en) | 2003-07-24 |
EP1470099A4 (en) | 2006-04-12 |
AU2002362143A1 (en) | 2003-07-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B25D | Requested change of name of applicant approved |
Owner name: TATE AND LYLE INGREDIENTS AMERICAS, INC. (US) Free format text: ALTERADO DE: A.E. STALEY MANUFACTURING CO. |
|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE 8A. ANUIDADE(S). |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2108 DE 31/05/2011. |