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BR0215459A - Process for purifying organic acids such as lactic acid - Google Patents

Process for purifying organic acids such as lactic acid

Info

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
Application number
BR0215459-5A
Other languages
Portuguese (pt)
Inventor
Michael Charles Milner Cockrem
Istvan Kovacs
Idris Mohamednur
David Heidel
Avraham M Baniel
Original Assignee
Staley Mfg Co A E
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
Priority claimed from US10/037,664 external-priority patent/US6641734B2/en
Application filed by Staley Mfg Co A E filed Critical Staley Mfg Co A E
Publication of BR0215459A publication Critical patent/BR0215459A/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

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)

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.

BR0215459-5A 2002-01-03 2002-12-11 Process for purifying organic acids such as lactic acid BR0215459A (en)

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)

* Cited by examiner, † Cited by third party
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
WO2014017327A1 (en) * 2012-07-23 2014-01-30 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
AU2002362143A1 (en) 2003-07-30
EP1470099A4 (en) 2006-04-12
CN1289459C (en) 2006-12-13
WO2003059863A1 (en) 2003-07-24
EP1470099A1 (en) 2004-10-27
CN1612851A (en) 2005-05-04
CA2470978A1 (en) 2003-07-24

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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.