BR0014510A - Processo para produção de uma solução de ácido láctico purificada - Google Patents

Processo para produção de uma solução de ácido láctico purificada

Info

Publication number
BR0014510A
BR0014510A BR0014510-6A BR0014510A BR0014510A BR 0014510 A BR0014510 A BR 0014510A BR 0014510 A BR0014510 A BR 0014510A BR 0014510 A BR0014510 A BR 0014510A
Authority
BR
Brazil
Prior art keywords
lactic acid
solution
amine
extractor
sulfuric acid
Prior art date
Application number
BR0014510-6A
Other languages
English (en)
Inventor
Joseph Mizrahi
Aharon M Eyal
Canari Riki
Betty Hazan
John N Starr
Original Assignee
Cargill Dow Llc
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 Dow Llc filed Critical Cargill Dow Llc
Publication of BR0014510A publication Critical patent/BR0014510A/pt

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
    • C07C51/41—Preparation of salts of carboxylic acids
    • C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
    • 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)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)

Abstract

"PROCESSO PARA PRODUçãO DE UMA SOLUçãO DE áCIDO LáCTICO PURIFICADA". A presente revelação providencia um processo para o preparo de uma solução de ácido láctico purificada adequada para uso juntamente com uma fonte de material de lactato com um pH na faixa de 0,8 a 9,0. O processo inclui as etapas de providenciar uma fonte e material de lactato que inclui um sal de cálcio; acidular o caldo concentrado com ácido sulfúrico para formar uma solução acidulada que inclui ácido láctico e sulfato de cálcio; reduzir uma quantidade do sulfato de cálcio da solução acidulada; extrair a solução acidulada com um extrator contendo amina'para formar um solvente carregado; e extrair de volta o solvente carregado com um solvente aquoso para dar uma solução purificada de ácido láctico. opcionalmente, a fonte de material de lactato pode ser concentrada antes da etapa de acidulação. Alternativamente o extrator contendo amina pode incluir ânion sulfato. O ânion sulfúrico no extrator contendo amina pode ser ácido sulfúrico residual da etapa de acidulação. Alternativamente, o ácido sulfúrico no extrator contendo amina pode ser adicionado durante a etapa de extração, como ácido sulfúrico, por exemplo.
BR0014510-6A 1999-10-04 2000-10-03 Processo para produção de uma solução de ácido láctico purificada BR0014510A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/412,085 US20020102672A1 (en) 1999-10-04 1999-10-04 Process for producing a purified lactic acid solution
PCT/US2000/027200 WO2001025180A1 (en) 1999-10-04 2000-10-03 Process for producing a purified lactic acid solution

Publications (1)

Publication Number Publication Date
BR0014510A true BR0014510A (pt) 2002-06-11

Family

ID=23631553

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0014510-6A BR0014510A (pt) 1999-10-04 2000-10-03 Processo para produção de uma solução de ácido láctico purificada

Country Status (10)

Country Link
US (2) US20020102672A1 (pt)
EP (1) EP1220828A1 (pt)
JP (1) JP2003511360A (pt)
KR (1) KR20020040833A (pt)
CN (1) CN1174953C (pt)
AU (1) AU1190601A (pt)
BR (1) BR0014510A (pt)
HK (1) HK1048985B (pt)
WO (1) WO2001025180A1 (pt)
ZA (1) ZA200203508B (pt)

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Also Published As

Publication number Publication date
US20030004375A1 (en) 2003-01-02
US7026145B2 (en) 2006-04-11
AU1190601A (en) 2001-05-10
US20020102672A1 (en) 2002-08-01
ZA200203508B (en) 2003-07-30
HK1048985B (zh) 2005-09-02
CN1174953C (zh) 2004-11-10
KR20020040833A (ko) 2002-05-30
EP1220828A1 (en) 2002-07-10
CN1377335A (zh) 2002-10-30
WO2001025180A1 (en) 2001-04-12
HK1048985A1 (en) 2003-04-25
JP2003511360A (ja) 2003-03-25

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