BR0208249A - Processo para obtenção de um ácido orgânico a partir de um sal de amÈnio de ácido orgânico, de amida de ácido orgânico, ou de um complexo de alquilamina/ácido orgânico - Google Patents

Processo para obtenção de um ácido orgânico a partir de um sal de amÈnio de ácido orgânico, de amida de ácido orgânico, ou de um complexo de alquilamina/ácido orgânico

Info

Publication number
BR0208249A
BR0208249A BR0208249-7A BR0208249A BR0208249A BR 0208249 A BR0208249 A BR 0208249A BR 0208249 A BR0208249 A BR 0208249A BR 0208249 A BR0208249 A BR 0208249A
Authority
BR
Brazil
Prior art keywords
organic acid
stream
ammonium salt
phase
azeotrope
Prior art date
Application number
BR0208249-7A
Other languages
English (en)
Inventor
Michael Charles Milner Cockrem
Istvan Kovacs
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
Application filed by Staley Mfg Co A E filed Critical Staley Mfg Co A E
Publication of BR0208249A publication Critical patent/BR0208249A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C235/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms
    • C07C235/02—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton
    • C07C235/04—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C235/06—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton being acyclic and saturated having the nitrogen atoms of the carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/36—Azeotropic distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C231/00—Preparation of carboxylic acid amides
    • C07C231/22—Separation; Purification; Stabilisation; Use of additives
    • C07C231/24—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/02—Preparation of carboxylic acids or their salts, halides or anhydrides from salts of carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/06—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid amides
    • 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
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • C07C51/46—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S516/00—Colloid systems and wetting agents; subcombinations thereof; processes of
    • Y10S516/01—Wetting, emulsifying, dispersing, or stabilizing agents
    • Y10S516/07—Organic amine, amide, or n-base containing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

"PROCESSO PARA OBTENçãO DE UM áCIDO ORGâNICO A PARTIR DE UM SAL DE AMÈNIO DE áCIDO ORGâNICO, DE AMIDA DE áCIDO ORGâNICO, OU DE UM COMPLEXO DP ALQUILAMINA/áCIDO ORGâNICO". Divulgam-se aqui métodos para a recuperação de um ácido orgânico, tal como ácido lático termoestável, a partir de uma corrente de alimentação compreendendo pelo menos um dentre uma amida de ácido orgânico, um sal de amónio de ácido orgânico, ou um complexo de alquilamina/ácido orgânico. A corrente de alimentação que compreende a amida de ácido orgânico, o sal de amónio de ácido orgânico, ou o complexo de alquilamina/ácido orgânico é misturada com pelo menos um agente azeotrópico. O agente azeotrópico é um hidrocarboneto capaz de formar pelo menos um azeótropo com o ácido orgânico que é produzido pela decomposição térmica da amida, sal de amónio, ou complexo na corrente de alimentação. Preferivelmente o azeótropo é um heteroazeótropo. A mistura compreendendo a corrente de alimentação e o agente azeotrópico é aquecida produzindo uma corrente de vapor que compreende o azeótropo. A corrente de vapor pode ser condensada até uma corrente líquida, e o ácido orgânico é recuperado na corrente líquida que é produzida. Quando o azeótropo compreendendo o ácido orgânico é um heteroazeótropo, a corrente de vapor pode ser condensada numa corrente líquida, que pode ser separada numa primeira fase e numa segunda fase. A primeira fase contém a concentração máxima de ácido orgânico e a segunda fase compreende o agente azeotrópico. O ácido orgânico pode ser purificado e/ou concentrado adicionalmente a partir da primeira fase separada ou a partir da corrente líquida.
BR0208249-7A 2001-03-15 2002-03-06 Processo para obtenção de um ácido orgânico a partir de um sal de amÈnio de ácido orgânico, de amida de ácido orgânico, ou de um complexo de alquilamina/ácido orgânico BR0208249A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/809,243 US6926810B2 (en) 2001-03-15 2001-03-15 Process for obtaining an organic acid from an organic acid ammonium salt, an organic acid amide, or an alkylamine organic acid complex
PCT/US2002/006924 WO2002074403A1 (en) 2001-03-15 2002-03-06 Process for obtaining an organic acid from an organic acid ammonium salt, an organic acid amide, or an alkylamine organic acid complex

Publications (1)

Publication Number Publication Date
BR0208249A true BR0208249A (pt) 2004-09-14

Family

ID=25200866

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0208249-7A BR0208249A (pt) 2001-03-15 2002-03-06 Processo para obtenção de um ácido orgânico a partir de um sal de amÈnio de ácido orgânico, de amida de ácido orgânico, ou de um complexo de alquilamina/ácido orgânico

Country Status (9)

Country Link
US (1) US6926810B2 (pt)
EP (1) EP1385593B1 (pt)
CN (1) CN1282494C (pt)
AT (1) ATE335528T1 (pt)
BR (1) BR0208249A (pt)
CA (1) CA2440987A1 (pt)
DE (1) DE60213778T2 (pt)
ES (1) ES2269740T3 (pt)
WO (1) WO2002074403A1 (pt)

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WO2009117317A1 (en) * 2008-03-20 2009-09-24 Tate & Lyle Technology Ltd Removal of acids from tertiary amide solvents
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DE102009009580A1 (de) 2009-02-19 2010-08-26 Evonik Degussa Gmbh Verfahren zur Herstellung freier Säuren aus ihren Salzen
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Also Published As

Publication number Publication date
US6926810B2 (en) 2005-08-09
CA2440987A1 (en) 2002-09-26
EP1385593A4 (en) 2004-08-11
DE60213778D1 (de) 2006-09-21
ES2269740T3 (es) 2007-04-01
CN1282494C (zh) 2006-11-01
DE60213778T2 (de) 2007-09-06
EP1385593A1 (en) 2004-02-04
CN1509197A (zh) 2004-06-30
US20030029711A1 (en) 2003-02-13
EP1385593B1 (en) 2006-08-09
ATE335528T1 (de) 2006-09-15
WO2002074403A1 (en) 2002-09-26

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Owner name: TATE AND LYLE INGREDIENTS AMERICAS, INC. (US)

Free format text: ALTERADO DE: A.E. STALEY MANUFACTURING CO.

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

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B09B Patent application refused [chapter 9.2 patent gazette]

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