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WO1997015545A1 - Procede de purification et de concentration de l'acide citrique - Google Patents

Procede de purification et de concentration de l'acide citrique Download PDF

Info

Publication number
WO1997015545A1
WO1997015545A1 PCT/SK1996/000015 SK9600015W WO9715545A1 WO 1997015545 A1 WO1997015545 A1 WO 1997015545A1 SK 9600015 W SK9600015 W SK 9600015W WO 9715545 A1 WO9715545 A1 WO 9715545A1
Authority
WO
WIPO (PCT)
Prior art keywords
stage
weight parts
permeate
citnc
acid
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/SK1996/000015
Other languages
English (en)
Inventor
Viliam VIS^¿ACKY
Peter MICHALÍK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIKOSPOL SRO
Original Assignee
LIKOSPOL SRO
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 LIKOSPOL SRO filed Critical LIKOSPOL SRO
Priority to AU73573/96A priority Critical patent/AU7357396A/en
Publication of WO1997015545A1 publication Critical patent/WO1997015545A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Definitions

  • the invention relates to a method for cit ⁇ c acid purification and concentration of cit ⁇ c- hquors from citric acid fermentation
  • cit ⁇ c-hquor is used for solution obtained after fermentation at citnc acid production
  • citnc- quors contam except for 10 to 20 % w/w of water and organic acids also proteins in amount of 0 1 to 1 % w/w and reducing sugars in amount of 0 5 to 5 % w/w from which the compounds are formed at mcreased temperature e g 60° C in evaporator, assigned as readily carbonisable substances
  • the presence of these substances in product serves as an indicator of citnc acid punty
  • Permeate from the second stage is divided to three technological flows according to residual content of citnc acid Technological flow with content of 0 01 to 1 % w/w of citnc acid may be used as a source of water for fermentation Technological flow with content of 1 to 10 % w/w of citnc acid may be used for washing out the citnc acid residue from concentrate at pre-treatment/diafiltration/, while the permeate from diafiitration enters again nanofiltration Technological flow with content of 10 to 20 % w/w is returned for nanofiltration
  • Concentration and pu ⁇ fication of citnc acid from citnc-hquors obtained after citnc acid fermentation by nanofiltration through polymenc membranes may be performed regarding to different permeability and selectivity towards the compounds in citnc-hquors Exactly expressed, the pu ⁇ fication effect is provided by higher selectivity of membranes towards citric acid as to reducing sugars In this way both separation effect and concentration effect are secured
  • the claims for energy consumption are twenty time lower regarding to different energy consumption at water separation by classical method - evaporator
  • the method according to the invention represents an economic solution of the part of technology for citnc acid production, considered for an important product assigned especially for food and pharmaceutical industry

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)

Abstract

Des liqueurs d'acide citrique qui constituent une solution d'acide citrique après fermentation subissent une nanofiltration en deux phases sur des membranes polymères. Dans la première phase, la nanofiltration est exécutée sur des membranes polymères dont le seuil d'arrêt nominal de poids moléculaire est de 10 000 à 20 000 daltons et, dans la deuxième phase, sur des membranes polymères dont le seuil d'arrêt nominal de poids moléculaire est de 200 à 400 daltons. Le produit concentré ainsi obtenu après la deuxième phase subit une cristallisation appropriée et le perméat est recyclé dans des étapes particulières de processus techniques.
PCT/SK1996/000015 1995-10-27 1996-10-25 Procede de purification et de concentration de l'acide citrique Ceased WO1997015545A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU73573/96A AU7357396A (en) 1995-10-27 1996-10-25 Method of citric acid purification and concentration

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SK1348-95A SK279219B6 (sk) 1995-10-27 1995-10-27 Spôsob koncentračnej purifikácie kyseliny citrónov
SKPV1348-95 1995-10-27

Publications (1)

Publication Number Publication Date
WO1997015545A1 true WO1997015545A1 (fr) 1997-05-01

Family

ID=20434466

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SK1996/000015 Ceased WO1997015545A1 (fr) 1995-10-27 1996-10-25 Procede de purification et de concentration de l'acide citrique

Country Status (4)

Country Link
AU (1) AU7357396A (fr)
CZ (1) CZ111698A3 (fr)
SK (1) SK279219B6 (fr)
WO (1) WO1997015545A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105152912A (zh) * 2015-07-15 2015-12-16 潍坊英轩实业有限公司 一种柠檬酸发酵液预处理方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1494414A (en) * 1974-10-25 1977-12-07 Benckiser Gmbh Joh A Process for separating citrate or citric acid in aqueous solutions
EP0151470A2 (fr) * 1984-02-03 1985-08-14 Jungbunzlauer Ladenburg GmbH Procédé d'obtention d'acide citrique
EP0479084A2 (fr) * 1990-10-05 1992-04-08 HAARMANN & REIMER CORP. Procédé de production d'acide citrique granulé et ses sels
US5492625A (en) * 1994-04-07 1996-02-20 Glitsch, Inc. Method of recovering carboxylic acids from dilute solutions
WO1996008459A1 (fr) * 1994-09-12 1996-03-21 Aeci Limited Procede pour recuperer l'acide citrique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1494414A (en) * 1974-10-25 1977-12-07 Benckiser Gmbh Joh A Process for separating citrate or citric acid in aqueous solutions
EP0151470A2 (fr) * 1984-02-03 1985-08-14 Jungbunzlauer Ladenburg GmbH Procédé d'obtention d'acide citrique
EP0479084A2 (fr) * 1990-10-05 1992-04-08 HAARMANN & REIMER CORP. Procédé de production d'acide citrique granulé et ses sels
US5492625A (en) * 1994-04-07 1996-02-20 Glitsch, Inc. Method of recovering carboxylic acids from dilute solutions
WO1996008459A1 (fr) * 1994-09-12 1996-03-21 Aeci Limited Procede pour recuperer l'acide citrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105152912A (zh) * 2015-07-15 2015-12-16 潍坊英轩实业有限公司 一种柠檬酸发酵液预处理方法

Also Published As

Publication number Publication date
SK279219B6 (sk) 1998-08-05
CZ111698A3 (cs) 1998-07-15
AU7357396A (en) 1997-05-15
SK134895A3 (en) 1997-06-04

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