DE68909573D1 - Verfahren zur gewinnung von milchsaeure aus loesungen, die sie enthalten. - Google Patents

Verfahren zur gewinnung von milchsaeure aus loesungen, die sie enthalten.

Info

Publication number
DE68909573D1
DE68909573D1 DE89313557T DE68909573T DE68909573D1 DE 68909573 D1 DE68909573 D1 DE 68909573D1 DE 89313557 T DE89313557 T DE 89313557T DE 68909573 T DE68909573 T DE 68909573T DE 68909573 D1 DE68909573 D1 DE 68909573D1
Authority
DE
Germany
Prior art keywords
lactic acid
aqueous
organic
octol
complexing agent
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.)
Expired - Fee Related
Application number
DE89313557T
Other languages
English (en)
Other versions
DE68909573T2 (de
Inventor
Enrico Dalcanale
Stefanio Bonsignore
Vosel Annick Du
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.)
Istituto Guido Donegani SpA
Original Assignee
Istituto Guido Donegani SpA
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 Istituto Guido Donegani SpA filed Critical Istituto Guido Donegani SpA
Publication of DE68909573D1 publication Critical patent/DE68909573D1/de
Application granted granted Critical
Publication of DE68909573T2 publication Critical patent/DE68909573T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • 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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Compounds Of Unknown Constitution (AREA)
DE89313557T 1988-12-22 1989-12-22 Verfahren zur Gewinnung von Milchsäure aus Lösungen, die sie enthalten. Expired - Fee Related DE68909573T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8823057A IT1227895B (it) 1988-12-22 1988-12-22 Processo per il recupero di acido lattico da soluzioni che lo contengono

Publications (2)

Publication Number Publication Date
DE68909573D1 true DE68909573D1 (de) 1993-11-04
DE68909573T2 DE68909573T2 (de) 1994-01-27

Family

ID=11203327

Family Applications (1)

Application Number Title Priority Date Filing Date
DE89313557T Expired - Fee Related DE68909573T2 (de) 1988-12-22 1989-12-22 Verfahren zur Gewinnung von Milchsäure aus Lösungen, die sie enthalten.

Country Status (15)

Country Link
US (1) US5089664A (de)
EP (1) EP0375463B1 (de)
JP (1) JPH02221243A (de)
AT (1) ATE95160T1 (de)
AU (1) AU623719B2 (de)
BR (1) BR8906651A (de)
CA (1) CA2005921A1 (de)
DE (1) DE68909573T2 (de)
ES (1) ES2045477T3 (de)
HU (1) HU202816B (de)
IL (1) IL92806A0 (de)
IT (1) IT1227895B (de)
NO (1) NO171846C (de)
SU (1) SU1836326A3 (de)
ZA (1) ZA899741B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5426219A (en) * 1993-07-26 1995-06-20 A.E. Staley Manufacturing Co. Process for recovering organic acids
US5766439A (en) * 1996-10-10 1998-06-16 A. E. Staley Manufacturing Co. Production and recovery of organic acids
US6153791A (en) * 1999-08-02 2000-11-28 Archer-Daniels-Midland Company Process for purifying 2-keto-L-gulonic acid
US6509179B1 (en) 2000-10-12 2003-01-21 Barbara I. Veldhuis-Stribos Continuous process for preparing lactic acid
JP5526154B2 (ja) 2009-02-25 2014-06-18 カウンシル・オヴ・サイエンティフィック・アンド・インダストリアル・リサーチ 脱酸用ポリベンゾイミダゾール系膜
US8859808B2 (en) 2010-08-19 2014-10-14 Paulo Yoshida Method for obtaining lactic acid with a high degree of purity from fermentative liquor
WO2012021956A1 (pt) * 2010-08-19 2012-02-23 Companhia Refinadora Da Amazônia Processo de obtenção de ácido lático com elevado grau de pureza a partir de licor fermentativo
CN102659563B (zh) * 2012-03-06 2014-09-17 河南金丹乳酸科技股份有限公司 从重相乳酸中提取乳酸的有机萃取相
CN102643191B (zh) * 2012-03-28 2014-08-06 河南金丹乳酸科技股份有限公司 重相乳酸处理工艺
RU2675823C2 (ru) * 2013-09-06 2018-12-25 Торэй Индастриз, Инк. Способ получения молочной кислоты и полимолочной кислоты

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1906068A (en) * 1931-03-02 1933-04-25 Grasselli Chemical Co Lactic acid
US2092494A (en) * 1933-12-09 1937-09-07 Dow Chemical Co Purification of alpha-hydroxy-aliphatic acids
DE1468126A1 (de) * 1962-04-26 1968-12-05 Knapsack Ag Verfahren zur kontinuierlichen Gewinnung,Reinigung und Isolierung von Milchsaeure
US3980702A (en) * 1974-05-06 1976-09-14 The Dow Chemical Company Extraction of carboxylic acids from dilute aqueous solutions
DE3415141A1 (de) * 1984-04-21 1985-10-31 Basf Ag, 6700 Ludwigshafen Verfahren zur isolierung von milchsaeure aus feststoffhaltigen waessrigen loesungen

Also Published As

Publication number Publication date
IT8823057A0 (it) 1988-12-22
NO171846C (no) 1993-05-12
NO171846B (no) 1993-02-01
EP0375463A1 (de) 1990-06-27
NO895197L (no) 1990-06-25
EP0375463B1 (de) 1993-09-29
HU896724D0 (en) 1990-03-28
NO895197D0 (no) 1989-12-21
HUT52748A (en) 1990-08-28
JPH02221243A (ja) 1990-09-04
BR8906651A (pt) 1990-09-11
IT1227895B (it) 1991-05-14
AU4710889A (en) 1990-06-28
CA2005921A1 (en) 1990-06-22
HU202816B (en) 1991-04-29
ZA899741B (en) 1990-09-26
US5089664A (en) 1992-02-18
SU1836326A3 (en) 1993-08-23
ES2045477T3 (es) 1994-01-16
DE68909573T2 (de) 1994-01-27
ATE95160T1 (de) 1993-10-15
AU623719B2 (en) 1992-05-21
IL92806A0 (en) 1990-09-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee