DE68908024D1 - Verfahren zur rueckgewinnung der zitronensaeure aus fluessigkeiten, die sie enthalten. - Google Patents

Verfahren zur rueckgewinnung der zitronensaeure aus fluessigkeiten, die sie enthalten.

Info

Publication number: DE68908024D1
Authority: DE; Germany
Prior art keywords: citric acid; recovery; liquids containing; stage; liquor containing
Prior art date: 1988-06-06
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

DE8989401529T

Other languages

English (en)

Other versions

DE68908024T2 (de

Inventor

Pierrick Duflot

Jean Bernard Leleu

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.)

Roquette Freres SA

Original Assignee

Roquette Freres SA

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.)

1988-06-06

Filing date

1989-06-02

Publication date

1993-09-09

1989-06-02 Application filed by Roquette Freres SA filed Critical Roquette Freres SA

1993-09-09 Publication of DE68908024D1 publication Critical patent/DE68908024D1/de

1994-02-17 Application granted granted Critical

1994-02-17 Publication of DE68908024T2 publication Critical patent/DE68908024T2/de

2009-06-03 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 title abstract 15
238000000034 method Methods 0.000 title abstract 2
238000011084 recovery Methods 0.000 title abstract 2
239000007788 liquid Substances 0.000 title 1
239000011347 resin Substances 0.000 abstract 2
229920005989 resin Polymers 0.000 abstract 2
125000002091 cationic group Chemical group 0.000 abstract 1
239000003795 chemical substances by application Substances 0.000 abstract 1
125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
238000001179 sorption measurement Methods 0.000 abstract 1

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
- C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption

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)
Treatment Of Liquids With Adsorbents In General (AREA)
Detergent Compositions (AREA)
Removal Of Specific Substances (AREA)

DE89401529T 1988-06-06 1989-06-02 Verfahren zur Rückgewinnung der Zitronensäure aus Flüssigkeiten, die sie enthalten. Expired - Fee Related DE68908024T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR8807505A FR2632302B1 (fr)	1988-06-06	1988-06-06	Procede de recuperation d'acide citrique a partir d'une liqueur en contenant

Publications (2)

Publication Number	Publication Date
DE68908024D1 true DE68908024D1 (de)	1993-09-09
DE68908024T2 DE68908024T2 (de)	1994-02-17

Family

ID=9366977

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE89401529T Expired - Fee Related DE68908024T2 (de)	1988-06-06	1989-06-02	Verfahren zur Rückgewinnung der Zitronensäure aus Flüssigkeiten, die sie enthalten.

Country Status (8)

Country	Link
US (1)	US5032686A (de)
EP (1)	EP0346196B1 (de)
JP (1)	JPH02275835A (de)
AT (1)	ATE92460T1 (de)
DE (1)	DE68908024T2 (de)
ES (1)	ES2042027T3 (de)
FR (1)	FR2632302B1 (de)
IE (1)	IE64034B1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
TW265331B (de) *	1991-03-14	1995-12-11	Reilly Ind Inc
US5237098A (en) *	1992-10-09	1993-08-17	Miles, Inc.	Production of citric acid and trisodium citrate from molasses
CA2126365C (en) *	1993-07-06	1999-08-24	Steven W. Felman	Recovery of citric acid from impure process streams by addition of strong acids and salts thereof
US5352825A (en) *	1993-07-06	1994-10-04	Hoarmann & Reimer Corp.	Recovery of organic acid salts from impure process streams by addition of bases
US5965028A (en) *	1994-09-12	1999-10-12	Reilly Industries, Inc.	Process for treating a liquid
US6146534A (en)	1996-08-19	2000-11-14	Reilly Industries, Inc.	Thermally-managed separation and dewatering processes for recovering acid products
DE19545303C1 (de) *	1995-12-05	1997-04-24	Metallgesellschaft Ag	Verfahren zur Herstellung einer organischen Säure
US6420439B1 (en)	1998-04-15	2002-07-16	Reilly Industries, Inc.	Crosslinked, non-swellable ampholytic base resins
US6153791A (en) *	1999-08-02	2000-11-28	Archer-Daniels-Midland Company	Process for purifying 2-keto-L-gulonic acid
US6872314B2 (en) *	2003-08-29	2005-03-29	Eastman Chemical Company	Dewatering process
US8864995B2 (en) *	2006-01-10	2014-10-21	Dupont Nutrition Biosciences Aps	Method for separating betaine
CN115894218B (zh) *	2022-10-26	2023-08-29	湖北兴福电子材料股份有限公司	一种电子级柠檬酸的多级纯化方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA688245A (en) *		1964-06-09	Miles Laboratories, Inc.	Purification of citric acid
GB868926A (en) *	1956-06-28	1961-05-25	Benckiser Gmbh Joh A	A method for the purification and concentration of carboxylic acids
FR1280940A (fr) *	1961-02-01	1962-01-08	Miles Lab	Procédé de purification de l'acide citrique
FR1290212A (fr) *	1961-02-27	1962-04-13	Melle Usines Sa	Procédé de décoloration et de purification de solutions impures d'acides organiques
FR2434796A1 (fr) *	1978-08-31	1980-03-28	Roquette Freres	Procede et installation de recuperation d'acides a-hydroxy- et a-amino-carboxyliques a partir de milieux sucres les contenant
US4720579A (en) *	1986-12-18	1988-01-19	Uop Inc.	Separation of citric acid from fermentation broth with a neutral polymeric adsorbent

1988
- 1988-06-06 FR FR8807505A patent/FR2632302B1/fr not_active Expired - Fee Related
1989
- 1989-06-02 EP EP89401529A patent/EP0346196B1/de not_active Expired - Lifetime
- 1989-06-02 ES ES198989401529T patent/ES2042027T3/es not_active Expired - Lifetime
- 1989-06-02 DE DE89401529T patent/DE68908024T2/de not_active Expired - Fee Related
- 1989-06-02 AT AT89401529T patent/ATE92460T1/de not_active IP Right Cessation
- 1989-06-05 US US07/361,043 patent/US5032686A/en not_active Expired - Lifetime
- 1989-06-06 JP JP1142306A patent/JPH02275835A/ja active Pending
- 1989-06-12 IE IE181789A patent/IE64034B1/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
ATE92460T1 (de)	1993-08-15
ES2042027T3 (es)	1993-12-01
EP0346196B1 (de)	1993-08-04
US5032686A (en)	1991-07-16
EP0346196A1 (de)	1989-12-13
DE68908024T2 (de)	1994-02-17
JPH02275835A (ja)	1990-11-09
FR2632302B1 (fr)	1991-02-22
FR2632302A1 (fr)	1989-12-08
IE891817L (en)	1989-12-06
IE64034B1 (en)	1995-06-28

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Legal Events

Date	Code	Title	Description
1994-09-01	8364	No opposition during term of opposition
2007-04-19	8339	Ceased/non-payment of the annual fee