ATE92460T1 - 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
- ATE92460T1 ATE92460T1 AT89401529T AT89401529T ATE92460T1 AT E92460 T1 ATE92460 T1 AT E92460T1 AT 89401529 T AT89401529 T AT 89401529T AT 89401529 T AT89401529 T AT 89401529T AT E92460 T1 ATE92460 T1 AT E92460T1
- Authority
- AT
- Austria
- Prior art keywords
- citric acid
- liquids containing
- stage
- recovering citric
- liquor containing
- Prior art date
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
- C07C51/47—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)
Applications Claiming Priority (2)
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 |
EP89401529A EP0346196B1 (de) | 1988-06-06 | 1989-06-02 | Verfahren zur Rückgewinnung der Zitronensäure aus Flüssigkeiten, die sie enthalten |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE92460T1 true ATE92460T1 (de) | 1993-08-15 |
Family
ID=9366977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT89401529T ATE92460T1 (de) | 1988-06-06 | 1989-06-02 | Verfahren zur rueckgewinnung der zitronensaeure aus fluessigkeiten, 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)
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 |
AR014989A1 (es) | 1998-04-15 | 2001-04-11 | Reilly Ind Inc | Separaciones usando polimeros anfoliticos |
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)
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 AT AT89401529T patent/ATE92460T1/de not_active IP Right Cessation
- 1989-06-02 EP EP89401529A patent/EP0346196B1/de not_active Expired - Lifetime
- 1989-06-02 DE DE89401529T patent/DE68908024T2/de not_active Expired - Fee Related
- 1989-06-02 ES ES198989401529T patent/ES2042027T3/es not_active Expired - Lifetime
- 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 |
---|---|
FR2632302A1 (fr) | 1989-12-08 |
EP0346196A1 (de) | 1989-12-13 |
JPH02275835A (ja) | 1990-11-09 |
IE64034B1 (en) | 1995-06-28 |
US5032686A (en) | 1991-07-16 |
DE68908024T2 (de) | 1994-02-17 |
IE891817L (en) | 1989-12-06 |
FR2632302B1 (fr) | 1991-02-22 |
ES2042027T3 (es) | 1993-12-01 |
DE68908024D1 (de) | 1993-09-09 |
EP0346196B1 (de) | 1993-08-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee |