GB831055A - Process for the production of water soluble acids having a dissociation constant of less than 10 from their sparingly soluble salts - Google Patents
Process for the production of water soluble acids having a dissociation constant of less than 10 from their sparingly soluble saltsInfo
- Publication number
- GB831055A GB831055A GB10212/57A GB1021257A GB831055A GB 831055 A GB831055 A GB 831055A GB 10212/57 A GB10212/57 A GB 10212/57A GB 1021257 A GB1021257 A GB 1021257A GB 831055 A GB831055 A GB 831055A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- exchanger
- salt
- dispersion
- dissociation constant
- 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
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
- C07C51/02—Preparation of carboxylic acids or their salts, halides or anhydrides from salts of carboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J47/00—Ion-exchange processes in general; Apparatus therefor
- B01J47/10—Ion-exchange processes in general; Apparatus therefor with moving ion-exchange material; with ion-exchange material in suspension or in fluidised-bed form
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/08—Preparation of carboxylic acids or their salts, halides or anhydrides from nitriles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
Water-soluble inorganic acids having a dissociation constant of less than 1 X 10-2.5 are prepared from their sparingly soluble salts by treating an aqueous dispersion of such a salt with an acid-cation exchange resin, the acid groups of which have a dissociation constant greater than that of the acid to be prepared, the individual granules of the ion-exchanger being moved relatively to one another and to the dispersion and running off the acid solution so obtained. The treatment may be effected in a slowly rotating drum filter or in a column of large diameter having an air delivery device working on the air-lift pump principle and fitted into the centre of the column. The salt concentration in the dispersion may amount up to 400 gms/litre. After the conversion of the salt to the free acid and removal of the resulting acid solution, the ion-exchanger may be washed, providing a wash liquor utilizable in forming more salt suspension. A suitable ion-exchanger is a cross-linked polystyrene having nuclear sulphonic acid groups. The invention also includes the preparation in the same manner, of organic water-soluble acids having a dissociation constant below 1 X 10-2.5 and examples of this preparation are given (see Group IV (b)).ALSO:Water-soluble organic acids having a dissociation constant of less than 1 X 10-2.5 are prepared from their sparingly soluble salts by treating an aqueous dispersion of such a salt with an acid cation-exchange resin, the acid groups of which have a dissociation-constant greater than that of the acid to be produced, the individual granules of the ion-exchanger being moved relatively to one another and to the dispersion and running off the acid solution so obtained. Suitably the exchanger granules are submitted to a whirling action which may be effected by using, as a reaction chamber, either a column of large diameter having an air delivery device working on the air-lift pump principle fitted into the centre of the column or a slowly rotating drum filter. The salt concentration in the dispersion to be treated may amount up to 400 gms/litre. After the conversion the acid solution is run off and the exchanger is then washed and the washing liquid may be used in preparing aqueous salt dispersions for subsequent batches. Finally the exchanger is regenerated preferably by means of hydrochloric acid. Examples describe the isolation of tartaric and citric acids from aqueous dispersions of crude tartar and calcium citrate respectively using a cross-linked polystyrene ion-exchanger having nuclear sulphonic acid groups. The recovery of lactic acid is also mentioned.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC12808A DE1014980B (en) | 1956-03-31 | 1956-03-31 | Process for the production of weakly dissociated acids from their poorly soluble salts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB831055A true GB831055A (en) | 1960-03-23 |
Family
ID=7015290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10212/57A Expired GB831055A (en) | 1956-03-31 | 1957-03-28 | Process for the production of water soluble acids having a dissociation constant of less than 10 from their sparingly soluble salts |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE556222A (en) |
| DE (1) | DE1014980B (en) |
| FR (1) | FR1169395A (en) |
| GB (1) | GB831055A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2937563A1 (en) * | 2008-10-23 | 2010-04-30 | Ge Energy Products France Snc | Treating organic phase non-miscible in water and containing metal compound, by mixing organic phase with aqueous phase comprising complexing agent, separating aqueous phase by liquid-liquid coalescence, and regenerating complexing agent |
| CN112010745A (en) * | 2020-07-30 | 2020-12-01 | 安徽皖晶生物科技有限公司 | Method for producing natural tartaric acid by using wine leftovers |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3514348A1 (en) * | 1985-04-20 | 1986-10-23 | Basf Ag, 6700 Ludwigshafen | METHOD FOR OBTAINING AQUEOUS SOLUTIONS OF ORGANIC ACIDS OR BASES FROM AQUEOUS SOLUTIONS OF THEIR SALTS |
-
0
- BE BE556222D patent/BE556222A/xx unknown
-
1956
- 1956-03-31 DE DEC12808A patent/DE1014980B/en active Pending
-
1957
- 1957-03-13 FR FR1169395D patent/FR1169395A/en not_active Expired
- 1957-03-28 GB GB10212/57A patent/GB831055A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2937563A1 (en) * | 2008-10-23 | 2010-04-30 | Ge Energy Products France Snc | Treating organic phase non-miscible in water and containing metal compound, by mixing organic phase with aqueous phase comprising complexing agent, separating aqueous phase by liquid-liquid coalescence, and regenerating complexing agent |
| CN112010745A (en) * | 2020-07-30 | 2020-12-01 | 安徽皖晶生物科技有限公司 | Method for producing natural tartaric acid by using wine leftovers |
| CN112010745B (en) * | 2020-07-30 | 2023-04-21 | 安徽皖晶生物科技有限公司 | Method for producing natural tartaric acid by using wine offal |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1169395A (en) | 1958-12-26 |
| DE1014980B (en) | 1957-09-05 |
| BE556222A (en) | 1900-01-01 |
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