GB1501823A - Process for isolating anhydrous and hydrogen peroxide-free organic solutions of percarboxylic acids - Google Patents
Process for isolating anhydrous and hydrogen peroxide-free organic solutions of percarboxylic acidsInfo
- Publication number
- GB1501823A GB1501823A GB1717576A GB1717576A GB1501823A GB 1501823 A GB1501823 A GB 1501823A GB 1717576 A GB1717576 A GB 1717576A GB 1717576 A GB1717576 A GB 1717576A GB 1501823 A GB1501823 A GB 1501823A
- Authority
- GB
- United Kingdom
- Prior art keywords
- percarboxylic
- water
- distillation
- solution
- free organic
- 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
- C07C407/00—Preparation of peroxy compounds
- C07C407/003—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1501823 Purification of percarboxylic acids BAYER AG and DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 28 April 1976 [30 April 1975] 17175/76 Heading C2C Percarboxylic acid solutions in organic solvents, which are capable of forming azeotropes minimum-boiling with water, having a b.pt. lower than that of the percarboxylic acid, are simultaneously freed of water and H 2 O 2 by distilling the solution so that at least 1À5 times the amount of organic solvent which is required for the removal of the water content of the solution as an azeotrope is vaporized and withdrawn as the top product which is separated into an aqueous phase containing H 2 O 2 and a phase which contains the organic solvent, and returning the latter as reflux to the distillation, a substantially anhydrous and H 2 O 2 -free organic solution of the percarboxylic being obtained as the sump product from the distillation. Preferably 1À5-40 times the required amount of solvent is removed in the distillation which may be conducted under a pressure of 100-400 mm.Hg. The process is advantageously used to purify benzene solutions of 15-25 wt. per cent percarboxylic acid, e.g. perpropionic acid, with 0À5-5 wt. per cent of both water and H 2 O 2 .
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752519296 DE2519296B2 (en) | 1975-04-30 | 1975-04-30 | Process for the simultaneous removal of water and hydrogen peroxide from organic solutions of percarboxylic acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1501823A true GB1501823A (en) | 1978-02-22 |
Family
ID=5945449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1717576A Expired GB1501823A (en) | 1975-04-30 | 1976-04-28 | Process for isolating anhydrous and hydrogen peroxide-free organic solutions of percarboxylic acids |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE841206A (en) |
| DE (1) | DE2519296B2 (en) |
| GB (1) | GB1501823A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2856665A1 (en) * | 1978-12-29 | 1980-07-17 | Bayer Ag | METHOD FOR PRODUCING PERCARBONIC ACID SOLUTIONS |
| DE3638552A1 (en) * | 1986-11-12 | 1988-05-26 | Benckiser Gmbh Joh A | Apparatus for preparing and metering peroxo-acids |
-
1975
- 1975-04-30 DE DE19752519296 patent/DE2519296B2/en not_active Withdrawn
-
1976
- 1976-04-28 BE BE2054989A patent/BE841206A/en not_active IP Right Cessation
- 1976-04-28 GB GB1717576A patent/GB1501823A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2519296A1 (en) | 1976-11-11 |
| BE841206A (en) | 1976-10-28 |
| DE2519296B2 (en) | 1979-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3433831A (en) | Separation and purification of acrylic acid from acetic acid by solvent extraction and azeotropic distillation with a two component solvent-entrainer system | |
| MX9600930A (en) | Process for purifying acetic acid. | |
| US4019965A (en) | Separation of phenol, cyclohexanone, and cyclohexylbenzene containing mixtures employing dialkyl and dicycloalkyl phthalates | |
| US2922815A (en) | Concentration of aqueous acrylic acid | |
| IE38656B1 (en) | A process for the production of percarboxylic acid solutions in organic solvents | |
| US4551208A (en) | Recovery of formic acid by distillation | |
| GB732800A (en) | Purification of acrylates by distillation | |
| IE43099L (en) | Process for the preparation of anhydrous percarboxylic acid¹solutions in benzene. | |
| ES447408A1 (en) | Process for the preparation of organic solutions of percarboxylic acids | |
| GB1501823A (en) | Process for isolating anhydrous and hydrogen peroxide-free organic solutions of percarboxylic acids | |
| ES8101064A1 (en) | Process for the purification of olefin oxides. | |
| ES426753A1 (en) | Purification of phosophoric acid by means of organic solvents | |
| JP2582127B2 (en) | Purification method of methyl methacrylate | |
| JP2924563B2 (en) | Purification method of ethyl acetate | |
| GB1018003A (en) | Method of recovering ammonia | |
| GB1495481A (en) | Process for the obtaining of isobutylene of high purity | |
| US3878058A (en) | Recovery of alkylvinylether by extractive distillation of a feed containing only trace amounts of water | |
| GB1397659A (en) | Process for preparing glycidol | |
| US4904821A (en) | Method of preparing peracetic acid | |
| SU437269A1 (en) | The method of separation of acetic acid from an aqueous solution | |
| KR840002806A (en) | Progressive Preparation of Carboxylic Acids | |
| KR960006664B1 (en) | Process for the extractive separation of a carboxylic acid from an aqueous solution of the said acid | |
| ES8106476A1 (en) | Process for the recovery of carboxylic acids from mixtures containing glycol esters derived from these acids. | |
| JPH03181440A (en) | Purification of acrylic acid by distillation | |
| ES395270A1 (en) | Handling of raffinates from wet phosphoric acid purification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |