GB877677A - Improvements in and relating to the oxidation of organic compounds - Google Patents
Improvements in and relating to the oxidation of organic compoundsInfo
- Publication number
- GB877677A GB877677A GB102859A GB102859A GB877677A GB 877677 A GB877677 A GB 877677A GB 102859 A GB102859 A GB 102859A GB 102859 A GB102859 A GB 102859A GB 877677 A GB877677 A GB 877677A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxidation
- xylene
- water
- reactor
- conducted
- 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
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
Abstract
In the production of an aromatic carboxylic acid by contacting an alkylated aromatic hydrocarbon, or a partially oxidised derivative thereof, with oxygen in the presence of manganese bromide and/or cobalt bromide as catalyst and of an aromatic carboxylic acid as solvent, the process is conducted in a reactor having walls of aluminium. The process is conducted in the absence of added water; and it is desirable for water, formed in the oxidation, to be removed as soon as possible. When there is a tendency for water to accumulate in the reactor, it is desirable to add additional cobalt and/or manganese, in the form of their acetates. The example relates to the corrosion rate of aluminium test-pieces during the oxidation of o-xylene, p-xylene and p-toluic acid, respectively, to give phthalic or terephthalic acid. Other compounds which may be oxidised by the process are:- toluene, cumene, m-xylene, benzyl alcohol, benzaldehyde, benzyl benzoate, and methyl p-toluate. Specification 845,038 is referred to.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB102859A GB877677A (en) | 1959-01-12 | 1959-01-12 | Improvements in and relating to the oxidation of organic compounds |
| ES0254766A ES254766A1 (en) | 1959-01-12 | 1960-01-05 | Improvements in and relating to the oxidation of organic compounds |
| BE586427A BE586427A (en) | 1959-01-12 | 1960-01-11 | Improvements to the oxidation of organic compounds |
| CH45560A CH381213A (en) | 1959-01-12 | 1960-01-12 | Process for the production of aromatic carboxylic acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB102859A GB877677A (en) | 1959-01-12 | 1959-01-12 | Improvements in and relating to the oxidation of organic compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB877677A true GB877677A (en) | 1961-09-20 |
Family
ID=9714889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB102859A Expired GB877677A (en) | 1959-01-12 | 1959-01-12 | Improvements in and relating to the oxidation of organic compounds |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE586427A (en) |
| CH (1) | CH381213A (en) |
| ES (1) | ES254766A1 (en) |
| GB (1) | GB877677A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3491144A (en) * | 1966-09-20 | 1970-01-20 | Standard Oil Co | Production of aromatic tricarboxylic acids having only two vicinal carboxylic acid groups |
-
1959
- 1959-01-12 GB GB102859A patent/GB877677A/en not_active Expired
-
1960
- 1960-01-05 ES ES0254766A patent/ES254766A1/en not_active Expired
- 1960-01-11 BE BE586427A patent/BE586427A/en unknown
- 1960-01-12 CH CH45560A patent/CH381213A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH381213A (en) | 1964-08-31 |
| ES254766A1 (en) | 1960-03-01 |
| BE586427A (en) | 1960-07-11 |
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