ES254766A1 - Improvements in and relating to the oxidation of organic compounds - Google Patents
Improvements in and relating to the oxidation of organic compoundsInfo
- Publication number
- ES254766A1 ES254766A1 ES0254766A ES254766A ES254766A1 ES 254766 A1 ES254766 A1 ES 254766A1 ES 0254766 A ES0254766 A ES 0254766A ES 254766 A ES254766 A ES 254766A ES 254766 A1 ES254766 A1 ES 254766A1
- Authority
- ES
- Spain
- 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
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)
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.
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 |
|---|---|
| ES254766A1 true ES254766A1 (en) | 1960-03-01 |
Family
ID=9714889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0254766A Expired ES254766A1 (en) | 1959-01-12 | 1960-01-05 | 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 |
| BE586427A (en) | 1960-07-11 |
| GB877677A (en) | 1961-09-20 |
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