GB832995A - Improvements in and relating to a process for the oxidation of organic compounds - Google Patents
Improvements in and relating to a process for the oxidation of organic compoundsInfo
- Publication number
- GB832995A GB832995A GB3366056A GB3366056A GB832995A GB 832995 A GB832995 A GB 832995A GB 3366056 A GB3366056 A GB 3366056A GB 3366056 A GB3366056 A GB 3366056A GB 832995 A GB832995 A GB 832995A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reactor
- methyl
- xylene
- toluene
- bromide
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/02—Alloys based on vanadium, niobium, or tantalum
-
- 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)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
For carrying out the oxidation of organic compounds in the liquid phase by means of air, or other gases which contain molecular oxygen or ozone, in the presence of bromine, hydrogen bromide or a metallic bromide, a reactor is employed which is made of, or lined with, titanium or tantalum or alloys of one or both these metals, whereby corrosion of the reactor is obviated. Auxiliary parts such as stirrers and nozzles for the introduction of air may also be fabricated of the specified metals. The reactor may be used for the oxidation of o-xylene to phthalic anhydride in the presence of benzoic acid and of a mixed cobalt bromide/manganese bromide catalyst. The following compounds may also be oxidized : p-di-isopropyl benzene, p-xylene, toluene, cumene, mesitylene, o-xylene, m-xylene, methyl naphthalene, methyl pyridine, benzyl benzoate, p-toluic acid, methyl p-toluate, benzyl alcohol, benzaldehyde, ethyl benzene, n-propyl benzene, b -methyl-n-propyl benzene, diphenyl ethane, ortho- and parahalomethyl toluenes, chlorotoluene, toluene sulphonamide, cresyl benzoate, p-toluene sulphonic acid, methyl p-toluene sulphonate, p-toluamide, p-nitrotoluene, cyclohexene, cyclohexane, pentane, propionaldehyde, n-butyraldehyde, cyclohexanone, and b ,b 1-dichlorodiethyl ether. Other reactor materials, including zirconium, are referred to. The Provisional Specifications mention hafnium as a reactor-material. Specifications 804,612 and 824,116 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3366056A GB832995A (en) | 1956-11-05 | 1956-11-05 | Improvements in and relating to a process for the oxidation of organic compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3366056A GB832995A (en) | 1956-11-05 | 1956-11-05 | Improvements in and relating to a process for the oxidation of organic compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB832995A true GB832995A (en) | 1960-04-21 |
Family
ID=10355779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3366056A Expired GB832995A (en) | 1956-11-05 | 1956-11-05 | Improvements in and relating to a process for the oxidation of organic compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB832995A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3305561A (en) * | 1965-03-01 | 1967-02-21 | Chevron Res | Aromatic cyclic imide process |
| US3379756A (en) * | 1964-10-15 | 1968-04-23 | Allied Chem | Manufacture of malic acid |
| FR2417491A1 (en) * | 1978-02-20 | 1979-09-14 | Mitsubishi Gas Chemical Co | METHOD AND APPARATUS FOR THE PREPARATION OF A HIGH PURITY TEREPHTHALIC ACID |
| USRE31139E (en) * | 1964-10-15 | 1983-02-01 | Allied Corporation | Manufacture of malic acid |
| US4500730A (en) * | 1982-01-18 | 1985-02-19 | Mitsubishi Gas Chemical Company, Inc. | Process for producing aromatic polycarboxylic acid |
| WO1993023359A1 (en) * | 1992-05-21 | 1993-11-25 | Imperial Chemical Industries Plc | Bromine catalysed oxidation processes |
| EP0764626A1 (en) * | 1995-09-21 | 1997-03-26 | Intercontinental Quimica, S.A. (Interquisa) | Process to manufacture aromatic carboxylic acids |
| CN103288631A (en) * | 2012-02-29 | 2013-09-11 | 中国石油化工股份有限公司 | Preparation method of benzoic acid |
-
1956
- 1956-11-05 GB GB3366056A patent/GB832995A/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3379756A (en) * | 1964-10-15 | 1968-04-23 | Allied Chem | Manufacture of malic acid |
| USRE31139E (en) * | 1964-10-15 | 1983-02-01 | Allied Corporation | Manufacture of malic acid |
| US3305561A (en) * | 1965-03-01 | 1967-02-21 | Chevron Res | Aromatic cyclic imide process |
| FR2417491A1 (en) * | 1978-02-20 | 1979-09-14 | Mitsubishi Gas Chemical Co | METHOD AND APPARATUS FOR THE PREPARATION OF A HIGH PURITY TEREPHTHALIC ACID |
| US4500730A (en) * | 1982-01-18 | 1985-02-19 | Mitsubishi Gas Chemical Company, Inc. | Process for producing aromatic polycarboxylic acid |
| WO1993023359A1 (en) * | 1992-05-21 | 1993-11-25 | Imperial Chemical Industries Plc | Bromine catalysed oxidation processes |
| TR28517A (en) * | 1992-05-21 | 1996-09-02 | Ici Plc | Bromine catalyzed oxidation processes. |
| EP0764626A1 (en) * | 1995-09-21 | 1997-03-26 | Intercontinental Quimica, S.A. (Interquisa) | Process to manufacture aromatic carboxylic acids |
| CN103288631A (en) * | 2012-02-29 | 2013-09-11 | 中国石油化工股份有限公司 | Preparation method of benzoic acid |
| CN103288631B (en) * | 2012-02-29 | 2016-05-25 | 中国石油化工股份有限公司 | A kind of benzoic preparation method |
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