GB947006A - Process for the production of diphenylamine - Google Patents
Process for the production of diphenylamineInfo
- Publication number
- GB947006A GB947006A GB565862A GB565862A GB947006A GB 947006 A GB947006 A GB 947006A GB 565862 A GB565862 A GB 565862A GB 565862 A GB565862 A GB 565862A GB 947006 A GB947006 A GB 947006A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphorus
- halogen
- weight
- reaction
- diphenylamine
- 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
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/64—Preparation of compounds containing amino groups bound to a carbon skeleton by disproportionation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Diphenylamine is produced by heating aniline to a temperature above 280 DEG C. under a pressure of at least 6 atmospheres, and with the removal of ammonia split off, in the presence, as catalyst, of a halogen and an oxygen-containing compound of phosphorus. The pressure under which the reaction is carried out may be due entirely to the ammonia liberated by the reaction or may be augmented by a pressurized inert gas. Specified oxygen-containing compounds of phosphorus are phosphorus trioxide, phosphorus pentoxide, phosphorous acid, phosphonic acid and boron phosphate. Both the halogen and phosphorus compound may be used in an amount between 0.1 and 0.5% by weight, based on the aniline used, and the weight for weight ratio bewteen the halogen and phosphorus compound is preferably bewteen 1:0.5 and 1:2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF33490A DE1144284B (en) | 1961-03-23 | 1961-03-23 | Process for the production of diphenylamine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB947006A true GB947006A (en) | 1964-01-22 |
Family
ID=7095111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB565862A Expired GB947006A (en) | 1961-03-23 | 1962-02-14 | Process for the production of diphenylamine |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE614010A (en) |
| DE (1) | DE1144284B (en) |
| GB (1) | GB947006A (en) |
-
1961
- 1961-03-23 DE DEF33490A patent/DE1144284B/en active Pending
-
1962
- 1962-02-14 GB GB565862A patent/GB947006A/en not_active Expired
- 1962-02-16 BE BE614010A patent/BE614010A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE614010A (en) | 1962-06-18 |
| DE1144284B (en) | 1963-02-28 |
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