GB1417662A - Method of preparing p-chloro-m-phenylenediamine - Google Patents
Method of preparing p-chloro-m-phenylenediamineInfo
- Publication number
- GB1417662A GB1417662A GB2582274A GB2582274A GB1417662A GB 1417662 A GB1417662 A GB 1417662A GB 2582274 A GB2582274 A GB 2582274A GB 2582274 A GB2582274 A GB 2582274A GB 1417662 A GB1417662 A GB 1417662A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloro
- platinum
- range
- weight per
- hydrogen
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
1417662 p-Chloro-m-phenylenedia mine preparation GOODYEAR TIRE & RUBBER CO 11 June 1974 [2 July 1973] 25822/74 Heading C2C A method of preparing p-chloro-m-phenylenediamine comprises hydrogenating 4-chloro-1,3- dinitro benzene in a solvent solution which will dissolve said diamine and which comprises from 85 to 100 weight per cent of an ester and from 0 to 15 weight per cent of a mono alcohol at a pressure in the range of from 400 to 1000 pounds per square inch gauge and at a temperature in the range of from 60‹ to 140‹ C. in the presence of a reduced platinum on granular carbon catalyst which comprises from 0À5 to 1À5 weight per cent platinum which catalyst is characterized by having a nitrobenzene number (as hereinafter defined) in the range of 260 to 3200 and further characterized by the platinum being reduced on the carbon support by at least 95% and means being provided for the introduction of the hydrogen which preferably comprises a dispersive hydrogen charging means positioned beneath the liquid mixture. The nitrobenzene number is calculated as the volume of hydrogen at STP taken up over the first five minutes of reaction per gram of dry catalyst.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37558973A | 1973-07-02 | 1973-07-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1417662A true GB1417662A (en) | 1975-12-10 |
Family
ID=23481476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2582274A Expired GB1417662A (en) | 1973-07-02 | 1974-06-11 | Method of preparing p-chloro-m-phenylenediamine |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5040535A (en) |
CA (1) | CA1018546A (en) |
DE (1) | DE2428141C2 (en) |
FR (1) | FR2235912B1 (en) |
GB (1) | GB1417662A (en) |
IT (1) | IT1016243B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2547264C1 (en) * | 2013-08-07 | 2015-04-10 | Общество с ограниченной ответственностью "Фенил" (ООО "Фенил") | Method of producing chlorine-substituted phenylenediamines |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3073865A (en) * | 1958-09-17 | 1963-01-15 | Du Pont | Process for catalytically reducing halogen-substituted aromatic nitro compounds to the corresponding amines |
FR1250453A (en) * | 1959-09-10 | 1961-01-13 | Du Pont | Catalytic reduction process for nitrated and halogenated aromatic compounds |
DE1187243B (en) * | 1962-04-09 | 1965-02-18 | Du Pont | Process for the preparation of halogen-substituted aromatic amines |
US3499034A (en) * | 1966-08-01 | 1970-03-03 | Du Pont | Hydrogenation of aromatic nitro compounds |
US3474144A (en) * | 1966-08-17 | 1969-10-21 | Gaf Corp | Catalytic reduction of chloronitro aromatic compounds |
-
1974
- 1974-06-03 CA CA201,471A patent/CA1018546A/en not_active Expired
- 1974-06-11 DE DE2428141A patent/DE2428141C2/en not_active Expired
- 1974-06-11 GB GB2582274A patent/GB1417662A/en not_active Expired
- 1974-06-27 FR FR7422381A patent/FR2235912B1/fr not_active Expired
- 1974-06-28 IT IT51831/74A patent/IT1016243B/en active
- 1974-07-02 JP JP49075794A patent/JPS5040535A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2547264C1 (en) * | 2013-08-07 | 2015-04-10 | Общество с ограниченной ответственностью "Фенил" (ООО "Фенил") | Method of producing chlorine-substituted phenylenediamines |
Also Published As
Publication number | Publication date |
---|---|
FR2235912B1 (en) | 1977-10-14 |
IT1016243B (en) | 1977-05-30 |
FR2235912A1 (en) | 1975-01-31 |
JPS5040535A (en) | 1975-04-14 |
DE2428141C2 (en) | 1982-11-18 |
CA1018546A (en) | 1977-10-04 |
DE2428141A1 (en) | 1975-01-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |