GB947082A - Preparation of 4-aminodiphenyl amine - Google Patents
Preparation of 4-aminodiphenyl amineInfo
- Publication number
- GB947082A GB947082A GB380661A GB380661A GB947082A GB 947082 A GB947082 A GB 947082A GB 380661 A GB380661 A GB 380661A GB 380661 A GB380661 A GB 380661A GB 947082 A GB947082 A GB 947082A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alcohol
- alkali metal
- catalyst
- nitroso compound
- preparation
- 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
Abstract
4-Aminodiphenylamine is prepared by hydrogenating in the presence of a catalyst an alkali metal derivative of 4-nitrosodiphenylamine in an alcoholic medium wherein the alcohol is an alkyl alcohol containing from 1 to 10 carbon atoms. The catalyst may be a metal of Group VIII of the Periodic Table, for example, nickel, cobalt, ruthenium, palladium or platinum, which may be mounted on a suitable inert support, e.g. carbon. Alcohols specified are ethanol, n-propanol, isopropanol, t-butanol and ethylene glycol. The alcohol may contain up to 50% by weight of water. The reduction may be carried out batchwise or continuously, at a temperature from room temperature to 150 DEG C. and at superatmospheric pressure. The alkali metal derivative of the nitroso compound need not be isolated before hydrogenation and it is sufficient to mix the appropriate alkali metal hydroxide with the nitroso compound and alcohol and hydrogenate the mixture obtained. Specification 835,669 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB380661A GB947082A (en) | 1961-02-01 | 1961-02-01 | Preparation of 4-aminodiphenyl amine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB380661A GB947082A (en) | 1961-02-01 | 1961-02-01 | Preparation of 4-aminodiphenyl amine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB947082A true GB947082A (en) | 1964-01-22 |
Family
ID=9765248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB380661A Expired GB947082A (en) | 1961-02-01 | 1961-02-01 | Preparation of 4-aminodiphenyl amine |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB947082A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4313002A (en) * | 1980-10-29 | 1982-01-26 | Uop Inc. | Preparation of p-aminodiphenylamines |
EP0184914A1 (en) * | 1984-12-05 | 1986-06-18 | UNIROYAL CHEMICAL COMPANY, Inc. | Process for preparing 4-aminodiphenylamines |
EP0784049A1 (en) * | 1996-01-11 | 1997-07-16 | Bayer Ag | Process for the preparation of optionally substituted 4-Aminodiphenylamines |
US7084302B2 (en) | 2003-07-04 | 2006-08-01 | Sinorgchem Shandong Co., Ltd. | Process for preparing 4-aminodiphenylamine |
US7176333B2 (en) | 2003-07-04 | 2007-02-13 | Sinorgchem Company, Shandong | Process for preparing 4-aminodiphenylamine |
CZ298923B6 (en) * | 2003-05-15 | 2008-03-12 | Vysoká škola chemicko-technologická v Praze | Catalyst for hydrogenation of 4-nitrosodiphenylamine with hydrogen to 4-aminodiphenylamine |
US8486223B2 (en) | 2003-07-04 | 2013-07-16 | Jiangsu Sinorgchem Technology Co., Ltd. | Falling film evaporator |
US8686188B2 (en) | 2003-07-04 | 2014-04-01 | Jiangsu Sinorgchem Technology Co., Ltd. | Process for preparing 4-aminodiphenylamine |
US9302259B2 (en) | 2010-05-24 | 2016-04-05 | Jiangsu Sinorgchem Technology Co., Ltd. | Solid base catalyst and method for making and using the same |
-
1961
- 1961-02-01 GB GB380661A patent/GB947082A/en not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4313002A (en) * | 1980-10-29 | 1982-01-26 | Uop Inc. | Preparation of p-aminodiphenylamines |
EP0184914A1 (en) * | 1984-12-05 | 1986-06-18 | UNIROYAL CHEMICAL COMPANY, Inc. | Process for preparing 4-aminodiphenylamines |
EP0784049A1 (en) * | 1996-01-11 | 1997-07-16 | Bayer Ag | Process for the preparation of optionally substituted 4-Aminodiphenylamines |
CZ298923B6 (en) * | 2003-05-15 | 2008-03-12 | Vysoká škola chemicko-technologická v Praze | Catalyst for hydrogenation of 4-nitrosodiphenylamine with hydrogen to 4-aminodiphenylamine |
US7084302B2 (en) | 2003-07-04 | 2006-08-01 | Sinorgchem Shandong Co., Ltd. | Process for preparing 4-aminodiphenylamine |
US7235694B2 (en) | 2003-07-04 | 2007-06-26 | Sinorgchem Co., Shandong | Process for preparing 4-aminodiphenylamine |
US7176333B2 (en) | 2003-07-04 | 2007-02-13 | Sinorgchem Company, Shandong | Process for preparing 4-aminodiphenylamine |
US7989662B2 (en) | 2003-07-04 | 2011-08-02 | Jiangsu Sinorgchem Technology Co., Ltd. | Process for preparing 4-aminodiphenylamine |
US8293673B2 (en) | 2003-07-04 | 2012-10-23 | Jiangsu Sinorgchem Technology Co., Ltd. | Process for preparing 4-aminodiphenylamine |
US8486223B2 (en) | 2003-07-04 | 2013-07-16 | Jiangsu Sinorgchem Technology Co., Ltd. | Falling film evaporator |
US8686188B2 (en) | 2003-07-04 | 2014-04-01 | Jiangsu Sinorgchem Technology Co., Ltd. | Process for preparing 4-aminodiphenylamine |
US9029603B2 (en) | 2003-07-04 | 2015-05-12 | Jiangsu Sinorgchem Technology Co., Ltd. | Process for preparing alkylated p-phenylenediamines |
US9302259B2 (en) | 2010-05-24 | 2016-04-05 | Jiangsu Sinorgchem Technology Co., Ltd. | Solid base catalyst and method for making and using the same |
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