GB507860A - Manufacture of diphenylamine - Google Patents

Manufacture of diphenylamine

Info

Publication number
GB507860A
GB507860A GB107238A GB107238A GB507860A GB 507860 A GB507860 A GB 507860A GB 107238 A GB107238 A GB 107238A GB 107238 A GB107238 A GB 107238A GB 507860 A GB507860 A GB 507860A
Authority
GB
United Kingdom
Prior art keywords
water
reaction
diphenylamine
copper
sphere
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
Application number
GB107238A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
Societe des Usines Chimiques Rhone Poulenc SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rhone Poulenc SA, Societe des Usines Chimiques Rhone Poulenc SA filed Critical Rhone Poulenc SA
Priority to GB107238A priority Critical patent/GB507860A/en
Publication of GB507860A publication Critical patent/GB507860A/en
Expired legal-status Critical Current

Links

Abstract

507,860. Diphenylamine. SOC. DES USINES CHIMIQUES RHONE-POULENC, and SCRIABINE, I. Jan. 12, 1938, No. 1072. [Class 2 (iii)] Diphenylamine is prepared by reacting chloro benzene or an alkali benzene sulphonate with aniline in the presence of caustic alkali and removing the eliminated water as fast as it is formed. The presence of a small quantity of copper, and/or copper oxide and/or copper salt favours the reaction. The removal of the water from the sphere of reaction may be effected by the use of a "carrier liquid" to form an azeotropic mixture with the water; the water carried away is separated by means of a suitable device and the "carrier liquid" is returned to the reaction. One of the reagents may be used in excess for this purpose. Xylene is also specified as being suitable. Alternatively, the eliminated water can be removed from the reaction sphere by fixing it with, for example, quicklime. Examples are given.
GB107238A 1938-01-12 1938-01-12 Manufacture of diphenylamine Expired GB507860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB107238A GB507860A (en) 1938-01-12 1938-01-12 Manufacture of diphenylamine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB107238A GB507860A (en) 1938-01-12 1938-01-12 Manufacture of diphenylamine

Publications (1)

Publication Number Publication Date
GB507860A true GB507860A (en) 1939-06-22

Family

ID=9715686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB107238A Expired GB507860A (en) 1938-01-12 1938-01-12 Manufacture of diphenylamine

Country Status (1)

Country Link
GB (1) GB507860A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476170A (en) * 1945-07-16 1949-07-12 Dow Chemical Co Manufacture of diphenylamine
DE1025417B (en) * 1955-06-07 1958-03-06 Basf Ag Process for the preparation of tertiary amines
US3155727A (en) * 1960-07-25 1964-11-03 Goodyear Tire & Rubber Reaction of aromatic amines with para halo nitrobenzenes using copper cyanide condensation catalyst
US3313854A (en) * 1961-11-20 1967-04-11 Universal Oil Prod Co Preparation of para-nitrodiphenylamines utilizing a copper oxide catalyst
US4764625A (en) * 1980-12-12 1988-08-16 Xerox Corporation Process for preparing arylamines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476170A (en) * 1945-07-16 1949-07-12 Dow Chemical Co Manufacture of diphenylamine
DE1025417B (en) * 1955-06-07 1958-03-06 Basf Ag Process for the preparation of tertiary amines
US3155727A (en) * 1960-07-25 1964-11-03 Goodyear Tire & Rubber Reaction of aromatic amines with para halo nitrobenzenes using copper cyanide condensation catalyst
US3313854A (en) * 1961-11-20 1967-04-11 Universal Oil Prod Co Preparation of para-nitrodiphenylamines utilizing a copper oxide catalyst
US4764625A (en) * 1980-12-12 1988-08-16 Xerox Corporation Process for preparing arylamines

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