Manufacture of diphenylamine

Details Manufacture of diphenylamine Manufacture of diphenylamine

1982-10-13

1984-06-12

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07C 8518, C07C 8520

Patent

active

044543484

ABSTRACT:
Diphenylamine is made by the reaction in the vapor phase of two moles of aniline with the consequent evolution of ammonia; surprisingly high yields and selectivities are obtained by maintaining a significant concentration of ammonia in the catalyst zone, preferably by using the ammonia as a carrier for the aniline.

REFERENCES:
patent: 2968676 (1961-01-01), Potter et al.
patent: 3079439 (1963-02-01), Potter
patent: 3118944 (1964-01-01), Addis
patent: 3944613 (1976-03-01), Naramoto et al.

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