Title:
MANUFACTURE OF ANILINE AND DIPHENYLAMINE SIMULTANEOUSLY
Document Type and Number:
Japanese Patent JPS5984848
Kind Code:
A
Abstract:
A process for the coproduction of aniline and diphenylamine from phenol and ammonia is shown. An aniline reaction mixture containing ammonia and phenol is at least partially reacted to form aniline and that reaction mixture is distilled to separate a portion of the product aniline and the unreacted phenol therein. Aniline and phenol are then at least partially reacted to form diphenylamine. Product aniline and diphenylamine are recovered. In the preferred embodiment the aniline formed in the aniline reaction is stripped of ammonia and water and distilled to form purified aniline and a crude bottoms product containing phenol and aniline. The latter stream is combined with the dried effluent from the diphenylamine reactor and, after distillation to separate crude diphenylamine, is recycled to the diphenylamine reactor.
Inventors:
NANDO KEI KOTSUCHIYAA
BURAIAN JIEI OZERO
BURAIAN JIEI OZERO
Application Number:
JP18434483A
Publication Date:
May 16, 1984
Filing Date:
September 30, 1983
Export Citation:
Assignee:
HALCON INTERNATIONAL INC
International Classes:
B01J21/00; C07C67/00; C07C209/00; C07B61/00; C07C209/18; C07C211/46; C07C211/55; (IPC1-7): B01J21/00; C07C85/06; C07C87/50
Attorney, Agent or Firm:
Akizawa Masamitsu