Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1983-05-20
1984-10-30
Shaver, Paul F.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C07C 8506
Patent
active
044801270
ABSTRACT:
A process for the production of predetermined variable amounts of diphenylamine and aniline from a feedstock consisting essentially of phenol and ammonia is disclosed. The process involves catalytically reacting phenol and ammonia to produce aniline in situ and then reacting part of the aniline with other phenol and aniline to produce DPA, with the remaining aniline being removed from the reaction media as product.
REFERENCES:
patent: 3272865 (1966-09-01), Barker
patent: 3682782 (1972-08-01), Choo
patent: 3860650 (1975-01-01), Becker et al.
patent: 4326080 (1982-04-01), Wedemeyer et al.
Becker Mitchell
Sachs Howard M.
Long William C.
Shaver Paul F.
Stewart R. T.
The Halcon SD Group, Inc.
Zirker D. R.
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