Process for preparing diphenylamine from aniline
AssigneeNew Japan Chemical Co., Ltd.
InventorsIsao Naramoto, Tatsuo Kyuma, Giichi Akazome
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Abstract
In repairing diphenylamine by reacting aniline in a liquid phase in the presence of a catalyst at a temperature of about 320.degree. to about 370.degree.C, a process which is characterized in that said catalyst is an amorphous synthetic silica-alumina catalyst containing 5 to 50% by weight of alumina.
Claims6
In the process for preparing diphenylamine by reacting aniline in a liquid phase in the presence of a catalyst at a temperature of about 320.degree. to about 370.degree.C, the improvement wherein said catalyst comprises an amorphous synthetic silica-alumina catalyst containing 5 to 50% by weight of alumina.
Dependencies are inferred from the claim text.