Process for producing mono-ortho-ethyl-aniline using silica-alumina catalysts
AssigneeAir Products and Chemicals, Inc.
InventorsWilliam F. Burgoyne, Jr., Dale D. Dixon
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Abstract
This invention relates to a process for producing mono-ortho-ethyl- aniline in high selectivity and at high conversion using a silica-alumina catalyst. The reaction is carried out using a fixed bed reactor. Diethylaniline derivatives are avoided by maintaining preselected mole ratios of ethylene to aniline, preselected temperatures and preselected reaction times.
Claims4
In a process for reacting aniline with ethylene to form a ring alkylated aniline, said reaction being carried out in the presence of an acidic catalyst, the improvement for selectivity forming monoethyl aniline where the ethyl group is ortho to the amine at high conversion which comprises:
- reacting aniline with ethylene;
- and
- effecting said reaction in the presence of a silica-alumina catalyst maintained in a fixed bed catalytic reactor;
- maintaining a mole ratio of aniline to ethylene of from 2 to 10, a temperature from 250.degree. to 400.degree. C.;
- and
- maintaining an LHSV of from 0.05 to 0.5 hr.sup.-1.
Dependencies are inferred from the claim text.