Process for preparation of secondary amine
AssigneeKao Corporation
InventorsYukinaga Yokota, Yuzi Sawamoto, Hideki Taniguchi, Kazuhiko Okabe
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Abstract
A secondary amine is effectively prepared by reacting an alcohol or an aldehyde with a primary amine in the presence of a catalyst of copper, nickel and a metal element belonging to the platinum group VIII at a pressure of the atmospheric pressure to 5 kg/cm.sup.2 G at a temperature of 150.degree. to 250.degree. C., while water produced in the reaction is being removed out, and separating the resulting secondary amine from the product mixture.
Claims9
A process for preparing a secondary amine, which comprises the steps of reacting an alcohol or an aldehyde with a primary amine in the presence of a catalyst of copper, nickel and a metal element selected from the group consisting of platinum, palladium, ruthenium and rhodium, at a pressure of from atmospheric pressure to 5 kg/cm.sup.2 G and at a temperature of from 50.degree. to 250.degree. C.;
- removing water produced in the reaction;
- and separating the secondary amine from a product mixture.
A process for preparing a secondary amine, which comprises the steps of reacting a Guerbet alcohol having 20 carbon atoms with laurylamine in the presence of a ternary catalyst consisting essentially of copper, nickel and ruthenium supported on a synthetic zeolite carrier, the molar ratio of the copper/nickel/ruthenium being 4/1/0.04 respectively;
- removing water produced in the reaction;
- and separating the secondary amine from a product mixture.
Dependencies are inferred from the claim text.