The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 1993
Filed:
Sep. 17, 1991
Yasushi Hara, Shinnanyo, JP;
Toshio Hironaka, Tokuyama, JP;
Noritaka Nagasaki, Shinnanyo, JP;
Nobuyuki Kanai, Kudamatsu, JP;
Nobumasa Suzuki, Shinnanyo, JP;
Yukio Ito, Kudamatsu, JP;
Takanori Miyake, Yokkaichi, JP;
Tosoh Corporation, Shinnanyo, JP;
Abstract
A process for producing an ethylenamine, which comprises reacting ammonia and/or an ethylenamine with an ethanolamine in the presence of hydrogen to obtain an ethylenamine having an increased number of ethylene chains over the ammonia and/or the ethyelenamine used as the starting material, wherein a catalyst comprising Ni and M elements wherein M is at least one rare earth element selected from the group consisting of scandium, yttrium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium, is used for the reaction.