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:
Apr. 13, 2010
Filed:
Sep. 25, 2006
Gunther Van Cauwenberge, Temse, BE;
Johann-peter Melder, Boehl-Iggelheim, DE;
Holger Evers, Munich, DE;
Till Gerlach, Ludwigshafen, DE;
Frank Kiesslich, Dietzenbach, DE;
Ekkehard Schwab, Neustadt, DE;
Bram Willem Hoffer, Heidelberg, DE;
Gunther Van Cauwenberge, Temse, BE;
Johann-Peter Melder, Boehl-Iggelheim, DE;
Holger Evers, Munich, DE;
Till Gerlach, Ludwigshafen, DE;
Frank Kiesslich, Dietzenbach, DE;
Ekkehard Schwab, Neustadt, DE;
Bram Willem Hoffer, Heidelberg, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Processes comprising: providing a starting material comprising monoethanolamine; and reacting the starting material with ammonia in the presence of a heterogeneous transition metal catalyst to form a reaction product comprising one or more ethylene amines; wherein the catalyst comprises a catalytically active composition, which prior to treatment with hydrogen, comprises a mixture of oxygen-containing compounds of aluminum, copper, nickel and cobalt; and wherein the catalyst is present as one or more shaped catalyst particles selected from spheres, extrudates, pellets and other geometries, wherein the sphere or extrudate has a diameter of <3 mm, the pellet has a height of <3 mm, and the other geometries have an equivalent diameter L=1/a' of <0.70 mm, where a′ is the external surface area per unit volume (mm/mm), as defined by where Ais the external surface area of the catalyst particle (mm) and Vis the volume of the catalyst particle (mm).