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:
May. 19, 2015
Filed:
Jul. 30, 2010
Shawn D. Feist, Midland, MI (US);
Daniel A. Hickman, Midland, MI (US);
Erich J. Molitor, Midland, MI (US);
David C. Molzahn, Midland, MI (US);
Stacie Santhany, Auburn, MI (US);
Abraham D. Schuitman, Midland, MI (US);
Shawn D. Feist, Midland, MI (US);
Daniel A. Hickman, Midland, MI (US);
Erich J. Molitor, Midland, MI (US);
David C. Molzahn, Midland, MI (US);
Stacie Santhany, Auburn, MI (US);
Abraham D. Schuitman, Midland, MI (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A process for conversion of aliphatic bicyclic amines to aliphatic diamines including contacting one or more bicyclic amines selected from the group consisting of 3-azabicyclo[3.3.1]nonane and azabicyclo[3.3.1]non-2-ene with ammonia and hydrogen, and alcohols in the presence of heterogeneous metal based catalyst systems, a metal selected from the group consisting of Co, Ni, Ru, Fe, Cu, Re, Pd, and their oxides at a temperature from 140° C. to 200° C. and a pressure from 1540 to 1735 psig for at least one hour reactor systems; forming a product mixture comprising aliphatic diamine(s), bicyclic amine(s), ammonia, hydrogen, and alcohol(s); removing said product mixture from the reactor system; removing at least some of the ammonia, hydrogen, water, alcohols, bicyclic amines from said product mixture; thereby separating the aliphatic diamines from said product mixture.