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:
Jan. 31, 1984
Filed:
Mar. 18, 1983
Charles E Cutchens, Pensacola, FL (US);
Lynn H Lanier, Decatur, AL (US);
Monsanto Company, St. Louis, MO (US);
Abstract
In the production of amines from nitriles where the nitriles are hydrogenated under pressure in the presence of a Raney Nickel Catalyst using hydrogen produced from methane and containing CO.sub.2, a more efficient separation of the product hexamethylene diamine from the catalyst is obtained by maintaining a specified carbonate concentration. This specific carbonate concentration improves the settling characteristics of the catalyst and reduces catalyst carryover into the crude hexamethylene diamine during decantation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile