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:
Nov. 07, 1989
Filed:
Apr. 07, 1988
Applicant:
Inventor:
Alexander G Kent, North Humberside, GB;
Assignee:
BP Chemicals Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
562550 ; 562609 ;
Abstract
Formate salts of nitrogenous bases containing a tertiary nitrogen atom are prepared by reacting the nitrogenous base with carbon dioxide and hydrogen in the presence of a solvent and a catalyst comprising an inorganic or organometallic compound of rhodium and an organophosphorus compound. The catalysts disclosed effect the reaction at a lower temperature and at higher productivities relative to the Group VIII metal catalysts of the prior art.