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:
Jun. 02, 1987
Filed:
Nov. 13, 1985
Applicant:
Inventor:
Joseph E Toomey, Jr, Indianapolis, IN (US);
Assignee:
Reilly Tar & Chemical Corp., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25G / ;
U.S. Cl.
CPC ...
204 / ; 204 72 ; 204 / ; 204 74 ;
Abstract
An improved electrochemical dimerization of a N-substituted pyridinium salt to its corresponding N,N'-disubstituted 4,4'-tetrahydrobipyridine in a flow cell at a high-surface-area cathode, employing an ion-exchange membrane divider and an alkaline catholyte solution. Isolation and recovery of the resultant product are reported in significant yields are reported without the use of an extracting solvent or corrosion or other additive either in the catholyte solution or in any subsequent operation.