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:
Sep. 06, 1994
Filed:
Apr. 19, 1993
Trevor S Marks, Wiltshire, GB;
Andrew Maule, Wiltshire, GB;
The Public Health Laboratory Service Board, London, GB;
Abstract
A method for dehalogenation of organohalogen compounds, e.g. environmental pollutants in industrial waste. The organohalogen is reacted with a reducing agent in the presence of a selected metal-centered corrin, porphyrin or phthalocyanine complex. Preferred complexes are hydrolysis products of cyanocobalamin, of formula (I), in which R.sup.1 is NH.sub.2 or OH, R.sup.2 is H, CH.sub.2 CH.sub.2 COOH or CH.sub.2 CH.sub.2 CONH.sub.2, R.sup.3 is H, CH.sub.2 CH.sub.2 COOH or CH.sub.2 CH.sub.2 CONH.sub.2, and R.sup.4 is NHCH.sub.2 CH(OH)CH.sub.3, OH or NH.sub.2. The complex is preferably immobilized on a substrate. Some novel metal-centered porphyrin complexes are also described. A dehalogenation apparatus using the method of the invention is also described. ##STR1##