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. 01, 1992
Filed:
Mar. 22, 1991
Applicant:
Inventors:
Douglas J Zuliani, Stittsville, CA;
Bernard Closset, Toronto, CA;
Assignee:
Timminco Limited, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
420402 ;
Abstract
A novel alloy for use in lead refining is disclosed comprised substantially of magnesium and calcium. The preferred ratio on a weight basis of magnesium to calcium is between about 1.2:1 to about 3.0:1. A method of refining a lead bath with the novel alloy is disclosed which provides a high recovery ratio of impurities present therein.