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:
Mar. 04, 1980
Filed:
Aug. 24, 1978
Applicant:
Inventors:
Giorgio Rinelli, Rome, IT;
Carlo Abbruzzese, Rome, IT;
Assignee:
Consiglio Nazionale delle Ricerche, Rome, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423 98 ; 423101 ;
Abstract
A process for separating lead and zinc from oxidized ore is disclosed. The process is directed to the ammoniacal leaching of the ore in the presence of the anions of polycarboxylic acids, particularly sodium tartrate, and the subsequent selective extraction by means of complex-producing solvents.