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. 28, 2023
Filed:
Aug. 30, 2017
Applicant:
Kemira Oyj, Helsinki, FI;
Inventors:
Assignee:
KEMIRA OYJ, Helsinki, FI;
Primary Examiner:
Int. Cl.
CPC ...
B03D 1/016 (2006.01); B03D 1/06 (2006.01); C02F 1/24 (2023.01); C08F 220/34 (2006.01); C08F 220/56 (2006.01); C08G 59/10 (2006.01); C08L 39/04 (2006.01); C08L 79/02 (2006.01); B03D 1/00 (2006.01); C02F 103/10 (2006.01); B03D 1/01 (2006.01); C02F 1/56 (2023.01); C02F 101/20 (2006.01);
U.S. Cl.
CPC ...
B03D 1/016 (2013.01); B03D 1/00 (2013.01); B03D 1/06 (2013.01); C02F 1/24 (2013.01); C08F 220/34 (2013.01); C08F 220/56 (2013.01); C08G 59/10 (2013.01); C08L 39/04 (2013.01); C08L 79/02 (2013.01); B03D 1/01 (2013.01); B03D 2201/002 (2013.01); B03D 2201/06 (2013.01); B03D 2203/02 (2013.01); B03D 2203/025 (2013.01); C02F 1/56 (2013.01); C02F 2101/20 (2013.01); C02F 2103/10 (2013.01);
Abstract
The present embodiments generally relate to a technology for improving Cu/Mo grade by the addition of cationic polymers as selective depressants for acid insoluble matters, e.g., silicates and/or clays, in the flotation circuit. Various types of cationic polymers are demonstrated to be effective depressants including polyamine, polyDADMAC, and cationic polyacrylamide. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue, wherein the process comprises carrying out a flotation process in the presence of one or more cationic polymer depressants.