The Flotation of Pyrite and Chalcopyrite in the Presence of Biopolymers

 

Author: Yufan Mu, School of Chemical Engineering, University of Queensland, Australia

Co-Authors: Dr. Rolf Andreas Lauten, Pionera; Yongjun Peng, JKMRC, University of Queensland, Australia

Published in: 2014

 

ABSTRACT:

Biopolymers, produced from cellulosic biomass, have promising prospects of application as depressants in mineral processing. In this study, three different types of biopolymers (i.e., DP 1775, DP 1777 and DP-1778) were used to study the effect of polymer structure on flotation of un-activated pyrite, copper activated pyrite and chalcopyrite. It was found that the depressing effect of DP-1775 and DP-1778 was much stronger than that of DP-1777, and pyrite was depressed to a greater content than chalcopyritre with the same biopolymer at the same dosage.