Temperature sensitive polymers as efficient and selective flotation collectors

被引：24

作者：

Forbes, Elizaveta ^{[1
]}

Bradshaw, Dee J. ^{[2
]}

Franks, George V. ^{[1
]}

机构：

[1] Univ Melbourne, Dept Chem & Biomol Engn, Australian Mineral Sci Res Inst, Melbourne, Vic 3010, Australia

[2] Univ Queensland, Julius Kruttschnitt Mineral Res Ctr, Indooroopilly, Qld 4068, Australia

来源：

MINERALS ENGINEERING | 2011年 / 24卷 / 08期

基金：

澳大利亚研究理事会;

关键词：

Flotation collectors; Oxide ores; Column flotation; TRANSITION; HEMATITE;

D O I：

10.1016/j.mineng.2011.02.003

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This study investigates both the efficacy and selectivity temperature responsive of poly(N-isopropylacrylamide) PNIPAM as a flotation collector. The results of this study showed that charged poly(N-isopropylacrylamide) polymers selectively increased both the probability particle/bubble attachment as well as the floatability of coarse alumina and quartz particles respectively. These results provide a basis for considering PNIPAM as both an effective and selective collector in a flotation system. Coupled with previous studies that demonstrate the efficacy of PNIPAM as a flocculant in mineral suspensions, these results clearly demonstrate the potential use of PNIPAM as a dual function reagent which acts as both selective flotation collector and flocculant in the flotation of ultrafine particles. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：772 / 777

页数：6

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