The Effect of Various Depressants on the Selective Flotation of Murgul Copper Ore
This investigation was carded out with low grade Murgul-Cakmakkaya copper ore once used to be dumped away as waste material. Sulphide minerals in the ore sample observed are chalcopyrite,pyrite, sphalerite and to some extent molibdenite; quartz, calcite and dolomite are the gangue minerals. The ore sample assays 0.28% Cu, 2.94% Fe and 3.36% S.Mineralogical study of the ore sample showed that adequate liberation of chalcopyfite for flotation was achieved below 100 μm. In flotation tests Aerophine 3418-A was the collector employed,NaOH or Ca(OH)2 were the pH modifiers. eactivators used were sodium meta bi-sulphide,starch, dextrin and lime. MIBC was the frother used throughout the tests. Test results showed that starch alone was the most suitable depressant to give the optimum metal content and recovery values. Activated charcoal was used to adsorb excess collector species in the flotation pulp during cleaning stages.After two stages cleaning of the rougher concentrate using starch as the depressant a copper concentrate assaying 21.2% Cu was obtained with 79.5% recovery while the tailings contained 0.01% Cu and metal losses were about 3%
Depressants Copper ore
A. G(u)l A. A. Sirkeci S. Sahin
Dept. of Mineral Processinopg Engineering, Faculty of Mines, Istanbul Technical University,Istanbul, Turkiye
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
1210-1214
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）