双(羧甲基)三硫代碳酸钠在铜钼硫化矿浮选分离中抑制机理

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Bibliographic Details
Published in	中国有色金属学报：英文版 Vol. 27; no. 4; pp. 883 - 890
Main Author	殷志刚;孙伟;胡岳华;管青军;张谌虎;高跃升;翟计划
Format	Journal Article
Language	English
Published	2017
Subjects	铜钼硫化矿;双(羧甲基)三硫代碳酸钠;抑制剂;浮选分离;物理吸附
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ISSN	1003-6326

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Bibliography:	43-1239/TG copper.molybdenum sulfide ore; disodium bis(carboxymethyl) trithiocarbonate; depressant; flotation separation;physical adsorption This work focuses on the organic depressant,disodium bis(carboxymethyl)trithiocarbonate(DBT),as a selectivedepressant in copper?molybdenum sulfide flotation separation.Micro-flotation,Zeta potential,FTIR and XPS measurements werecarried out to investigate the selective depression mechanism of DBT on chalcopyrite.Zeta potential and FTIR measurementsrevealed that DBT had higher affinity for chalcopyrite than molybdenite and the XPS results of chalcopyrite before and aftertreatment with DBT further proved that DBT adsorbed on chalcopyrite surface.The investigation indicates that the mechanism ofDBT adsorbing on chalcopyrite is mainly physical adsorption.Locked circuit experiments were carried out and the results showedthat DBT could be considered as a cleaner option in commercial Cu?Mo flotation separation circuits.
ISSN:	1003-6326