摘要
为探索高碱高钙电位调控浮选工艺应用于脆硫锑铅矿、铁闪锌矿、磁黄铁矿、黄铁矿分离的可能性,研究了铁闪锌矿、磁黄铁矿在饱和Ca(OH)2体系中与乙硫氮相互作用的电化学行为。结果表明,在Ca(OH)2体系中,铁闪锌矿和磁黄铁矿表面都有一个不断被强烈氧化的电极过程,并生成SO42-离子。但当体系中存在捕收剂乙硫氮(D-)时,两种矿物的电化学行为表现出一定的差异:铁闪锌矿表面吸附有弱疏水性的Zn(OH)D和少量疏水性的ZnD2,但这种吸附是不紧密的;D-难以附着在氧化的磁黄铁矿表面,但在未氧化的活性磁黄铁矿上会形成电化学吸附。
To explore the feasibility of the application of “high basicity and high calcium”electric potentional-controlled flotation process in the separation of jamesonite, marmatite, pyrrhotite and pyrite, the electrochemical behavior in the interaction of marmatite and pyrrhotite in Ca（OH）2 system with diethyl dithiocarbamate was studied. The results show that there is a strong oxidized electrode process and SO4^2- ions formation on the surfaces of marmatite and pyrrhotite in Ca（OH）2 system. However, when there exists diethyl dithiorcarbamate collector in the system, certain difference in electrochemical behavior between two kinds of minerals appears： though, on the surface of marmatite, there is adsorption of weakly hydrophobic Zn （OH） D and a little of hydrophobicic ZnD2, it is not a tight adsorption. It is difficult for D^- to adsorb on an oxidized surface of pyrrhotite, but D^- can adsorb electrochemically on an unoxidized surface of pyrrhotite.
出处
《金属矿山》
CAS
北大核心
2005年第8期30-33,共4页
Metal Mine
基金
国家自然科学重点基金项目(编号:50234010)。
