摘要
矿物可浮性研究和电动电位测定试验表明:只有当介质pH值大于磁铁矿和绿泥石的PZC时,十二胺才能有效捕收上述矿物;十二胺与磁铁矿和绿泥石的作用以物理吸附为主;六偏磷酸钠与磁铁矿和绿泥石之间存在着很强的化学作用,它的存在可明显地改变磁铁矿和绿泥石的电动电位并强烈抑制其上浮。
Floatability of magnetite and chlorite by dodecylamine, and the influence of sodium hexametaphosphate on it were studied by the experiments of flotation and zeta potential measurement. The results indicate that magnetite and chlorite were collected effectively only at the pH greater than the PZC of the minerals. The adsorption of dodecylamine on the minerals is mainly due to physical action. Sodium hexametaphosphate distinctly changed the zeta potential of magnetite and chlorite and depressed their floatability by dodecylamine because of the strong chemical action between it and the minerals.
出处
《中国矿业》
1993年第2期53-57,共5页
China Mining Magazine
关键词
磁铁矿
绿泥石
十二胺
浮游选矿
Magnetite, Chlorite, Floatability, Dodecylamine, Sodium hexametaphosphate
