阴阳离子捕收剂反浮选褐铁矿试验研究

Reverse Flotation Experiments on a Limonite with Anionic and Cationic Collectors

针对某褐铁矿性质相对较简单的特点,采用单一反浮选工艺选别褐铁矿。研究了脱泥、单一阳离子及阴阳离子联合等技术方案对反浮选指标的影响。试验结果表明,采用添加新型阳离子表面活性剂DTL脱泥、石灰活化含硅矿物、淀粉抑制铁矿物、油酸及十二胺联合使用的新工艺方案,取得了良好的分选指标。经脱泥和反浮选后,得到含铁品位为57.18%、铁回收率74.9%的褐铁矿精矿。

Reverse flotation technology was used in the processing of a limonite ores with simple component, and the influences of de-sliming, cationic collector, the compound of anionic and cationic collector on the reverse flotation of limonite were also studied in this paper. The results showed that the better separation was achieved while using a new cationic surfactant DTL as de-sliming reagent, lime as activator for silicates, starch as depressant for iron minerals, oleic acid and dodecyl amine as collectors. A limonite concentrate was obtained with 57.18%TFe, and the iron recovery was 74.90%.