赤铁矿的正-反浮选研究

赤铁矿的有效选别对钢铁工业的发展有重大的作用。正-反浮选对于处理贫、细、杂的赤铁矿有比较明显的优势。通过对人工混合矿的正-反浮选流程和对淀粉已吸附了捕收剂的赤铁矿单矿物的抑制机理的研究，进一步证实了正-反浮选工艺流程是可行的。通过试验结果可以发现正-反浮选流程处理弱磁性铁矿物有巨大的潜力。

Study on Direct-indirect Flotation of Hematite Ore

The effective separation of hematite ore is of major significance to the development of iron and steel industry. The characteristics of direct indirect flotation have remarkable superiorities in treating lean impurified fine hematite ore. The study on the direct indirect flotation flowsheet for artificially mixed ore and on the depression mechanism of single mineral of hematite having adsorbed to the collector has further proved the feasibility of the direct indirect flotation flowsheet. It is found from the test results that it has great potentiality in using this flowsheet to treat weakly magnetic minerals.