关键词: 菱铁矿, 赤铁矿, 浮选分离, 改性水玻璃, 阴离子捕收剂TS

Abstract: From the flotation tests of mono-mineral Siderite and Hematite,it is discovered that the new-developed anionic collector TS has a good selective collecting effect on Siderite,and the modified sodium silicate has a good selective inhibited effect on Hematite under higher alkaline condition. These two agents were used in beneficiation tests on artificial ores of Siderite and Hematite,and a good concentration result was obtained. The XPS analysis showed that TS can be adsorbed in the surface of Siderite,and the modified sodium silicate be adsorbed in the surface of Hematite. Both kinds of adsorption belong to the chemical one,where TS play a role through the action of its bonding atomic sulfur and ferrous ions on the surface of siderite

Key words: Siderite, Hematite, Flotation separation, Modified sodium silicate, Anionic collector TS