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PP菌与铁矿石中的矿物 (赤铁矿、刚玉、方解石、石英和高岭石 )之间作用可使矿物表面发生很大的变化。石英和高岭石具有更高的疏水性 ,而其它矿物变得更亲水。在作用后的赤铁矿、刚玉和方解石上细菌多糖占主导地位 ,而在石英和高岭石表面上蛋白质占主导地位 ,因而使矿物表面性质发生变化。可以用不同的矿物对细菌菌株预先驯服。刚玉驯服的菌株可分泌出对矿物特效的蛋白质 ,它有利于从铁矿石中分离氧化铝。试验证实了在铁矿石选矿中用生物法脱除二氧化硅和氧化铝的可行性
The interaction between the PP bacteria and the minerals in the iron ores (hematite, corundum, calcite, quartz and kaolinite) can cause large changes in the mineral surface. Quartz and kaolinite have higher hydrophobicity, while other minerals become more hydrophilic. Bacterial polysaccharides dominate the role of hematite, corundum and calcite, while proteins dominate the surface of quartz and kaolinite, resulting in changes in mineral surface properties. Bacteria strains can be pre-tamed with different minerals. Cornstroot tampered strains can secrete mineral-specific proteins that help to separate alumina from iron ore. The experiment confirmed the feasibility of bioclear removal of silica and alumina in iron ore beneficiation