Mossbauer spectroscopy study of enhanced magnetic separation of pyrite from coal by microwave irradiation 微波辐照增强原煤磁分离脱硫机理探讨
Vertical magnetic separator with pulsating vibration magnetic field was used for the treatment of pyrite cinder, the marketable iron concentrate with grade of over 60% was obtained. It provided a novel and efficient way for the comprehensive utilization of pyrite cinder. 利用立式脉冲振动磁场磁选机选别硫酸渣,获得可销售的高品位铁精矿(品位>60%),为硫酸渣的综合利用提供了一条有效的途径。
The test results using pure mineral show that the combination of sodium humate and calcium hypochlorite is an effective depressant of pyrite. In alkaline medium, magnetic field is favourable for depressing pyrite. 单矿物试验结果表明,腐植酸钠和次氯酸钙的组合抑制剂是黄铁矿的有效抑制剂,在碱性介质中,磁场有利于黄铁矿的抑制。
The manganese in the concentrate of both flotation and magnetic separation was dissolved in a reducing leaching, in which pyrite and some cellulose reductant were used. 将浮选精矿和银锰磁选精矿合并,用焙烧黄铁矿产生的SO2和纤维素还原剂进行还原浸出,锰溶于液相中,银在浸出渣中富集;
The test flowsheet of grinding-low intensity magnetic separation-anion reverse flotation, equipmint, technological conditions and test results for Yunfu pyrite calcined cinder are introduced. 对云浮硫铁矿烧渣磨矿-弱磁选-阴离子反浮选试验流程、设备、工艺条件和试验结果作了介绍。
At last, the process of reduction roasting magnetic separation is obtained. ( 3) Experiments on reduction roasting-magnetic separator of separating iron from sulfur slag of Pyrite are studied. 硫磺烧渣选铁还原焙烧&磁选试验。
Roasting can ascend magnetic separation an effective removal, because roasting treatment can change the pyrite iron-bearing minerals such as the magnetic characteristics, make its magnetic enhanced. 焙烧可以提升磁选除铁效果,原因在于通过焙烧处理可以改变黄铁矿等含铁矿物的磁性特征,使其磁性增强。