磁化对浮选药剂及浮选过程的影响

Effect of magnetization on flotation reagents and process

通过磁场对水及药剂溶液的磁化处理,使得水及药剂溶液的光学、电学及其它性质发生变化,研究磁化处理对药剂和矿物作用的影响,以及对浮选过程的影响。测试分析结果表明:水系磁化处理能够引起水及药剂溶液体系的吸光度、pH值、溶氧量和电导率等性质的变化;水和黄药溶液经磁处理后,黄药的吸光度增加,有利于化学反应的发生;同时磁化处理增加了水和药剂溶液体系中的溶氧量,促进黄药的氧化分解,使电解质和自由移动的离子数目增多,迁移率加大,溶液的pH值和电导率升高等。而矿物浮选试验结果表明:水系磁化处理对纯黄铜矿的浮选过程影响显著,磁化水时随着磁场强度从0增加到300mT时,黄铜矿的回收率从86.74%提高到90.19%,而磁化丁基黄药时,黄铜矿的回收率从86.90%提高到90.44%。

Through studying the magnetization influence of water and reagents solutions, such as optics, electrics and other properties, the reaction of minerals with reagents and flotation process are influenced. The results show that the magnetized water and reagents solutions has a significant change in the nature, including absorbance, pH value, dissolved oxygen and conductivity. Once reagents are treated with magnetization, the absorbance will increase. It is helpful to chemical reaction. The dissolved oxygen increases after magnetization, so that mostly xanthate may be resolved into dixanthogen and electrolyte. There are more free movement ions, and their mobility increase. And pH value and conductivity increase. The flotation tests show that magnetized water have greatly influence on flotation process with chalcopyrite. When the magnetic field intensity increases from 0 to 300 roT, the recovery rate of chalcopyrite reaches 90.19% from 86.74% with magnetized mater, and when reagents is magnetized, the recovery rate of chalcopyrite reaches 90.44% from 86.90%.