(1. 江西理工大學(xué) 資源與環(huán)境工程學(xué)院，贛州 341000；
2. 北京科技大學(xué) 冶金與生態(tài)工程學(xué)院，北京 100083)
摘 要: 通過(guò)磁場(chǎng)對(duì)水及藥劑溶液的磁化處理，使得水及藥劑溶液的光學(xué)、電學(xué)及其它性質(zhì)發(fā)生變化，研究磁化處理對(duì)藥劑和礦物作用的影響，以及對(duì)浮選過(guò)程的影響。測(cè)試分析結(jié)果表明：水系磁化處理能夠引起水及藥劑溶液體系的吸光度、pH值、溶氧量和電導(dǎo)率等性質(zhì)的變化；水和黃藥溶液經(jīng)磁處理后，黃藥的吸光度增加，有利于化學(xué)反應(yīng)的發(fā)生；同時(shí)磁化處理增加了水和藥劑溶液體系中的溶氧量，促進(jìn)黃藥的氧化分解，使電解質(zhì)和自由移動(dòng)的離子數(shù)目增多，遷移率加大，溶液的pH值和電導(dǎo)率升高等。而礦物浮選試驗(yàn)結(jié)果表明：水系磁化處理對(duì)純黃銅礦的浮選過(guò)程影響顯著，磁化水時(shí)隨著磁場(chǎng)強(qiáng)度從0增加到300 mT時(shí)，黃銅礦的回收率從86.74%提高到90.19%，而磁化丁基黃藥時(shí)，黃銅礦的回收率從86.90%提高到90.44%。
關(guān)鍵字: 磁化；黃藥；電導(dǎo)率；吸光度；浮選
（1. Resources and Environment Engineering Institute, Jiangxi University of Science and Technology,
Ganzhou 341000, China;
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,
Beijing 100083, China）
Abstract: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 mT, 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%.
Key words: magnetization; xanthate; conductivity; absorbance; flotation
