铁矿阴离子捕收剂大多采用脂肪酸类捕收剂,工业上需要进行加温浮选才能确保浮选的效果.通过化学改性及复配合成了一种耐低温型铁矿捕收剂CY-20,并与高效速溶型抑制剂CYZ-20应用于山东某铁矿的低温反浮选试验.试验结果表明:CY系列药剂在浮选温度15℃下获得了精矿品位65.86％,回收率95.18％的浮选指标,与30℃时浮选指标基本相当.CY-20具有较强的耐低温性和选择性,可实现整个铁矿阴离子反浮选作业的常温操作,对矿山企业的节能减排、清洁环保生产具有重要的意义.%Most anionic collector for iron ore adopts fatty acid collector which need to be heating flotation to insure effect.A new low-temperature-resistant collector CY-20 was synthesized by chemical modification method and complex formulation and applied in low-temperature reverse-flotation of iron ore with quick-solving depressant CYZ-20.The results indicated that an iron concentrate with Fe grade of 65.86％ and recovery of 95.18％ was obtained by CY-series reagents at the temperature of 15 ℃,which was close to the flotation indexes obtained at the temperature of 30 ℃C,and it was shown that CY-20 collector with an excellent low-temperature resistance and high selectivity can realize normal temperature operation of the whole anionic reverse flotation system,which was important for energy conservation and clean production of mine.
展开▼
