摘要
对传统黄药进行改性,合成了一种新型高效的酯类捕收剂DTC,并以此捕收剂对某铜钼尾矿进行了浮选工艺条件实验和闭路实验。在磨矿细度为-0.074mm 75%,石灰用量500g/t,水玻璃用量1000g/t,捕收剂DTC用量24g/t,起泡剂2#油用量48g/t的最佳条件下,闭路实验采用"预先脱泥-铜钼部分优先浮选—铜钼硫混合浮选再分离"的浮选工艺流程获得了铜钼混合精矿1含铜18.53%,含钼4.03%,铜、钼回收率分别为22.30%、45.20%;铜钼混合精矿2含铜2.39%,含钼0.20%,铜、钼回收率分别为3.12%、2.43%的较好浮选指标。采用紫外吸收光谱和红外光谱测试对捕收剂的浮选作用机理进行了研究。结果表明,该新型捕收剂对铜离子具有特性吸附,捕收能力强,是一种高效选择性药剂。
A new high selectivity collector DTC which was synthesized by improving xanthate was introduced to the beneficiation tests on a copper-molybdenum tailings ore.At the optimum conditions of grinding fineness-0.074 mm 75%,slime 500g/t,Sodium silicate 1000g/t,collector DTC 24g/t,frother 2^#oil 48g/t,the closed-circuit experiments obtained a good results that the Copper molybdenum mixed concentrate 1contained Cu 18.53%,Mo 4.03%,with recovery of 22.30% for Cu and 45.20% for Mo respectively,and the Copper molybdenum mixed concentrate 2contained Cu 2.39%,Mo 0.20%,with Cu recovery 3.12% and Mo recovery 4.03% with a process of＂raw ore-desliming,grit Cu-Mo part-selective flotation,Cu Mo S bulk flotation followed by Cu Mo-S separation ＂.In addition,the UV-vis spectra and FTIR were also executed to research the mechanism of DTC.The results demonstrated that this new collector which showed a good affinity to Cu^2＋ions and a powerful collecting ability was a high selectivity collector.
出处
《中国矿业》
北大核心
2016年第2期95-101,共7页
China Mining Magazine
基金
国家高技术研究发展计划(863计划)项目资助(编号:2013-AA064101)
关键词
铜钼尾矿
捕收剂DTC
机理
红外光谱
copper-molybdenum tailings ore
collector DTC
mechanism
FTIR
