摘要
汤家坪钼矿回收对象辉钼矿受氧化的程度较低,硫化率达到92%左右,主要在裂隙中和脉石粒间呈中细粒嵌布,但粒度分布范围较宽,主要集中在0.01～0.15mm,-40μm约有30%-,10μm含量较少,为了降低选矿成本,这种单金属低品位矿应尽量粗磨浮选,由于钼矿物与黄铁矿等硫化矿关系比较密切,因此,为了实现粗磨抛尾,通过添加CMT捕收剂,将与脉石及黄铁矿等硫化矿物连生的连生体选出,获得钼回收率尽可能高的粗精矿,推荐的工艺流程为:粗磨(65%-74μm)浮选、钼粗精矿细磨(95%-38μm)七次精选。小型闭路试验取得的指标为,原矿含钼0.103%,钼精矿钼品位为51.26%,回收率为91.06%。
The molybdenite of Tangjiaping Ore has low oxidation and sulfuration higher than 92% ,the dissemination size of mineral is 0.01-0.15mm with about 30% -40μm and a little part -10μm.In order to reduce the processing cost a coarse grinding was introduced with a new kind of Mo collector named CMT to promote collecting the locked particle, and achieved a higher Mo recovery. The commendatory flowsheet is as follows： first a coarse grinding（65%-741μm）then the Mo rough concentrate fine grinding（95%-381μm） follows seven cleanings. The test indexes were obtained that Mo concentrate grade is 51.26% and recovery is 91.06% with the feed grade 0.103%.
出处
《有色金属（选矿部分）》
CAS
2006年第6期6-9,5,共5页
Nonferrous Metals（Mineral Processing Section）
关键词
钼矿
粗磨浮选
CMT捕收剂
molybdenite
collector CMT
coarse grinding
