脉石矿物类型对白钨矿精选工艺的影响

发布时间：2018-05-28 15:01

本文选题：白钨矿 + 含钙矿物　；参考：《有色金属(选矿部分)》2016年01期

【摘要】：在考察加温与常温精选过程中白钨矿与其它含钙盐类矿物浮游性规律的基础上,研究矿石性质与精选方法之间的联系,并从溶液化学及晶体化学角度对精选技术原理做了进一步探讨。研究表明,在白钨精选过程中,当矿石类型为白钨矿—石英(或硅酸盐矿物)时,白钨矿的精选即可以采用常温法,也可以采用加温法,两种方法均可获得较好的分选效果。当矿石中萤石含量较高时,精选方法的不同对白钨矿的浮选指标影响很大,加温法的浮选效果明显优于常温法。当矿石中方解石含量较高时,无论采用常温法还是加温法,方解石均不容易被硅酸钠所抑制,可通过使用组合抑制剂强化对方解石的抑制。与加温法相比,常温法的搅拌时间要大大加长,需强搅拌,并且其浮选指标不如加温法稳定。
[Abstract]:On the basis of investigating the planktonic characteristics of scheelite and other calcium-bearing salts in the process of heating and cleaning at room temperature, the relationship between ore properties and cleaning methods is studied. The principle of cleaning technology is further discussed from the point of view of solution chemistry and crystal chemistry. The results show that when the ore type is scheelite quartz (or silicate mineral) in the process of scheelite cleaning, the separation of scheelite can be achieved either by normal temperature method or by heating method. When the content of fluorite in ores is high, the flotation index of scheelite is greatly affected by different cleaning methods, and the flotation effect of heating method is obviously better than that of normal temperature method. When the content of calcite in the ore is high, the calcite is not easily inhibited by sodium silicate either by normal temperature method or by heating method, and the inhibition of calcite can be strengthened by the combination of inhibitors. Compared with the heating method, the stirring time of the normal temperature method is much longer, and the flotation index is not as stable as the heating method.
【作者单位】：北京矿冶研究总院矿物加工科学与技术国家重点实验室;
【基金】：“十二五”国家科技支撑计划项目(2012BAB10B03)
【分类号】：TD954

【相似文献】