新型捕收剂浮选云南个旧矽卡岩型白钨矿试验研究

以云南个旧卡房矽卡岩型白钨矿为研究对象，针对原工艺GY-10捕收剂浮选体系下钨总回收率偏低的问题，为提高钨资源综合利用水平，应用新型白钨矿捕收剂KF-1进行了选矿试验研究。结果表明，脱硫浮选后，钨常温粗选碳酸钠、水玻璃和捕收剂用量分别为2 000 g/t、4 000 g/t和150 g/t，钨加温精选温度为85 ℃，保温时间为1 h，钨加温精选氢氧化钠、水玻璃和捕收剂用量分别为200 g/t、1 200 g/t和3 g/t，最终获得了钨精矿品位55.65%、钨回收率为77.35%的技术指标，与GY-10相比，钨总回收率提高了14百分点，实现了卡房矽卡岩型白钨矿的高效综合利用。 

Experimental Study on Flotation of Skarn Scheelite in Gejiu City,Yunnan Province with a New Hydroxamic Acid Collector

In order to improve the comprehensive utilization level of tungsten resources, a new collector KF-1 was used to recover the skarn scheelite ore in Kafang mining area, Gejiu City, Yunnan Province. The results show that after the desulfurization flotation, the roughing tests at room temperature have been conducted, and the dosage of sodium carbonate, sodium silicate and collector has been determined as 2 000 g/t, 4 000 g/t and 150 g/t, respectively. Then after heating the coarse concentrate to 85 ℃ and holding for 1 h, the cleaning tests have been conducted, and the dosage of sodium hydroxide, sodium silicate and collector has been determined as 200 g/t, 1 200 g/t and 3 g/t, respectively. Finally, a tungsten concentrate assaying 55% WO₃ with tungsten recovery of 77% has been obtained. Compared with GY-10, the total recovery of tungsten has been increased by 14%, and the efficient comprehensive utilization of skarn scheelite in Kafang mining area has been realized.