组合捕收剂浮选回收云南某铁尾矿中的磷  

Flotation Recovery of Phosphorous from with Combined Colecters from an Iron Tailings in Yunnan

作　　者：汪洋 唐敏[1] 黄宋魏[1] 王东 吴艳 牛晓英 WANG Yang;TANG Min;HUANG Songwei;WANG Dong;WU Yan;NIU Xiaoying(Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China)

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093

出　　处：《矿产保护与利用》2022年第2期80-84,共5页Conservation and Utilization of Mineral Resources

摘　　要：为了回收利用云南某钙硅质铁尾矿中的磷(P_(2)O_(5)含量18.56%),进行了浮选试验研究。试验结果表明,氧化石蜡皂+油酸钠组合捕收剂增强了捕收能力,改善了泡沫状态。闭路试验结果表明,在磨矿细度-0.074 mm占70%、pH值调整剂Na_(2)CO_(3)用量4 kg/t、抑制剂水玻璃用量2 kg/t、组合捕收剂氧化石蜡皂+油酸钠用量1.6+0.4 kg/t条件下,采用一次粗选三次精选和一次扫选、中矿顺序返回的工艺流程,得到了磷精矿P_(2)O_(5)品位为28.32%、回收率为61.46%的浮选指标。本研究对该类含磷铁尾矿中磷资源的回收利用具有一定的参考意义。In order to recover phosphorus from a calc-siliceous iron tailings in Yunnan,flotation experiments were carried out.The experimental results illustrated that the combination of oxidized paraffin soap and sodium oleate could enhance the collecting ability and improve the foam state.The closed-circuit test results showed that under the conditions of 70%grinding fineness-0.074 mm,4 kg/t dosage of regulator Na_(2)CO_(3),2 kg/t dosage of inhibitor sodium silicate,1.6+0.4 kg/t dosage of combined collector oxidized paraffin soap+sodium oleate,the flotation index of phosphorus concentrate with P_(2)O_(5) grade of 28.32%and recovery of 61.46%was obtained by using the process of one stage roughing,three stages cleaning,one stage scavenging and middling returning in sequence.This study will contribute meaningful reference to the recovery and utilization of phosphorus resources in this kind of iron phosphorus tailings.

关 键 词：铁尾矿 磷 正浮选 组合捕收剂 

分 类 号：TD971.3[矿业工程—选矿] TD923.13