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中文摘要: 金常伴生于硫化矿中，当载金矿物以微细粒级存在时，常规浮选难以回收。研究显示，微泡浮选是解决微细粒矿物
难选问题的有效手段。采用超声法生成微纳米气泡进行微泡浮选，考察了不同粒级辉锑矿、黄铁矿和毒砂的浮选行为，结果表明，
在未引入纳米气泡时 -74+45、-45+38 和 -38+30 μm 的的辉锑矿、黄铁矿和毒砂浮选回收率均大于 80%，而小于 30 μm 的辉
锑矿、黄铁矿和毒砂在没有纳米气泡存在时难以上浮。引入微纳米气泡后，大于 30 μm 的辉锑矿、黄铁矿和毒砂浮选回收率均呈
现了小幅度上升，而 -30+15 μm 和 -15 μm 的辉锑矿、黄铁矿和毒砂浮选回收率显著提升，在超声 1~3 min 时回收率提升最大，
而后随着超声时间的增加，浮选回收率趋于稳定。采用微泡浮选对新疆且末某锑金矿进行选别，得到精矿 Sb 品位为 5. 13%、回
收率 91. 26%，Au 品位 57. 54 g/t、回收率 84. 91% 的选别指标，相较于常规浮选，Sb 回收率提高了 1. 98 个百分点，Au 回收率提
升了 4. 49 个百分点。
Abstract:Gold is often associated with sulfide ores. When the gold-bearing minerals exist in the form of
fine particles，it is difficult to recover them by conventional flotation. The study shows that microbubble flotation is
an effective means to solve the problem of refractory fine minerals. The flotation behavior of antimonite，pyrite and
arsenopyrite with different particle size fractions is investigated by microbubble flotation using micro-nano bubbles generated by ultrasonic method. The results show that the flotation recovery of antimonite，pyrite and arsenopyrite
with particle sizes of -74+45，-45+38 and -38+30 μm is more than 80% without nano-bubbles. However，
stibnite，pyrite and arsenopyrite，which are smaller than 30 μm，are difficult to float in the absence of nanobubbles.
The flotation recoveries of stibnite，pyrite and arsenopyrite above 30 μm increased slightly after the introduction of
micro-nanobubbles，while the flotation recoveries of stibnite，pyrite and arsenopyrite at -30+15 μm and -15 μm
increased significantly，with the maximum increase in the ultrasonic time of 1?3 min，and then tended to be stable
with the increase of ultrasonic time. The microbubble flotation was used to separate an antimony-gold ore in Qiemo，
Xinjiang，and the separation indexes of concentrate Sb grade of 5. 13% with recovery of 91. 26% and Au grade of
57. 54 g/t with recovery of 84. 91% have been obtained. Compared with conventional flotation，the Sb recovery
increased by 1. 98 percentage points and the Au recovery increased by 4. 49 percentage points.
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引用文本：
许炜光,李文娟,韩宝成,王森,温建康,朱伟,代启航,蔡锣璐.微泡浮选促进细粒级锑金矿物回收的研究[J].有色金属（选矿部分）,2025(9):138-144.
XU Weiguang,LI Wenjuan,HAN Baocheng,WANG Miao,WEN Jiankang,ZHU Wei,DAI Qihang,CAI Liulu.Research on Micro-Nanobubble Flotation to Promote the Recovery of Fine-grained Antimony Gold Minerals[J].Nonferrous Metals(Mineral Processing Section),2025(9):138-144.
许炜光,李文娟,韩宝成,王森,温建康,朱伟,代启航,蔡锣璐.微泡浮选促进细粒级锑金矿物回收的研究[J].有色金属（选矿部分）,2025(9):138-144.
XU Weiguang,LI Wenjuan,HAN Baocheng,WANG Miao,WEN Jiankang,ZHU Wei,DAI Qihang,CAI Liulu.Research on Micro-Nanobubble Flotation to Promote the Recovery of Fine-grained Antimony Gold Minerals[J].Nonferrous Metals(Mineral Processing Section),2025(9):138-144.
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