Experimental Study on Improving Flotation Index of Microcrystalline Graphite by Sodium Chloride
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摘要:
微晶石墨又称不定型石墨，因结晶太小具有微晶结构而得名。微晶石墨的嵌布粒度细小，细磨矿提纯时浮选泡沫容易与细粒的脉石物理聚合，导致浮选提纯效果不够理想，特别是因固定碳含量越高需要越多的起泡剂，使得浮选泡沫粘度就越高，泡沫产品中物理夹带越严重，造成目前生产中存在精选流程长、产品品位低、生产功耗高等问题。本文对比研究了不同氯化钠与2#油用量体系下浮选泡沫半衰期的变化规律，确定了添加氯化钠具有改善微晶石墨浮选指标的优良作用，并采用实际矿石进行了验证，该研究成果可为微晶石墨浮选工业应用及推广提供参考依据。
Abstract:Microcrystalline graphite, also known as amorphous graphite, is named for its small crystal structure. The particle size of the microcrystalline graphite is small, and the flotation foam is easy to physically polymerize with the fine gangue during fine grinding and purification, resulting in unsatisfactory flotation and purification effect. Especially because the higher the fixed carbon content is, the higher the viscosity of the flotation foam is, the heavier the physical entrainment in the foam product, resulting in the current production problems such as long selection process, low product quality, and high production power consumption.In this paper, the variation rule of half-life of flotation froth under different dosage of sodium chloride and 2# oil is compared and studied. It is confirmed that adding sodium chloride can improve the flotation index of microcrystalline graphite, and is verified by actual ore. The research results can provide reference for industrial application and popularization of microcrystalline graphite flotation.
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Key words:
- Microcrystalline graphite /
- Sodium chloride /
- Flotation /
- Improving flotation index
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[1] 李哲. 鳞片石墨浮选特性及工艺研究[D]. 北京: 中国矿业大学(北京), 2010.
LI Z. Research on the characteristics and technology of flake graphite flotation [D]. Beijing: China University of Mining and Technology (Beijing), 2010.
[2] 沈万慈, 康飞宇, 黄正宏, 等. 石墨产业的现状与发展[J]. 中国非金属矿工业导刊, 2013(2):1-3. doi: 10.3969/j.issn.1007-9386.2013.02.001
SHEN W C, KANG F Y, HUANG Z H, et al. Current status and development of graphite industry[J]. China Non-metallic Mineral Industry Guide, 2013(2):1-3. doi: 10.3969/j.issn.1007-9386.2013.02.001
[3] 张韬, 程飞飞, 于阳辉. 内蒙古某低品位大鳞片石墨矿选矿试验研究[J]. 矿产综合利用, 2019(1):57-60. doi: 10.3969/j.issn.1000-6532.2019.01.012
ZHANG T, CHENG F F, YU Y H. Experimental research on beneficiation of a low-grade and large flake graphite ore in inner mongolia[J]. Multipurpose Utilization of Mineral Resources, 2019(1):57-60. doi: 10.3969/j.issn.1000-6532.2019.01.012
[4] 周绍奇, 伏少鹏, 卜祥宁, 等. 超声乳化煤油乳滴尺寸对泡沫性质及隐晶质石墨浮选的影响[J]. 矿产综合利用, 2020(2):182-187. doi: 10.3969/j.issn.1000-6532.2020.02.033
ZHOU S Q, FU S P, BU X N, et al. Effect of droplet size of ultrasonic emulsification kerosene emulsion on foam properties and the flotation of ccryptocrystalline graphite[J]. Multipurpose Utilization of Mineral Resources, 2020(2):182-187. doi: 10.3969/j.issn.1000-6532.2020.02.033
[5] 陈智杰, 喻福涛, 高惠民, 等. 陕西某石墨矿工艺矿物学与选矿研究[J]. 矿产综合利用, 2019(1):66-69. doi: 10.3969/j.issn.1000-6532.2019.01.014
CHEN Z J, YU F T, GAO H M, et al. Research on process mineralogy and beneficiation of a graphite ore in Shaanxi province[J]. Multipurpose Utilization of Mineral Resources, 2019(1):66-69. doi: 10.3969/j.issn.1000-6532.2019.01.014
[6] 宋宁波, 孙传尧, 印万忠, 等. 海水对矿物浮选影响的基因特性分析[J]. 金属矿山, 2020(6):2-8.
SONG N B, SUN C Y, YIN W Z, et al. Genetic analysis of the influence of seawater on mineral flotation[J]. Metal Mine, 2020(6):2-8.
[7] 冉进财, 李国胜, 曹亦俊, 等. 无机盐阳离子对粉煤灰浮选泡沫稳定性的影响研究[J]. 煤炭学报, 2015, 40(3):646-651.
RAN J C, LI G S, CAO Y J, etc. Study on the influence of inorganic salt cations on the foam stability of fly ash flotation[J]. Journal of China Coal Society, 2015, 40(3):646-651.
[8] Jeldres R I, Forbes L, Cisternas L A. Effect of seawater on sulfideore flotation: a revie[J]. Mineral Processing and Extractive Metal-lurgy Review, 2016, 37(6):369-384. doi: 10.1080/08827508.2016.1218871
[9] 殷俊良. 国外利用海水选矿的经验[J]. 有色矿山, 1982(6):28-32.
YIN J L. Experience of using seawater for mineral processing abroad[J]. Nonferrous Mines, 1982(6):28-32.
[10] 宋水祥, 罗溪梅, 马鸣泽, 等. 泡沫稳定性研究进展[J]. 矿冶, 2019, 28(1):30-34.
SONG S X, LUO X M, MA M Z, et al. Research progress in foam stability[J]. Mining and Metallurgy, 2019, 28(1):30-34.
[11] 程文学, 邢晓凯, 左丽丽, 等. 液体泡沫性能测试方法综述[J]. 油田化学, 2014, 31(1):152-158.
CHENG W X, XING X K, ZUO L L, et al. Summary of liquid foam performance testing methods[J]. Oilfield Chemistry, 2014, 31(1):152-158.
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