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Experimental Study on Reverse Flotation of Qidashan Iron Ore with Novel Low-Temperature Collector
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Yechao ZHENG, Tonglin ZHAO, Shuang YI, Baoxu SONG, Fangyuan MA, Nan NAN
Mining and Metallurgical Engineering | 2025, 45(3) : 99 - 103
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Mining and Metallurgical Engineering | 2025, 45(3): 99-103
• MINERAL PROCESSING •
Experimental Study on Reverse Flotation of Qidashan Iron Ore with Novel Low-Temperature Collector
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Yechao ZHENG, Tonglin ZHAO, Shuang YI, Baoxu SONG, Fangyuan MA, Nan NAN
Affiliations
  • School of Mining Engineering, University of Science and Technology Liaoning, Anshan 114044, Liaoning, China
Published: 2025-06-01 doi: 10.3969/j.issn.0253-6099.2025.03.016
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A novel low-temperature collector was adopted in the reverse flotation of Qidashan iron ore. Based on a reverse flotation condition test at low temperature, closed-circuit reverse flotation tests at room temperature and low temperature, as well as the study on the mineral adsorption mechanism, it is found that under conditions including pulp temperature at 10 ℃, pH of 11.0, caustic starch as a depressor at an amount of 600 g/t, CaO as an activator at an amount of 750 g/t, CH collector at an amount of 1 050 g/t, and pulp density of 30%, the reverse flotation consisting of one stage of roughing and one stage of cleaning can produce an iron concentrate grading 68.32% Fe at 70.76% recovery；the closed-circuit tests by adopting a process consisting of one stage of roughing, one stage of cleaning and three stages of scavenging at 10 ℃ can yield an iron concentrate grading 66.32% Fe at 85.14% recovery；while the close-circuit test at room temperature (25 ℃) results in 85.45% Fe recovery into an iron concentrate grading 67.31% Fe. It has proven that CH collector can bring good flotation effect at low temperatures. Infrared spectroscopy analysis, quartz contact angle testing and surface tension measurements indicate that CH collector has a stronger adsorption on quartz surfaces compared to traditional anionic collector sodium oleate.

reverse flotation  /  iron ore  /  collector  /  low-temperature collector  /  low-temperature flotation  /  Qidashan iron ore
Yechao ZHENG, Tonglin ZHAO, Shuang YI, Baoxu SONG, Fangyuan MA, Nan NAN. Experimental Study on Reverse Flotation of Qidashan Iron Ore with Novel Low-Temperature Collector[J]. Mining and Metallurgical Engineering, 2025 , 45 (3) : 99 -103 . DOI: 10.3969/j.issn.0253-6099.2025.03.016
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Year 2025 volume 45 Issue 3
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doi: 10.3969/j.issn.0253-6099.2025.03.016
  • Receive Date：2024-12-25
  • Online Date：2026-03-19
  • Published：2025-06-01
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  • Received：2024-12-25
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    School of Mining Engineering, University of Science and Technology Liaoning, Anshan 114044, Liaoning, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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