Low Temperature Flotation of a Low-grade Phosphate Rock in Yichang by Modified Fatty Acids

LIU Yutong; LUO Huihua; ZHAO Jun; PENG Liqing; LIU Ju; CEN Mei; LI Fengyuan

doi:10.13779/j.cnki.issn1001-0076.2023.06.012

2023 Vol. 43, No. 6

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Article navigation > Conservation and Utilization of Mineral Resources > 2023 > 43(6): 100-106

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LIU Yutong, LUO Huihua, ZHAO Jun, PENG Liqing, LIU Ju, CEN Mei, LI Fengyuan. Low Temperature Flotation of a Low-grade Phosphate Rock in Yichang by Modified Fatty Acids[J]. Conservation and Utilization of Mineral Resources, 2023, 43(6): 100-106. doi: 10.13779/j.cnki.issn1001-0076.2023.06.012

Citation:

LIU Yutong, LUO Huihua, ZHAO Jun, PENG Liqing, LIU Ju, CEN Mei, LI Fengyuan. Low Temperature Flotation of a Low-grade Phosphate Rock in Yichang by Modified Fatty Acids[J]. Conservation and Utilization of Mineral Resources, 2023, 43(6): 100-106. doi: 10.13779/j.cnki.issn1001-0076.2023.06.012

Low Temperature Flotation of a Low-grade Phosphate Rock in Yichang by Modified Fatty Acids

School of Resources and Safety Engineering, Wuhan Institute of Technology, Wuhan 430074, China

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Corresponding author: LUO Huihua, luohh68@sina.cn

Received Date: 08 June 2023

Publish Date: 25 December 2023

Abstract

Abstract

In order to develop the low−grade colloidal phosphate ore resources with low magnesium and high sesquioxide in a mine in Yichang of Hubei Province, cotton oil fatty acid soap was used as raw material and compounded with polyoxyethylene ether nonionic surfactant to obtain a good selective anionic collector MON−135, which was used to conduct a pilot study of low temperature direct and reverse flotation. The experimental results showed that at a flotation pulp temperature of 14 ℃ and a grinding fineness of −0.074 mm 93.7%, a process was adopted involving direct flotation with one roughing and one cleaning and one scavenging followed by one roughing and one scavenging in reverse flotation, the dosages of sodium carbonate, water glass and MON−135 for direct flotation roughing were 7.0 kg/t, 3.0 kg/t and 1.4 kg/t, respectively; the dosage of MON−135 for positive flotation sweeping was 0.5 kg/t; the dosages of sulfuric acid and collector LAA−T for reverse flotation roughing were 9.0 kg/t and 0.9 kg/t, respectively; and the dosage of sulfuric acid for sweeping was 2.5 kg/t. the phosphate concentrate P₂O₅ grade of 32.61% and recovery of 92.67% were obtained in the closed circuit test. The results show that the use of low temperature collector can effectively flotation collophane ore at a lower flotation temperature, and can obtain a better beneficiation index.
- low−grade collophane ore /
- low−temperature direct /
- reverse flotation /
- collector

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References

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