Reverse flotation of collophanite at natural pH using isooctyl polyoxyethylene ether phosphate as a collector

• Autorzy: Li Hongqiang , Zhang Wen , Chen Qian , Huang Peng , Kasomo Richard M. , Zou Ze , Weng Xiaoqing , He Dongsheng , Yang Siyuan , Song Shaoxian

Identyfikatory

DOI

10.37190/ppmp/138517

• Języki publikacji: EN

Abstrakty

EN

Reverse flotation of collophanite at natural pH could significantly decrease the cost of pH regulators. In this study, isooctyl polyoxyethylene ether phosphate (AEP) was tested as a new surfactant in the reverse flotation of collophanite. Micro-flotation tests were conducted, and the adsorption mechanism of the new collector was analysed using X-ray photoelectron spectroscopy (XPS) and zeta potential analyses. The results of the flotation tests demonstrated that AEP could enable dolomite to float under natural pH (pH=7.2) and showed profound selectivity towards dolomite as opposed to fluorapatite. Based on the zeta potential and XPS results, the adsorption phenomena are mainly attributed to calcium active sites on both mineral surfaces. Dolomite possesses more magnesium active sites than fluorapatite, which tend to reinforce the interaction effect between AEP and dolomite. Furthermore, when compared to CO32- ions on the dolomite surface, PO43- ions on the fluorapatite surface tend to exhibit a stronger hindrance to the adsorption of AEP on the fluorapatite surface. This is attributed to their larger volumes and more charges on their surfaces, thereby causing a floatability difference between the two minerals.

Słowa kluczowe

EN

reverse flotation; dolomite; fluorapatite; AEP; selective adsorption

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2021
• Tom: Vol. 57, iss. 4
• Strony: 78--86
• Opis fizyczny: Bibliogr. 21 poz., rys. kolor.

Twórcy

autor

Li Hongqiang

• School of Resource and Safety Engineering, Wuhan Institute of Technology, Wuhan 430205, China
• Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Wuhan Institute of Technology, Wuhan 430205, China

autor

Zhang Wen

• School of Resource and Safety Engineering, Wuhan Institute of Technology, Wuhan 430205, China

autor

Chen Qian

• College of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China

autor

Huang Peng

• Hubei geological research laboratory, Wuhan 430034, China

autor

Kasomo Richard M.

• College of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China

autor

Zou Ze

• School of Resource and Safety Engineering, Wuhan Institute of Technology, Wuhan 430205, China

autor

Weng Xiaoqing

• School of Resource and Safety Engineering, Wuhan Institute of Technology, Wuhan 430205, China

autor

He Dongsheng

• School of Resource and Safety Engineering, Wuhan Institute of Technology, Wuhan 430205, China

autor

Yang Siyuan

• College of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
• Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Wuhan Institute of Technology, Wuhan 430205, China

autor

Song Shaoxian

• College of Resource and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China

Bibliografia

• ABOUZEID, A.Z.M., 2008. Physical and thermal treatment of phosphate ores–an overview.Int. J. Miner. Process. 85, 59–84
• ABDEL-KHALEK, N.A., 2000. Evaluation of flotation strategies for sedimentary phosphates with siliceous and carbonates gangues. Miner. Eng. 13,789-793.
• CHEN, Y., FENG, Q., ZHANG, G., LIU, D., LIU, R., 2018. Effect of Sodium Pyrophosphate on the Reverse Flotation of Dolomite from Apatite. Minerals. 8, 278.
• CHEN, Q., TIAN, M., KASOMO, R.M., LI, H., ZHENG, H., SONG, S., LUO, H., HE, D., 2020. Depression effect of Al(Ⅲ) and Fe(Ⅲ) on rutile flotation using dodecylamine polyxyethylene ether as collector. Colloids Surf. A Physicochem. Eng. Asp. 603, 125269.
• CHEN, Q., TIAN, M., ZHENG, H., LUO, H., JIANG, X., 2020. Flotation of rutile from almandine using sodium fluorosilicate as the depressant. Colloids Surf. A Physicochem. Eng. Asp. 599, 124918.
• FILIPPOVA, I.V., FILIPPOV, L.O., LAFHAJ, Z.B., ZINEB, B.O., 2018. Effect of calcium minerals reactivity on fatty acids adsorption and flotation. Colloids Surf. A Physicochem. Eng. Asp. 545, 157-166.
• FENG, N., ZHAO, T., ZHAO, Y., SONG, P., LI, G., ZHANG, G., 2020. Adsorption and aggregation behavior of aliphatic alcohol polyoxyethylene ether phosphate with different ethylene oxide addition numbers. Colloids Surf. A Physicochem. Eng. Asp. 586, 124215
• HOANG, D.H., HASSANZADEH, A., PEUKER, U.A., RUDOLPH, M., 2019. Impact of flotation hydrodynamics on the optimization of fine-grained carbonaceous sedimentary apatite ore beneficiation. Powder. Technol. 345, 223–233.
• LIU, X., RUAN, Y., LI, C., CHENG, R., 2017b. Effect and mechanism of phosphoric acid in the apatite/dolomite flotation system. Int. J. Miner. Process. 167, 95-102
• LIU, X., LI, C., LUO, H., CHENG, R., LIU, F., 2017a. Selective reverse flotation of apatite from dolomite in collophanite ore using saponified gutter oil fatty acid as a collector. Int. J. Miner. Process. 165, 20–27.
• LIU, W., LIU, W., DAI, S., YANG, T., ZHEN, L., PING, F., 2018. Enhancing the purity of magnesite ore powder using an ethanolamine-based collector: Insights from experiment and theory. J. Mol. Liq. 268, 215-222.
• MERMA, A.G., TOREM, M.L., MORAN, J.J.V., MONTE, M.B.M., 2013. On the fundamental aspects of apatite and quartz flotation using a Gram positive strain as a bioreagent. Miner. Eng. 48, 61–67. 86 Physicochem. Probl. Miner. Process., 57(4), 2021, 78-86
• MOHAMMADKHANI, M., NOAPARAST, M., SHAFAEI, S.Z., AMINI, A., AMINI, E., ABDOLLAHI, H., 2011. Double reverse flotation of a very low grade sedimentary phosphate rock, rich in carbonate and silicate. Int. J. Miner. Process. 100, 157–165.
• OELKERS, E.H., VALSAMI-JONNES, E., RONCAL-HERRERO, T., 2008. Phosphate mineral reactivity: from global cycles to sustainable development. Mineral. Mag. 72, 337–340.
• SANTOS, E.P., DUTRA, A.J.B., OLIVEIRA, J.F., 2015. The effect of jojoba oil on the surface properties of calcite and apatite aiming at their selective flotation. Int. J. Miner. Process. 143, 34–38.
• SIS, H., CHANDER, S., 2003. Reagents used in the flotation of phosphate ores: a critical review. Miner. Eng. 16, 577–585.
• SANTOS, E.P., DUTRA, A.J.B., OLIVEIRA, J.F., 2015. The effect of jojoba oil on the surface properties of calcite and apatite aiming at their selective flotation. Int. J. Miner. Process. 143, 34–38.
• YANG, B., ZHU, Z., SUN, H., YIN, W., YAO, J., 2020. Improving flotation separation of apatite from dolomite using PAMS as a novel eco-friendly depressant. Miner. Eng. 156, 106492.
• YIN, W., SUN, H., HONG, J., CAO, S., SONG, M., 2019. Effect of Ca selective chelator BAPTA as depressant on flotation separation of magnesite from dolomite. Miner. Eng. 144, 106050.
• YANG, B., ZHU, Z., SUN, H., YIN, W., HONG, J., CAO, S., TANG, Y., ZHAO, C., YAO, J., 2020. Improving flotation separation of apatite from dolomite using PAMS as anovel eco-friendly depressant. Miner. Eng. 156, 106492
• ZHAO, T., FENG, N., ZHAO, Y., ZHANG, G., 2020. Adsorption Behavior and Application Performance of Branched Aliphatic Alcohol Polyoxyethylene Ether Phosphate. Colloids Surf. A Physicochem. Eng. Asp. 606, 125482.