Purification of Natural Flake Graphite with Acid Leaching Method using a Two-step Method of Introducing Additives | ||
| Journal of Mining and Environment | ||
| مقاله 1، دوره 16، شماره 2، خرداد 2025، صفحه 371-385 اصل مقاله (5.39 M) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22044/jme.2024.14294.2670 | ||
| نویسندگان | ||
| Jiaye Li1، 2؛ Jing Zhao* 1، 2؛ Zebin Wang1، 2؛ Huan Liu1، 2؛ Qing Wen1، 2؛ Jinling Yin1، 2؛ Ze Li3؛ Yang Lei3؛ Guiling Wang1، 2 | ||
| 1Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China, Guiling Wang, Jing Zhao | ||
| 2b Heilongjiang Hachuan Carbon Materials Technology Co., LTD, National Quality Supervision and Inspection Center Of Graphite Products, No. 88 Kangxin Road, Jiguan District,Jixi City, Heilongjiang Province, 158100, P. R.Chinac | ||
| 3Heilongjiang transportation investment group Co., LTD, No. 899, Innovation 3rd Road, Songbei District, Harbin, Heilongjiang Province, 150025, P. R. China | ||
| چکیده | ||
| Traditional graphite has safety and environmental issues, associated with fluorine purification. To address these issues, an energy-saving and efficient graphite purification process can be explored through the acid leaching method with composite additives. The acid leaching process was studied and optimized in detail using the controlled variable method including the effects of the soaking time and temperature on the graphite purification process. Then the response surface method was used to simulate the orthogonal experiment of graphite purification to verify the correctness of the single-factor, experiment. The purity and micromorphology of the graphite samples at each stage were characterized and tested. The experimental results showed that the optimal liquid-to-solid ratio of the acid solution and graphite was 20:1, which could make the fixed carbon content reach 99.77%. On the basis of these optimal process conditions, the addition types were further explored. The experimental result showed that the best addition was ascorbic acid and EDTA, which could reduce the content of various impurities in the graphite raw material without destroying the microstructure of the graphite. Benefitting from the addition of compound additives in the two-step process, almost all the metal ions were leached from the graphite. After the acid and water leaching, the fixed carbon content of graphite could reach 99.96%. The process parameters proposed in this paper were scientifically verified by both the single-factor and multi-factor experiments, and innovative and effective additives were introduced in different steps to make the graphite purity break through 99.9%, which was difficult to reach by the traditional method. | ||
| کلیدواژهها | ||
| graphite؛ purification؛ alkali-acid process؛ response surface methodology؛ auxiliary agent | ||
| مراجع | ||
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[1]. Cheng, Q.; Marchetti, B.; Chen, X.; Xu, S.; Zhou, X.-D., (2022). Separation, purification, regeneration and utilization of graphite recovered from spent lithium-ion batteries - A review. Journal of Environmental Chemical Engineering 10 (2), 107312.
[2]. Deng, J.; Gu, Z.; Wu, L.; Zhang, Y.; Tong, Y.; Meng, F.; Sun, L.; Zhang, H.; Liu, H., (2023). Efficient purification of graphite industry wastewater by a combined neutralization-coagulation-flocculation process strategy: Performance of flocculant combinations and defluoridation mechanism. Separation and Purification Technology 326, 124771.
[3]. Jara, A. D.; Kim, J. Y., (2020). Chemical purification processes of the natural crystalline flake graphite for Li-ion Battery anodes. Materials Today Communications 25, 101437.
[4]. Liu, Y.; Fu, Y.; Zheng, L.; Wang, M.; Wang, Z.; Yang, S.; Liu, J.; Gong, X., (2023). Leaching characteristics and solidification strategy of heavy metals in solid waste from natural graphite purification. Environmental Science and Pollution Research 30 (11), 30892-30904.
[5]. Qian, Y.; Xiaochen, Z.; Kan, K., (2024). Research progress on purification of natural flake graphite. China Mining Magazine 33 (7), 254-260.
[6]. Chehreh Chelgani, S.; Rudolph, M.; Kratzsch, R.; Sandmann, D.; Gutzmer, J., (2016). A Review of Graphite Beneficiation Techniques. Mineral Processing and Extractive Metallurgy Review 37 (1), 58-68.
[7]. Zhang, Y.; Chen, Z.; Xie, K.; Chen, X.; Hu, Y.; Ma, W., (2023). Purification of Waste Graphite from Crucibles Used in Photovoltaic Crystallization by an Alkali-Acid Method. Metals 13 (7), 1180.
[8]. Al-Sairafi, F. A.; Jiang, C.; Zhong, Z.; Saleh, B., (2022). Study on purification of flake graphite by heat activation and hydrofluoric acid. Advances in Materials and Processing Technologies 8 (4), 4564-4578.
[9]. Liu, Y.; Tong, Z.; Ni, M.; Ren, X.; Bu, X.; Shao, H.; Chehreh Chelgani, S., (2023). Leaching kinetics of impurity removal from aphanitic graphite by HCl leaching. Separation Science and Technology 58 (8), 1502-1515.
[10]. Chen, Y.-L.; Chiang, W.-P.; Lin, C.-H.; Wu, I.-M.; Chang, J.-E., (2024). Recovery and purification of kish graphite from steelmaking dust by using acid leaching with physical auxiliary methods. Sustainable Environment Research 34 (1), 26.
[11]. Shen, K.; Chen, X.; Shen, W.; Huang, Z.-H.; Liu, B.; Kang, F., (2021). Thermal and gas purification of natural graphite for nuclear applications. Carbon 173, 769-781.
[12]. Lv, Y.; Liu, Y.; Ma, B.; Wang, C.; Qiu, Z.; Chen, Y., (2023). Emission reduction treatment of chlorine-containing waste gas during the chlorination roasting process of lepidolite: thermodynamic analysis and mechanism investigation. Separation and Purification Technology 315, 123686.
[13]. Xiyue, Z.; Hongjuan, S.; Tongjiang, P.; Li, Z.; Bo, L., (2024). Purification mechanism of microcrystalline graphite and dissolution of non-carbon impurity during alkali autoclave-acid leaching. Physics and Chemistry of Minerals 51 (3), 25.
[14]. Xie, W.; Wang, Z.; Kuang, J.; Xu, H.; Yi, S.; Deng, Y.; Cao, T.; Guo, Z., (2016). Fixed carbon content and reaction mechanism of natural microcrystalline graphite purified by hydrochloric acid and sodium fluoride. International Journal of Mineral Processing 155, 45-54.
[15]. Jara, A. D.; Betemariam, A.; Woldetinsae, G.; Kim, J. Y., (2019). Purification, application and current market trend of natural graphite: A review. International Journal of Mining Science and Technology 29 (5), 671-689.
[16]. Wang, H.; Feng, Q.; Tang, X.; Liu, K., (2016). Preparation of high-purity graphite from a fine microcrystalline graphite concentrate: Effect of alkali roasting pre-treatment and acid leaching process. Separation Science and Technology 51 (14), 2465-2472.
[17]. Yu, K.; Ahn, K. H.; Song, C. K.; Aregay, M. G.; Yoon, T. J.; Lee, Y.-W., (2022). Purification of synthetic diamond and graphite mixtures in catalytic supercritical water oxidation processes. Diamond and Related Materials 129, 109371.
[18]. Bao, C.; Shi, K.; Xu, P.; Yang, L.; Chen, H.; Dai, Y.; Liu, H., (2021). Purification effect of the methods used for the preparation of the ultra-high purity graphite. Diamond and Related Materials 120, 108704.
[19]. Zhao, S.; Cheng, S.; Xing, B.; Ma, M.; Shi, C.; Cheng, G.; Meng, W.; Zhang, C., (2022). High efficiency purification of natural flake graphite by flotation combined with alkali-melting acid leaching: application in energy storage. Journal of Materials Research and Technology 21, 4212-4223.
[20]. Sybir, A.; Fedorov, S.; Hubynskyi, M.; Hubynskyi, S.; Koval, S.; Sukhyy, K.; Foris, S., (2020). Thermal purification of natural graphite by means of high-speed heating. Voprosy Khimii i Khimicheskoi Tekhnologii 3, 178-182.
[21]. Duan, S.; Wu, X.; Min, X.; Huang, Z.; Yue, T.; Yue, W.; Fang, M.; Liu, Y., (2019). Effect of purity and proportion of microcrystalline graphite ore on the electrical, mechanical and tribological performance of copper-carbon composites. Materials Research Express 6 (12), 125604.
[22]. Chen, Q.; Li, Y. In Study on Purification and Modification Processing Technology of Microcrystalline Graphite, IOP Conference Series: Earth and Environmental Science, IOP Publishing: 2021; p 012040.
[23]. Kaitano, H. V.; Mudono, S., (2023). Investigating on a Process Method of Beneficiating and Increasing the Graphite Purity to 99% Grade. Journal of Analytical Sciences, Methods and Instrumentation 13 (04), 39-52.
[24]. Guo, H. F.; Chao, B.; Zhao, Z. Q.; Nan, D. In Research on Purification Technology of Ultra-Large Flake Graphite Based on Alkali-Acid Method, Materials Science Forum, Trans Tech Publ: 2021; pp 104-113.
[25]. Lu, X.; Forssberg, E., (2002). Preparation of high-purity and low-sulphur graphite from Woxna fine graphite concentrate by alkali roasting. Minerals engineering 15 (10), 755-757.
[26]. Shen, K.; Cao, X.; Huang, Z.-H.; Shen, W.; Kang, F., (2021). Microstructure and thermal expansion behavior of natural microcrystalline graphite. Carbon 177, 90-96.
[27]. Amaraweera, T.; Balasooriya, N.; Wijayasinghe, H.; Attanayake, A.; Dissanayake, M., (2013). Purity enhancement of Sri Lankan vein graphite for lithium-ion rechargeable battery anode. Proceedings to 29th Technical Sessions of Geological Society of Sri Lanka 101, 104.
[28]. Chen, Z.; Ren, Z.; Zheng, R.; Gao, H.; Ni, B.-J., (2022). Migration behavior of impurities during the purification of waste graphite powders. Journal of Environmental Management 315, 115150. | ||
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