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Study on Preparation Technology and Heat Conduction Mechanism of High-Purity & Ultra-Fine Alumina Powder from Scrap Aluminum Cans

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In view of the increasing scarcity of bauxite resources in China, the high energy consumption and high pollution of electrolytic aluminum, and the requirements for energy conservation and environmental protection, aluminum recycling and high-value utilization of its derivatives have evolved into a crucial development requirement for the aluminum industry in the future. As an important part of the development of recycled aluminum resources, the high-value application of scrap aluminum cans has always been a hot research topic in various recycled aluminum processing enterprises and scientific research units. The traditional regeneration system of waste cans includes a series of complex technological processes such as pretreatment, paint removal, smelting system and casting system, which is difficult to control in the middle of the process. Most of the recycled scrap aluminum cans are cast and downgraded for later use, except for a part of them used as alloy materials for new cans. In this paper, combined with the research on the preparation of metal aluminum alkoxide, combined with recrystallization heat conduction to further study the effective dissolution or adsorption how to remove impurity elements to obtain high-purity aluminum alcohol salt mechanism research, and thermal effect of alcohols with different carbon chains on the synthesis of high-purity aluminum alkoxide was further investigated. Moreover, the changes in morphology and pore size distribution of hydrolyzed alumina precursor materials under different hydrothermal temperature conditions were discussed by means of the alkoxide hydrolysis-sol-gel process. Eventually, the aluminum alkoxide was obtained by the reaction of waste cans with isopropanol and heavy crystal thermal conductivity, and the high-purity aluminum alkoxide was purified by vacuum distillation. Under the hydrothermal condition of 160°C, the high-purity alumina material with a purity of 99.99% and an original crystal size of 200nm was prepared.
Rocznik
Strony
158--164
Opis fizyczny
Bibliogr. 15 poz., il., rys., tab., wykr.
Twórcy
  • Dalian Jiaotong University, China
  • Institute of Solid State Chemistry and Mechanochemistry, Russia
autor
  • Dalian Jiaotong University, China
autor
  • State Key Laboratory of New Ceramics & Fine Processing, China
Bibliografia
  • [1] Duan, R. (2016). Research on key technology of regenerating 3104 aluminum alloy for cans. TaiYuan: North University of China.
  • [2] Yang, L. (2020). Discussion on recycling of aluminum beverage cans without degrading can stock. Light Alloy Fabrication Technology. 48(2), 8-11.
  • [3] Liu, J. (2010). Formation and separation of iron-containing organic compounds in aluminum isopropyl alcohol and application of high purity aluminum alcohol salts. DaLIian: Dalian University of Technology.
  • [4] Cheng, X. (2012). Theoretical investigations on the hydrolysis-oligomerization mechanisms of silicon and aluminum alkoxides. Jinan: Shandong University.
  • [5] Yoo, S., Yoon, H. & Jang, H. (2007). Synthesis of aluminum ethoxide from used aluminum cans. Korean Journal of Chemical Engineering. 24, 872-876. https://doi.org/10.1007/s11814-007-0057-z.
  • [6] Yoo, S., Yoon, H. & Jang, H, (2007). Dissolution kinetics of aluminum can in isopropyl alcohol for aluminum isopropoxide. Chemical Engineering Journal. 133(1-3), 79-84. https://doi.org/10.1016/j.cej.2007.02.003.
  • [7] Zhang, G., Liu, B., Pan, D., Tian, J., Liu, Y., Zhao, R. The invention relates to a green recycling method of waste aluminum cans: CHINA, CN201210432365.2[P]. 22012.11.02.
  • [8] Li, X. (2021). Multiscale modeling and simulation of particle, batch kettle and fixed bed adsorption kinetics. Beijing: Beijing University of Chemical Technology.
  • [9] Ning J. Chen D., Liu Y. (2021). Efficient adsorption removal and adsorption mechanism of basic fuchsin by recyclable Fe3O4@CD magnetic microspheres. Journal of Central South University. 28(12), 3666-3680. https://doi.org/10.1007/s11771-021-4845-0.
  • [10] Rabah, M.A. (2023). Preparation of aluminium-magnesium alloys and some valuable salts from used beverage cans. Waste Management. 23(2), 173-182. https://doi.org/10.1016/S0956-053X(02)00152-6.
  • [11] Hong, Z., Yoshitaka, N.,& Isamu, Y. (2004). Analysis of the recycling system for aluminum cans, focusing on collection transportation and the intermediate processing methods. Journal of Material Cycles and Waste Management. 6, 153-161. https://doi.org/10.1007/s10163-003-0114-6.
  • [12] Zhu, W. (2013). Preparation of McM-41 mesoporous molecular sieves and their adsorption of heavy metal ions, Kunming: Kunming University of Science and Technology.
  • [13] Liu, B., Yang, J., Xue, T. & Sun, K. (2020). Adsorption kinetics and thermodynamics of P(V) by Tio2-Fe3O4-ATP adsorbent. Material Protection. 53(8), 68-73.
  • [14] Cao, F., Sun, D., Qiu, X., Zhou, D., Zhang, X., & Sun, C. (2022). Design and synthesis of novel thionocarbamate for copper-sulfur flotation separation and research on its adsorption mechanism. Transactions of Nonferrous Metals Society of China.
  • [15] Tan, S., Yang, J., & Li, C. (2020). Discussion on the practical application of activated carbon adsorption method to treat organic waste gas. Guangdong Chemical Engineering. 47(18), 141-142
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-deed41e9-9d7a-4325-9847-1dd788b46a11
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