Technology for Preparing Calcium Fluoride from Aluminum Production Waste

被引:3
作者
Baranov, A. N. [1 ]
Gavrilenko, A. A. [2 ]
Volyanskii, V. V. [2 ]
Gavrilenko, L. V. [3 ]
Nozhko, S. I. [3 ]
Timkina, E. V. [1 ]
机构
[1] Irkutsk Natl Res Tech Univ, Irkutsk, Russia
[2] RUSAL Bratsk Aluminum Plant, Bratsk, Russia
[3] RUSAL Engn & Technol Ctr, Krasnoyarsk, Russia
关键词
aluminum production; hydrogen fluoride; cryolite; calcium fluoride; regeneration; solid waste; leaching;
D O I
10.1007/s11015-017-0521-x
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Aluminum production is accompanied by production of fluorine-containing solid waste. Every year in the Bratsk Aluminum Plant 40000 tons of this waste is produced with a high fluorine and carbon content. Technology for producing calcium fluoride is developed in order to regenerate fluorine. Optimum conditions are studied and determined for leaching fluorine from aluminum electrolysis production waste. Conditions are determined necessary for regenerating sodium fluoride solution with which synthetic calcium fluoride is obtained suitable for use as an additive to electrolyte in aluminum production.
引用
收藏
页码:485 / 490
页数:6
相关论文
共 50 条
[11]   Fluoride Release from Dental Adhesive Reinforced with Fluorapatite or Calcium Fluoride [J].
Gholam, Mohammed Kassim ;
Hameed, Mohammed R. .
INTERNATIONAL JOURNAL OF MEDICAL RESEARCH & HEALTH SCIENCES, 2018, 7 (09) :137-143
[12]   Calcium fluoride recovery from fluoride wastewater in a fluidized bed reactor [J].
Aldaco, R. ;
Garea, A. ;
Irabien, A. .
WATER RESEARCH, 2007, 41 (04) :810-818
[13]   Retransformation of fluoride ion generated from the biodegradation of benzotrifluoride to calcium fluoride [J].
Iwai, Noritaka ;
Watanabe, Yosuke ;
Kitazume, Tomoya .
JOURNAL OF FLUORINE CHEMISTRY, 2012, 135 :350-353
[14]   Fluoride Evaporation during Thermal Treatment of Waste Slag from Mg Production Using Pidgeon Process [J].
Han, Fenglan ;
Wu, Laner ;
Guo, Shengwei ;
Yang, Qixing ;
Du, Chun .
FRONTIERS OF MATERIALS, CHEMICAL AND METALLURGICAL TECHNOLOGIES, PTS 1 AND 2, 2012, 581-582 :1044-+
[15]   Industrial-Scale Technology for Molybdic Acid Production from Waste Petrochemical Catalysts [J].
Leszczynska-Sejda, Katarzyna ;
Dydo, Piotr ;
Szydlowska-Braszak, Ewa .
MATERIALS, 2023, 16 (17)
[16]   Synthesis of high purity calcium fluoride from fluoride-containing wastewater [J].
You, Shaowei ;
Cao, Shaotao ;
Mo, Chunyang ;
Zhang, Yi ;
Lu, Jianwen .
CHEMICAL ENGINEERING JOURNAL, 2023, 453
[17]   Calcium Fluoride Precipitation and Deposition From 12 mmol/L Fluoride Solutions With Different Calcium Addition Rates [J].
Markovic, M. ;
Takagi, S. ;
Chow, L. C. ;
Frukhtbeyn, S. .
JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, 2009, 114 (05) :293-301
[18]   Investigation into aluminum leaching from vein quartz in a calcium fluoride-enhanced citric acid-tartaric acid system [J].
Li, Shuguang ;
Chen, Qi ;
Cao, Zhao ;
Chen, Jingxu ;
Yang, Jie .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2025, 709
[19]   Selective Leaching Bastnaesite from Bayan Obo Rare Earth Concentrate and the Recovery Process of Rare Earths, Aluminum, Fluoride and Calcium [J].
Liu, Yanzhu ;
Xiao, Huifang ;
Liu, Lihui ;
Ye, Xiaofan ;
Hu, Xiaoqian ;
Ding, Yanrong ;
Li, Yongxiu .
METALS, 2025, 15 (04)
[20]   Removal of ammonium and heavy metals by cost-effective zeolite synthesized from waste quartz sand and calcium fluoride sludge [J].
Zhang, Qian ;
Lin, Bing ;
Hong, Junming ;
Chang, Chang-Tang .
WATER SCIENCE AND TECHNOLOGY, 2017, 75 (03) :587-597