Calcification-Carbonation Method for Bayer Red Mud Treatment: Carbonation Performance of Hydrogarnets

doi:10.1007/s00128-022-03522-6

	Calcification-Carbonation Method for Bayer Red Mud Treatment: Carbonation Performance of Hydrogarnets
	Zhu, Xiaofeng 1; Liu, Yongmei 1; Jiang, Fengqi 1; Li, Bin 1; Lv, Guozhi 2; Zhang, Ting-an 2
刊名	Bulletin of Environmental Contamination and Toxicology
	2022
卷号	109 期号:1 页码:68-75
关键词	Amorphous silicon Bone Calcite Calcium carbonate Carbon dioxide Carbonation Silica Batch experiments Carbonation method Hydrogarnet Intermediate product Performance Potential effects Red mud SiO2-substituted Substitution degree Synthesised
ISSN号	0007-4861
DOI	10.1007/s00128-022-03522-6
英文摘要	Hydrogarnets are vital intermediate products in the calcification- carbonation method, which is designed for Bayer red mud treatment. Their carbonation performance greatly depends on SiO2 substitution. In this study, different SiO2-substituted hydrogarnets were synthesized and characterized. Then, batch experiments were performed to evaluate the potential effects of important parameters such as CO2 pressure, and SiO2 substitution degree (x) on the carbonation process. The SiO2 substitution degrees of the hydrogarnets synthesized at 60, 120, 180, and 240°C were 0.27, 0.36, 0.70, and 0.73, respectively. As the SiO2 substitution degree increased, the hydrogarnet carbonation extents gradually declined. With an increase in CO2 pressure, the hydrogarnet carbonation percentages increased gradually and rose from 80.33% to 98.19% within 120 min. The phases detected in the carbonized products were strip-like aragonite as well as some calcite; the Al-rich and Si-rich phases in the carbonized products were amorphous. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
语种	英语
出版者	Springer
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159104]
专题	材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Key Laboratory of Ecological Metallurgy of Multi-metal Intergrown Ores of Ministry of Education, Special Metallurgy and Process Engineering Institute, School of Metallurgy, Northeastern University, Shenyang; 110819, China
推荐引用方式 GB/T 7714	Zhu, Xiaofeng,Liu, Yongmei,Jiang, Fengqi,et al. Calcification-Carbonation Method for Bayer Red Mud Treatment: Carbonation Performance of Hydrogarnets[J]. Bulletin of Environmental Contamination and Toxicology,2022,109(1):68-75.
APA	Zhu, Xiaofeng,Liu, Yongmei,Jiang, Fengqi,Li, Bin,Lv, Guozhi,&Zhang, Ting-an.(2022).Calcification-Carbonation Method for Bayer Red Mud Treatment: Carbonation Performance of Hydrogarnets.Bulletin of Environmental Contamination and Toxicology,109(1),68-75.
MLA	Zhu, Xiaofeng,et al."Calcification-Carbonation Method for Bayer Red Mud Treatment: Carbonation Performance of Hydrogarnets".Bulletin of Environmental Contamination and Toxicology 109.1(2022):68-75.