Leaching of aluminum and iron from boiler slag generated from a typical Chinese Steel Plant
文献类型: 外文期刊
第一作者: Li, Jinping
作者: Li, Jinping;Gan, Jinhua;Li, Xianwang
作者机构:
关键词: boiler slag;sintering;extraction efficiency;leaching
期刊名称:JOURNAL OF HAZARDOUS MATERIALS ( 影响因子:10.588; 五年影响因子:10.129 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: This paper presents a new way of recycling aluminum and iron in boiler slag derived from coal combustion plants, which integrates efficient extraction and reuse of the leached pellets together. The boiler slag was pelletised together with washed coal and lime prior to sintering and then was sintered at 800-1200℃ for different periods to produce sintered pellets for the leaching test. An elemental analysis of aqueous solutions leached by sulfuric acid was determined by EDTA-Na2-ZnCl2 titration method. The components and microstructures of the samples, sintered pellets and leached residue were examined by means of XRF, XRD and SEM. XRD analysis indicates that predominate minerals such as kaolinite, quartz, calcium silicide, hematate and metakoalin exist in the boiler slag. An aluminum extraction efficiency of 86.50% was achieved. The maximum extraction efficiency of Fe was 94.60% in the same conditions of that for the maximum extraction efficiency of Al. The extraction efficiencies of Al and Fe increased with an increase in temperature, leaching time and acidity. High Al extraction efficiency was obtained for pellets with high CaO content. The final product of alumina would be used directly for the production of metallic aluminum.
分类号: TB1
- 相关文献
作者其他论文 更多>>
-
Determination of 14 Benzodiazepine Multiresidues in Aquaculture Environment by Ultra-High-Performance Liquid Chromatography-Tandem Mass Spectrometry
作者:Guo, Hongyang;Li, Jinping;Chen, Jianwu;Mei, Yuqing;Gong, Zhiqiang;Liu, Mingdian;Gan, Jinhua;Jiang, Guangjun
关键词:ultra-high-performance liquid chromatography-tandem mass spectrometry; benzodiazepines; aquaculture environment; multiresidues
-
Multi-system toxicity of lead (Pb) in Procambarus clarkii: Integrated analysis of tissue damage, immune dysfunction, oxidative stress, and microbial dysbiosis via multi-omics approaches
作者:Zhang, Lang;Qin, Qiuying;He, Li;Tian, Juan;Yu, Yali;Gan, Jinhua;Song, Ziwei;Mu, Yingchun;Zhong, Liqi;Cui, Zongbin
关键词:Procambarus clarkii; Lead; Crayfish and metals; Hepatopancreatic transcriptome; Intestinal microbiota
-
Polycyclic aromatic hydrocarbons in freshwater organisms from Hubei, Central China: health risk assessment and source identification
作者:Liu, Ting;He, Li;Peng, Jie;Zhang, Lang;Yu, Yali;Gan, Jinhua;Liu, Ting;Liu, Zhiyu;Qian, Zhuozhen
关键词:
-
Effects of Aminomethylphosphonic Acid on the Transcriptome and Metabolome of Red Swamp Crayfish, Procambarus clarkii
作者:Mao, Tao;Liu, Ziduo;Wu, Gaobing;Mao, Tao;Gan, Jinhua;Yuan, Keping;He, Li;Yu, Yali;Zhou, Yuntao
关键词:AMAP; P. clarkii; transcriptomics; metabolome
-
The transcription factor FcMYB3 responds to 60Co γ-ray irradiation of axillary buds in Ficus carica L. by activating the expression of the NADPH oxidase, FcRbohD
作者:Song, Miaoyu;Chen, Ziyu;Wang, Ziran;Song, Miaoyu;Ma, Huiqin;Bahayiding, Wupur;Li, Jinping
关键词:fig (Ficus carica L.); gamma-Ray radiation; ROS; FcMYB3; FcRbohD
-
Simultaneous removal of phosphate and tetracycline using LaFeO3 functionalised magnetic biochar by obtained ultrasound-assisted sol-gel pyrolysis: Mechanisms and characterisation
作者:Xu, Zhichao;Guo, Hongyang;Ahmed, Taosif;Wang, Teng;Liu, Jingxin;Mei, Meng;Chen, Si;Li, Jinping;Gan, Jinhua;Wang, Teng;Liu, Jingxin;Mei, Meng;Chen, Si;Li, Jinping
关键词:Bimetallic modification; Crab shell; Biochar adsorbent; Tetracycline and phosphate adsorption
-
Insights into the molecular mechanism of muscle textural quality improvement treated by exercise using comparative transcriptome analysis on the hybrid (Erythroculter ilishaeformis female x Ancherythroculter nigrocauda male)
作者:Zhang, Lang;Yu, Yali;Song, Ziwei;Gan, Jinhua;Zhang, Hui;Lu, Xiaorong;He, Li;Wei, Huijie;Li, Qing;Sun, Yanhong;Li, Pei;Chen, Jian;Wang, Guiying;Li, Qing;Sun, Yanhong;Li, Pei;Chen, Jian;Wang, Guiying
关键词:Exercise; Muscle texture; Muscle transcriptome; Molecular pathways; Immune defense