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J. Cent. South Univ. Technol. (2007)01-0037-05 DOI: 10.1007/s11771-007-0008-1 Mechanism of zinc electroplating... by a preceding chemical reaction. The diffusion coefficient of Zn(OH)42- is 2.452×10-6 cm2/s. Zn(OH)2 is the species directly discharged on the cathode surface. Based on the above results the mechanism of zinc......
Use of ionic liquid in leaching process of brass wastes for copper and zinc recoveryAyfer Kilicarslan1,Muhlis Nezihi Saridede1,Srecko Stopic2,Bernd Friedrich21. Department of Metallurgical...">Brass ash from the industrial brass manufacturer in Turkey was leached using the solutions of ionic liquid(IL)1-butyl-3-methyl-imidazolium hydrogen sulfate([bmim]HSO4)at ambient pressure in the presence......
Effects of microwave pretreatment on zinc extraction from spent catalyst saturated with zinc acetate ZHANG Ze-biao(张泽彪)1, 2, ZHANG Zheng-yong(张正勇)1, 2, NIU Hao(牛 浩)1, 2, PENG Jin... was proposed and the temperature-change curve of spent catalyst under microwave irradiation was measured. The influence of microwave pretreatment temperature and microwave irradiation time on zinc......
Ultrasonic testing and microscopic analysis on concrete under sulfate attack and cyclic environmentJIANG Lei(姜磊), NIU Di-tao(牛荻涛), SUN Ying-zhao(孙迎召), FEI Qian-nan(费倩男) (College of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China)Abstract:The damage process of concrete exposed to sodium sulfate attack and drying-wetting cycles was investigated. The water......
; 文献标识码:A Availability of sulfate reducing bacteria on carbon sources CAO Jun-ya1, ZHANG Guang-ji1, 2, MAO Zai-sha1, FANG Zhao-heng1, YANG Chao1, 2 (1. Key... molecular mass organic acids, alcohols, volatile fatty acid salts and carbohydrates. The results show that sulfate reducing activity decreases in the order of low molecular mass organic acids, volatile fatty......
数),具有较高的利用价值.同时锌窑渣中还含有大量的焦炭和SiO2. 表1 锌窑渣的主要化学成分 Table 1 Main chemical composition of zinc kiln slag (mass fraction, %) 对锌窑渣进行XRD分析,其结果如图1所示.由图1可以看出,锌窑渣中主要的铁物相为FeS,Fe2O3,Fe3O4等,铜物相主要为CuS,CuFeS2和Cu5FeS4.对锌窑渣进行SEM-EDS分析,结果如图2和图3所示. 图1 锌窑渣的XRD谱 Fig. 1 XRD pattern of zinc kiln slag 图2 锌窑渣的SEM像 Fig. 2 SEM images of zinc kiln slag 图3 锌窑渣的SEM像及EDS谱 Fig. 3......
of extracting zinc from zinc oxide ore by the ammonium sulfate roasting method[J]. International Journal of Minerals, Metallurgy and Materials, 2015, 22(5): 467-474. [18] 申晓毅, 孙 毅, 宋继强, 翟玉春. 硫酸铵低温焙烧中低品位氧化锌矿[J... 中图分类号:TF813 文献标志码:A Cycle leaching of low grade zinc oxide ores in Ida2--H2O system DOU Ai-chun1, YANG Tian-zu2, LIU Yun-jian1, SU Ming-ru1 (1. School of Material Science......
Study on New Kind of Rare Earth-Containing Flocculants of Poly-Ferric Sulfate Chloride Zhu Hengxiang1,Li Jinai1,Pang Xijie1,Luo Yongjian1,Yao Jiye1,Xiao Xueyan1,Kuang Juchi1 (1.Department of Chemistry and Chemical Engineering , Foshan University, Foshan 528000, China) Abstract:A new kind of rare earth- containing flocculant of poly-ferric sulfate chloride (PFSCRE) was studied, and proved......
Zinc bioleaching from an iron concentrate using Acidithiobacillus ferrooxidans strain from Hercules Mine of Coahuila,MexicoLuis Medina-Torres33. Department of Chemical Engineering,Faculty... native bacteria were isolated from the iron concentrate of the mine.The bioleaching experiments were carried out in shake flasks to analyze the effects of pH values,pulp density,and the ferrous sulfate......
, 2004(12): 10. [12] 常晓雷, 康勇, 冯颖. 硫酸盐还原菌与单质铁协同作用处理酸性含锌废水[J]. 中国有色金属学报, 2006, 16(9): 1647-1652.CHANG Xiao-lei, KANG Yong, FENG Ying. Treatment of acid zinc wastewater by sulfate reducing bacteria...:铝盐;复盐沉淀;工业废水;硫酸根 中图分类号:X703.1 文献标志码:A 文章编号:1672-7207(2010)02-0434-06 Removal of sulfate from......