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can reach 95.86%. Key words: stone coal; vanadium; leaching; sulfate solution ____________________________________________________________________________________________ 1 Introduction Vanadium is an important product that is used almost in ferrous and non-ferrous alloys due to its high physical properties such as tensile strength, hardness, and fatigue resistance[1-2]. In addition......
Recovery of valuable metals from waste diamond cutters through ammonia–ammonium sulfate leachingPing Xue1,2,Guang-qiang Li1,Yong-xiang Yang1,3,Qin-wei Qin1,Ming-xing Wei21. Key Laboratory for Ferrous... with an ammonia–ammonium sulfate system and air as an oxidant. The effects of experimental parameters on the leaching process were investigated, and the potential–pH(E–pH) diagrams of Cu–NH3–SO42-–H2O and Zn–NH3......
测定铬铁矿中氧化亚铁的溶样方法研究李玉茹1,周海波1,吴爱华1,杨林1,张志勇1,黄宝贵1(1.湖南省长沙市长沙矿冶研究院)摘 要:证明了经沸腾硫酸(~330℃)湿烧法预处理的铬铁矿的物质组成发生相变,反应产物硫酸铬生成,化学活性增强以及磷酸(硫-磷混合酸)对其溶解反应明显变易等,从而改进了测定铬铁矿中氧化亚铁的溶样方法.试样首先与钒(Ⅴ)-钒(Ⅳ)溶液和硫酸混合,于2 000 W电炉上加热至冒浓三氧化硫烟,并至腾空1~3 min,然后加入缩合磷酸,再加热至冒浓烟,并至腾空3~5 min.所得试液适当冷却,稀释......
Article ID: 1003-6326(2005)05-1156-05 Preparation of titanium dioxide/silver sulfate powder and its antibacterial activity PENG Bing(彭 兵), YUAN Chun(苑 春), CHAI Li-yuan(柴立元), WEI Shun.../silver sulfate were produced by heat-treatment of the metatitanic acid, as precursor, into which the silver nitrate was added. The influences of heating temperature on the structure and composition......
Effects of additives on nickel electrowinning from sulfate system LU Jing(卢 静), YANG Qi-hua(阳启华), ZHANG Zhao(张 昭) School of Chemical Engineering, Sichuan University, Chengdu 610065... and improve the surface morphology of cathode nickel, the influence of additives of boric acid and dodecyl sodium sulfate (SDS) on the process of nickel electrowinning from sulfate system was studied......
Deep removal of copper from cobalt sulfate electrolyte by ion-exchange WEN Jun-jie(温俊杰), ZHANG Qi-xiu(张启修), ZHANG Gui-qing(张贵清), CAO Zuo-ying(曹左英) School of Metallurgical Science and Engineering...; Abstract: SP-C was applied for the removal of Cu2+ from simulated cobalt sulfate electrolyte containing Co2+ 50 g/L......
, such as spent sulfate acid and ferrous sulphate (FeSO4·7H2O), are produced [2,3]. The total ferrous sulphate production in China was more than 7×106 t in 2013, and the annual growth rate of production... Peng-hui, JIANG Bing, ZHANG Zhi-ye, WANG Xin-long, CHEN Xiao-dong, YANG Xiu-shan, YANG Lin. Recycling sulfur and iron resources in the waste ferrous sulfate
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......
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......
Effect of Sulfate Ions on YAG Powders Synthesized by Microwave Homogeneous Precipitation Xu Hongyan1,Wang Jieqiang1,Yue Yunlong1,Wang Yong1 (1.School of Materials Science and Engineering, Jinan.... The results show that sulfate ions influence the dispersion, composition and morphology of the YAG precursors. The addition of moderate sulfate ions can produce YAG powders with nano size and excellent......
