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Alumina recovery from spent Bayer liquor by methanol ZHANG Ying(张 盈)1, 2, ZHENG Shi-li(郑诗礼)1, DU Hao(杜 浩)1, WANG Shao-na(王少娜)1, PENG Ying(彭 鹰)3, ZHANG Yi(张 懿)1 1. National Engineering.... In this study, a method was explored to recover alumina from spent Bayer liquor by deep decomposition with methanol. A variety of conditions, including reaction temperature, reaction time, methanol......
Pyrolysis characteristic and kinetic equation of spent catalyst used for vinyl acetate synthesis ZHANG Zheng-yong1, 2, PENG Jin-hui1, 2, ZHANG Ze-biao1, 2, ZHANG Li-bo1, 2, QU Wen-wen1, 2, LI Ning1, 2..., Kunming University of Science and Technology, Kunming 650093, China) Abstract: The pyrolysis characteristics of spent catalyst were investigated by the thermo-gravimetric analysis method in N2......
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含贵金属废催化剂的分析 James Lynn1,Algis Naujokas1,Stephen Cooke1 (1.Sabin,金属公司,East Hampton,纽约,美国) 摘要:介绍了含贵金属废催化剂的工业分析方法,包括试金和湿法浸出分析法及其优缺点,详细地讨论了分析过程中的三级质量控制,包括方法质量控制,样品质量控制及仪器质量控制.给出了试金分析及湿法浸出分析原则流程图. 关键词:分析化学; 含贵金属废催化剂; 质量控制; analytical chemistry; spent noble metals bearing catalysts; quality control; [全文内容正在添加中] ......
in automobile exhaust industry. With the abandonment of a large number of automobiles, lots of the spent automobile catalysts accumulated in many parts of the suburbs. This leads to environmental pollution... Engineering, 2011, 24: 505-513. [3] DONG Hai-gang, ZHAO Jia-chun, CHEN Jia-lin, WU Yue-dong, LI Bo-jie. Recovery of platinum group metals from spent catalysts: A review [J]. International Journal of Mineral......
Preparation of LiNi1/3Co1/3Mn1/3O2 cathode materials from spent Li-ion batteries LI Jian-gang(李建刚)1, ZHANG Qian(张 倩)1, HE Xiang-ming(何向明)2 1. School of Chemical Engineering, Beijing Institute... successfully to recycle spent lithium-ion batteries and to synthesize LiNi1/3Co1/3Mn1/3O2. When ultrasonic treatment with 2-nitroso-4-methylphenol(NMP) at 40 ℃ for 15 min, the electrode materials......
leaching rate of spent catalyst saturated with zinc acetate ZHANG Zheng-yong, ZHANG Ze-biao, PENG Jin-hui, QU Wen-wen, HUANG Meng-yang, ZHANG Shi-min (Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology,Kunming 650093, China) Abstract: A new technology for microwave pretreatment of spent catalyst-leaching of zinc in hydrochloric acid solution......
for they require replacement. Over a period of time, tons of spent reforming catalysts get accumulated, leading to pollution to the concerned industry in particular. Therefore, the need is to find some suitable... spent nickel catalysts are very rich in nickel, many attempts have been made to recover nickel from spent catalyst [1,2]. Acid digestion method is commonly practiced for the above purpose. It has been......
Oxides Catalysts of Rare Earth and Transient Metal for Catalytic Oxidation of Benzene Liang Kun1,Chen Jianjun1,Li Rong1,MA JianTai1 (1.College of Chemistry and Chemic Engineering, Lanzhou University, Lanzhou 730000, China) Abstract:The catalysts of CeO2 and the mixture of CeO2 and CuO were prepared, and the activities of these catalysts for completely oxidizing benzene were studied.The results......
to recover molybdenum, nickel, cobalt and aluminum from spent hydrotreating catalysts in sulphuric acid medium[J]. Journal of Hazardous Materials, 2008, 160(2/3): 310-317. [11] FENG Qi-ming, CHEN Yun... of a zinc silicate calcine[J]. Hydrometallurgy, 2007, 89(3/4): 337-345. [24] Lozano L J, Juan D. Leaching of vanadium from spent sulphuric acid catalysts[J]. Minerals Engineering, 2001, 14(5): 543-546......
