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Study of cerium-promoted rhodium alumina catalyst as a steam reforming catalyst for treatment of spent solventsHee-Chul Yang,Min-Woo Lee,Ho-Sang Hwang,Jei-Kwon Moon,Dong-Yong ChungKorea Atomic Energy Research Institute摘 要:This study attempted to develop an appropriate catalyst used for the steam reforming of gasified spent solvents. Rh2O3/ CeO2-Al2O3......
Recovery and regeneration of Al2O3 with a high specific surface area from spent hydrodesulfurization catalyst CoMo/Al2O3Qi Liu1,Wen-Qiang Wang1,Yue Yang1,2,Xue-Gang Liu1,Sheng-Ming Xu1,31. Institute... of alumina with high additional value from the spent hydrodesulfurization catalyst CoMo/Al2O3. The results indicate that 98.13% alumina is successfully leached from the treated spent catalysts......
有机硅偶联剂合成中废催化剂铂含量的测定谢芳琴1,2,董占能3,吴立生4,陈宇航3(1.湖北省荆州市长江大学化学与环境工程学院2.云南省昆明市昆明理工大学环境科学与工程系3.昆明理工大学 环境科学与工程学院,昆明 6500934.云南大学 分析测试中心,昆明 650093)摘 要:有机硅偶联剂合成过程中产生的废催化剂成分复杂,其中铂含量的确定对研究催化剂的性能和回收有重要的影响.研究改进光度法对该废催化剂中铂的含量进行分析,结果表明此方法是简便高效的分析方法.关键词:分析化学; 铂; 光度法; 有机......
and its application to extraction of platinum group metals from spent automotive catalyst[J]. Hydrometallurgy, 2016, 159: 19-27. [6] 黄 昆, 陈 景, 陈奕然, 赵家春, 李奇伟, 杨秋雪. 加压碱浸处理-氰化浸出法回收汽车废催化剂中的贵金属[J]. 中国有色金属学报... Press, 2009: 280-283. Enrichment of Pd, Pt and Rh from spent automotive catalyst by pyrometallurgical bismuth capture ZHANG Fu-yuan, ZHANG Guang-an, XU Liang, ZHAO Zhuo (School of Metallurgical......
制酸废催化剂回收钒王晓丹1,朱云1(1.云南省昆明市昆明理工大学材料与冶金工程学院)摘 要:用硫酸浸出-P204萃取工艺从制酸废催化剂中回收钒.结果表明,在浸出条件为硫酸浓度50g/L,液固比2∶1,时间30min时,钒的浸出率可达95%.浸出液经过P204萃取,饱和NaHCO3溶液反萃,反萃液净化,铵盐沉钒,偏钒酸铵热分解后得到了合格的V2O5.关键词:冶金技术; 钒; 硫酸浸出; 制酸废催化剂......
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......
铂族金属氰化浸出率的影响, 并对其反应机理进行了初步探讨. 1 实验 1.1 实验原料 实验所用物料来源于4种不同的失效汽车催化剂, 其载体均为圆柱蜂窝状陶瓷堇青石型. 铂族金属含量分析结果如表1所示. 表1 失效汽车催化剂中铂族金属含量 Table 1 PGM content in spent automobile... Metals, 1993: 343-349. [7]黄昆, 陈景. 从失效汽车尾气净化催化转化器中回收铂族金属研究进展[J]. 有色金属, 2004, 56(1): 70-77. HUANG Kun, CHEN Jing. Progress in recovery of platinum-group metals from spent automobile catalytic converters......
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Recovery of vanadium and molybdenum from spent petrochemical catalyst by microwave-assisted leachingZhi-yuan Ma1,2,3,Yong Liu1,2,3,Ji-kui Zhou1,2,3,Mu-dan Liu1,2,3,Zhen-zhen Liu1,2,31. Guangdong..., leaching temperature, and NaOH concentration on the leaching efficiency of spent petrochemical catalyst was investigated. Under microwave-assisted conditions(600 W, 10 min, 90°C, 2.0 mol·L-1 NaOH, and 0.20......
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......