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Ligand selection for complex-leaching valuable metals in hydrometallurgy YANG Tian-zu(杨天足), DOU Ai-chun(窦爱春), LEI Cun-mao(雷存茂), REN Jin(任 晋), LIU Zhen-zhen(刘珍珍) School of Metallurgical... selection and a critical selection, for complex-leaching valuable metals was presented. At the primary selection stage, three conditions were discussed under a supposed ideal state by mathematical derivation......
Atomic simulation on evolution of nano-crystallizaion in amorphous metals WANG Yu(王 宇), WANG Xiu-xi(王秀喜), WANG Hai-long(王海龙) Key Laboratory of Mechanical Behavior and Design of Materials... amorphous Ni-Pd alloys and the temperature effect on the nano-crystallization behavior in amorphous metals were studied. The results show that the small nano-crystalline grain will nucleate and grow......
; (5) where P3 is recovery rate of heavy metals (%); TC is total concentration of heavy metals (mg/kg); F1, F2, F3, F4 are concentrations of heavy metals extracted in each fraction. The leaching.... Figure 3 presents the recovery rates of heavy metals extracted by BCR method. On the whole, the sum of the four fractions is in good agreement with the total concentration of heavy metals......
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CFAbased geopolymers were lower than their maximum concentration limits according to the U.S.environmental protection law.And the encapsulated and fixed ratios of heavy metals by the CFA-based geopolymers...Static and Dynamic Leaching Experiments of Heavy Metals from Fly Ash-Based Geopolymers郭晓潞1,2,施惠生1,2,XU Mingfeng21. Key Laboratory of Advanced Civil Engineering Materials,Ministry of Education(Tongji......
Influence of Rare-earth Elements on Mechanical Properties of PalladiumYuantao NING+;Fei WEN;Huaizhi ZHOU;Deguo DENG, Institute of Precious Metals Kunming, 650221, China摘 要:concentration. Whenthe strength properties of Pd-RE alloys were normalized at 0.1 at.-%RE......
硫化镍试金预富集-ICP-AES测定矿石中的Pt,Pd,Ir,Au 陈丁文1,董守安1,冯忠1,刘小荣1 (1.贵研铂业股份有限公司,云南,昆明,650221) 摘要:详细研究了硫化镍试金预富集-ICP-AES测定矿石中的P t,Pd,Ir,Au的多种影响因素.结果表明硫化镍扣用盐酸溶解,多孔玻砂坩埚过滤溶液, 盐酸和双氧水溶解残渣是比较理想的分析方案.硫化镍扣溶解过程中,Pt,Pd的损失可忽略 .Au的损失相当高,仅能半定量.对于μg/g级的样品,Pt,Pd,Ir,Au的平均回收率在96% ~99%之间,相对标准偏差为1.7%~6.8%(n=5).拟定的方法已用于矿石,精矿的分析. 关键词:分析化学; 贵金属; ICP-AES; 硫化镍试金; analysis chemistry; precious metals; ICP-AES; nickel su lfide fire......
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, Mn(NO3)2, Ni(NO3)2·6H2O, SeO2, NH4Cl2, NaNO3, NaNO2, KH2PO4. The concentration ranges of metals and inorganic ions tested in this study were selected according to Water Quality Criteria regulated... was tested at increasing concentration of lactate in the presence of two different concentrations of mercury and nickel. Current response of biosensor decreased from 0.32 μA to 0.09 μA and 4.13 μA......
Extraction of Metals from Boiler Slag by Sintering李进平1,2,侯浩波11. School of Resource and Environment Science, Wuhan University2. School of Environment and Urban Construction, Wuhan University.... The extraction efficiency of Al and Fe increased with temperature, leaching time and acidity. The concentration of alumina and iron hydroxide in the final product was determined to be 99.12% and 92.20......