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; Abstract: Kinetic process of oxidative leaching of chalcopyrite in chloride acid hydroxide medium under oxygen pressure and low temperature was investigated. The effect on leaching... for chalcopyrite leaching. Key words: chalcopyrite; kinetics; pressure oxidation; sodium chloride hydroxide medium; leaching ......
Corrosion Resistance of Silane-Modified Hydroxide Zinc Carbonate Film on AZ31 Magnesium AlloyRong-Chang Zeng1,2,Li-Jun Liu1,Ting-Ting Pang1,Fen Zhang1,2,Wei-Wei Zhang1,Shuo-Qi Li1,2,Hong-Zhi Cui1,En...">The corrosion resistance of magnesium alloys can be improved using functional surface modification such as hydrophobic treatment.In this study,a hierarchical hydroxide zinc carbonate(HZC) film......
Effect of Sodium Hydroxide on the Properties of Phosphogypsum based Cement黄赟Key Laboratory of Silicate Materials Science and Engineering Ministry of Education, Wuhan University of Technology摘 要:The effect of sodium hydroxide (NaOH) amount on phosphogypsum based cement was investigated. The mechanical performances and hydration mechanism......
The Adsorbing Effect of Calcined Layered Double Hydroxide for Chloride Ions in Simulated Concrete Pore Solutions唐聿明,ZHAO Xuhui,NIU Le,左禹School of Materials Science and Engineering, Beijing University... hydroxide(CLDH) for chloride ions in simulated concrete pore(SCP) solutions was investigated with the potentiodynamic polarization method, impedance measurement, ion selective electrode analysis......
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of copper nanoparticles by chemical reduction using potassium borohydride ZHANG Qiu-li1, 2, YANG Zhi-mao1, DING Bing-jun1 (1. School of Science, Xi’an Jiaotong University, Xi’an 710049, China; 2. School... potassium borohydride as reducing agent. The effects of reactant ratio, concentration of CuSO4, reaction temperature, dispersant on the size of product and conversion rate were studied. The morphology......
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Preparation and characterization of bis(dimolybdo- nonatungstogermanate) lanthanates of potassiumWU QingyinDepartment of Chemistry, Zhejiang University, Hangzhou 310027, China摘 要:<正> The heteropoly complexes K12[Ln(GeW9Mo2O39)2] · nH2O (Ln = La, Ce, ......
Facile synthesis and characterization of acetate intercalated Co-La layered double hydroxideMeenakshi Pokhriyal,Sitharaman Uma,Rajamani NagarajanMaterials Chemistry Group, Department of Chemistry, University of Delhi摘 要:Layered double hydroxide(LDH) comprising of Co2+ and La3+-ions with acetate counter anion was successfully synthesized by hydrogen......
Optimization of selective copper extraction from chalcopyrite concentrate in presence of ammonium persulfate and ammonium hydroxideMehmet Deniz TuranDepartment of Metallurgical and Materials Engineering,F?rat University摘 要:The dissolution of copper and iron from chalcopyrite concentrate in the presence of ammonium persulfate(APS) and ammonium hydroxide......
