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advantages, such as high recovery, low economic cost and less impurities in leaching solution. Key words: stone coal; roasting; acid leaching; vanadium... technologies are developed to get higher recovery[10-12]. To a great extent, the leaching degree determines the recovery of vanadium, and a high leaching degree leads to a high vanadium recovery[13]. Many......
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Heat Treatment of Centrifugally Cast High-Vanadium Alloy Steel for High-Pressure Grinding RollerHaizhi Li1,Weiping Tong1,Junjun Cui2,Hui Zhang1,Liqing Chen2,Liang Zuo31. Key Laboratory... of Materials(Ministry of Education), School of Materials and Metallurgy,Northeastern University摘 要:The roller is one of the main parts of a high-pressure......
High-pressure Sintering of Boron Carbide-Titanium Diboride Composites and Its Densification Mechanism高建成,WANG Dangqiang,LEI Liwen,张帆,ZHANG Jinyong,FU ZhengyiState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology摘 要:A high-pressure hot-pressing process was applied to densify a commercial boron......
The characterization of Fe-rich phases in a high-pressure die cast hypoeutectic aluminum-silicon alloyX.Y.Jiao1,C.F.Liu1,Z.P.Guo1,2,G.D.Tong3,S.L.Ma3,Y.Bi3,Y.F.Zhang3,S.M.Xiong1,21. School...="ChDivSummary">Both microstructural characteristics and fracture behavior of Fe-rich phases in a high-pressure die-cast hypoeutectic Al-Si alloy were investigated. Attention was focused on the morphology......
Pressure acid leaching of black shale for extraction of vanadium LI Min-ting(李旻廷), WEI Chang(魏 昶), FAN Gang(樊 刚), LI Cun-xiong(李存兄),DENG Zhi-gan(邓志敢), LI Xin-bin(李兴彬) Faculty of Metallurgical... ____________________________________________________________________________________________ Abstract: Extraction of vanadium from black shale was attempted in pressure acid leaching. The chemical components of the sample obtained from Guizhou Province of China......
Electrogenerative leaching for sphalerite-MnO2 in the presence of Acidithiobacillus thiooxidans WANG Shao-fen(王少芬)1, XIAO Li(肖 利)2, 3, FANG Zheng(方 正)2, QIU Guan-zhou(邱冠周)2, WANG Chun... ____________________________________________________________________________________________ Abstract: A dual cell system was used to study the electrogenerative leaching sphalerite-MnO2 in the presence and absence......
with high contents of Pb, Zn, Ag, etc by oxygen pressure acid leaching was studied. It is unusual that tetrahedrite, whose treatment was rarely studied, is the primary copper mineral of the concentrates... of high and low temperature reaction kinetics and products [J]. Hydrometallurgy, 2007, 86(3/4): 191-205. [15] McDONALD R G, MUIR D M. Pressure oxidation leaching of chalcopyrite: Part II. Comparison......
Co-intensification of gold leaching with heavy metals and hydrogen peroxide YANG Yong-bin(杨永斌), LI Qian(李 骞), JIANG Tao(姜 涛), GUO Yu-feng(郭宇峰), LI Guang-hui(李光辉), XU Bin(许 斌) School...; Abstract: Co-intensification was researched to accelerate gold leaching with regards......
], and mainly due to economical reasons that sulfuric acid was preferred. Segregation roasting followed by oxidizing pressure leaching with sulfuric acid [16] was involved to recover nickel from nickel... leaching of nickel and iron from the residue was not successful. Segregation roasting was proved to be fairly effective to reduce the residue and it gave high yield of nickel leaching efficiency......
