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Preparation of zirconium by electro-deoxidization in molten salt LI Qing-yu(李晴宇), DU Ji-hong(杜继红), XI Zheng-ping(奚正平) Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China... by electro-deoxidization method. Using CaCl2 molten salt as electrolyte, sintered ZrO2 pallets as cathode, graphite rod as anode, the pallets were electrolyzed at 900 ℃ and 3.1 V for 8, 10 and 12 h......
vanadate were investigated by adding wet fresh residue or the roasted residue. 5.1 Removal of vanadate from sodium chromate by adding residue Our experimental results showed that the wet fresh CaCO3 could... that the roasted residue can be substituted for lime in vanadate removal from sodium chromate solution. Table 9 shows the removal rate of vanadate with addition of the roasting residue. Table 9 shows......
Galena-pyrolusite co-extraction in sodium chloride solution and its electrochemical analysis LONG Huai-zhong(龙怀中)1, CHAI Li-yuan(柴立元)1, QIN Wen-qing(覃文庆)2 1. School of Metallurgical Science...; Abstract: The co-extraction behavior of galena-pyrolusite in a sodium chloride solution and the electrochemical mechanism of this process were investigated, and some factors affecting the leaching rate of Pb......
atmosphere after firstly oxidation roasted ZHONG Da-peng(钟大鹏)1, 2, LI Lei(李磊)1, 2, 3, TAN Cheng(谈诚)1, 2 1. State Key Laboratory of Complex Non-ferrous Metal Resources Clean Utilization, Kunming... firstly oxidation roasted. CO–CO2 mixture gas was used as reducing agent, and the antimony-containing phase was reduced into Sb4O6, volatilized into smoke, and finally recovered through the cooling......
depressants. Sodium humate is the sodium salt of humic acid and can be extracted from leonardite which is complicated, naturally forming organic compounds with high relative molecular mass. CHEN et al [10...Flotation separation of chalcopyrite from galena by sodium humate and ammonium persulfate Rui-zeng LIU1, Wen-qing QIN1, Fen JIAO1, Xing-jie WANG1, Bin PEI2, Yong-jun YANG2, Chun-hua LAI3 1. School......
°C for 60 min, and then the digestion experiment was simultaneously carried out in a molten salt furnace by the Bayer process for both the crude ore and the roasted ore at dissolution temperatures... process is an effective way to remove sulfide sulfur from high sulfur-containing bauxite, the content of S2- in crude ore in the digestion liquor is above 1.7 g/L, but in the roasted ore digestion......
chloride), carnallite, polyhalite and arcanite. These are often found in salt lake brine, underground brine, and seawater and are accompanied by other elements, including magnesium, sodium, lithium, rubidium... J. Cent. South Univ. (2021) 28: 2003-2009 DOI: https://doi.org/10.1007/s11771-021-4667-0 Separation of potassium from sodium in alkaline solution by solvent extraction with 4-tert-butyl-2-(α......
Vanadium Carbide Coating Growth on Die Steel Substrate in Borax Salt Bath王洪福School of Materials Science and Engineering, Wuhan University of TechnologySchool of Mechanical Engineering and Automation, North University of China摘 要:Vanadium pentoxide, borax, boron carbide and sodium fluoride were used to grow vanadium carbide coating on die steel(Cr12......
Composition Variation of Borax Salt during the Process of Vanadizing by Thermal Diffusion王洪福School of Mechanical Engineering and Automation,North University of China摘 要:Vanadium pentoxide,borax,boron carbide and sodium fluoride were used to grow vanadium carbide coating on surface of Cr12 steel at 950 ℃ by TD process.The coating of vanadium carbide(VC......
By the application of sub-molten salt, most Al2O3 and Na2O in red mud was recovered under low temperature. Key words: red mud; sub-molten salt; alumina; sodium oxide ...化铝；氧化钠 中图分类号:TQ 133.1 文献标识码:A Recovery of Al2O3 and Na2O from red mud by sub-molten salt ZHONG Li1, 2, ZHANG Yi-fei1 (1. Institute of Process......
