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Preparation of ultrafine silica from potash feldspar using sodium carbonate roasting technologyJia-nan Liu1,Xiao-yi Shen1,Yan Wu1,Jun Zhang1,Yu-chun Zhai1,21. School of Metallurgy, Northeastern... residue. The leaching solution was then carbonated to yield ultrafine silica. The optimized reaction conditions in the roasting process were as follows: an Na2CO3-to-potash feldspar molar ratio......
Feasibility of co-reduction roasting of a saprolitic laterite ore and waste red mudXiao-ping Wang,Ti-chang Sun,Jue Kou,Zhao-chun Li,Yu TianSchool of Civil and Resource Engineering, University... separation.Alkaline metal salts were usually added to enhance reduction of laterite ores.The feasibility of co-reduction roasting of a saprolitic laterite ore and red mud was investigated.Results show that the red......
Reaction behaviors of Pb and Zn sulfates during reduction roasting of Zn leaching residue and flotation of artificial sulfide mineralsYong-xing Zheng1,Jilai Ning1,Wei Liu2,Pan-jin Hu1,Jin-fang... sulfides and Ag-containing minerals from Zn leaching residue by the process of reduction roasting followed by flotation, the reaction behaviors of Pb and Zn sulfates during this process were investigated......
in fluidized chlorination process:A first-principles study YANG Fan(杨帆)1, 2, WEN Liang-ying(温良英)1, 2, PENG Qin(彭琴)1, 2, ZHAO Yan(赵岩)1, 2, XU Jian(徐健)1, 2, HU Mei-long(扈玫珑)1, 2, ZHANG Sheng-fu(张生富)1, 2, YANG... structures and electronic properties during chlorination process were predicted. Then, the adsorption energy, charge density, electron density difference and density of state of the adsorption structures......
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, 2002, 23(1): 20-22. [18] SHI Wen-zhong, ZHU Guo-cai, HU Jie, et al. Recovery of RE from Baotou rare earth concentrate with chlorination roasting[J]. Trans Nonferrous Met Soc China, 2003, 13(2... Thermodynamics and chloridizing roasting conditions of laterite through ammonium chloride FU Fang-ming1, HU Qi-yang1, LI Xin-hai1, WANG Zhi-xing1, LI Jin-hui1, 2, LI Ling-jun1 (1. School......
. Aluminosilicates disperse or symmetrically immerse inside goethite. The existential relation between iron and aluminium in the ore is very complex. Magnetic separation and magnetization roasting-magnetic separation are unable to remove aluminum effectively because they are unable to destroy the isomorphous structure of the ore. However, most of aluminum can be removed by sodium-salt-added roasting......
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residue, a corresponding technology to prepare mangano-manganic oxide was adopted as follows: low temperature sulfating roasting tungsten residue, leaching, removal of impurities in leachate, precipitation of manganese and oxidation of manganese hydroxide. The product was analyzed by SEM and XRD. The results of roasting and leaching show that the recovery of Mn is 88.9% after roasting with 150% excess......
Effect of reduction roasting by using bio-char derived from empty fruit bunch on the magnetic properties of Malaysian iron oreNurul A.Yunus1,Mohd H.Ani1,Hamzah M.Salleh1,Rusila Z.A.Rashid1,Tomohiro... of the weak magnetic properties of Malaysian iron ore. In this study, bio-char derived from oil palm empty fruit bunch(EFB) was utilized as an energy source for reduction roasting. Mixtures of Malaysian......