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. The suitable addition of fluorite and sodium sulfate are conducive to the reduction of titanomagnetite, the ulvospinel are further reduced to ilmenite and ferrous pseudobrookite. The metallic iron particles.... [10] EUNGYEUL P, OLEG O. Effects of preoxidation of titania-ferrous ore on the ore structure and reduction behavior[J]. ISIJ International, 2004, 44(1): 74-83. [11] HU T, L? X W, BAI C. Reduction......
J. Cent. South Univ. Technol. (2010) 17: 760-764 DOI: 10.1007/s11771-010-0553-x Solvent extraction of zinc from zinc sulfate solution LONG Huai-zhong(龙怀中)1, CHAI Li-yuan(柴立元)1, QIN Wen-qing(覃文庆)2...; Abstract: The extraction of zinc from zinc sulfate solution was investigated, using 20% saponified D2EHPA as an extractant and 260# sulfonate kerosene......
08901, USA)Abstract:The aniline degradation by persulfate activated with ferrous ion (Fe2+) was investigated in batch reactor at ambient temperature. The experimental factors in aqueous solutions..., but much more ferrous ion inhibits the aniline degradation. When the aniline concentration is 0.10 mmol/L, the maximum aniline degradation occurs at the S2O82- to Fe2+ molar ratio of 250/5 at pH 7.0.......
Metallurgical Quarterly, 1977, 16(1): 111-117. [8] DREISINGER D B, PETERS E. The oxidation of ferrous sulfate by molecular oxygen under zinc pressure-leach conditions[J]. Hydrometallurgy, 1989, 22(1): 101-119. [9] HASEGAWA F, TOZAWA K, NISHIMURA T. Solubility of ferrous sulfate in aqueous solutions at high temperatures[J]. Journal of the Mining and Materials Processing Institute of Japan(Japan), 1996......
J. Cent. South Univ. (2012) 19: 2340-2347 DOI: 10.1007/s11771-012-1280-2 Railway tunnel concrete lining damaged by formation of gypsum, thaumasite and sulfate crystallization products in southwest... and Springer-Verlag Berlin Heidelberg 2012 Abstract: The railway tunnel concrete lining exposed to sulfate-bearing groundwater beyond 40 years in southwest of China was investigated. Field investigation......
in hydrometallurgy[M]. Beijing: Metallurgical Industry Press, 1991: 112-135. [7] DREISINGER D B, PETERS E. The oxidation of ferrous sulfate by molecular oxygen under zinc pressure leach conditions[J]. Hydrometallurgy, 1989, 22(1): 101-119. [8] CHENG T C, DEMOPOULOS G P. Hydrolysis of ferric sulfate in the presence of zinc sulfate at 200 ℃: precipitation kinetics and product characterization[J]. Industrial......
on a mass-production scale. The well-defined particles were synthesized by mixing the iron(II) sulfate heptahydrate solution with silver nitrate solution directly by high-speed stirring at room temperature. It is found that a large number of micro-sized and uniform spherical particles with rough surfaces are obtained. The mass ratio of iron(II) sulfate heptahydrate to silver nitrate greatly affects......
Removal of SO42-, uranium and other heavy metal ions from simulated solution by sulfate reducing bacteria WANG Qing-liang(王清良)1, 2, DING De-xin(丁德馨)2, HU E-ming(胡鄂明)2, YU RUN-lan... and results in the groundwater contamination. The effects of pH values of the simulated solution on the reduction of SO42- and the removal of uranium and other heavy metal ions by sulfate reducing bacteria(SRB......
Treatment of simulated wastewater from in situ ching uranium mining byzerovalent iron and sulfate ducing bacteria YI Zheng-ji(易正戟)1, 2, LIAN Bin(连 宾)1, YANG Ying-qun(杨颖群)2, ZOU Jian-ling(邹建陵)2 1...) and sulfate reducing bacteria (SRB) can function synergistically and accelerate pollutant removal. Batch experiments suggest that combining ZVI with SRB can enhance the removal of U(Ⅵ) synergistically......
Microstructure Analysis of Microwave Sintered Ferrous PM Alloys彭远东,易健宏摘 要:The properties and microstructure of microwave and conventional sintered Fe-2Cu-0.6C powder metallurgy (PM) alloys were investigated. The experimental results show that microwave sintered alloy has the better properties (sintered density 7.20 g/cm3, Rockwell hardness 75 HRB......
