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J. Cent. South Univ. (2017) 24: 1544-1550 DOI: 10.1007/s11771-017-3559-9 Kinetics of roasting potash feldspar in presence of sodium carbonate LIU Jia-nan(刘佳囡)1, ZHAI Yu-chun(翟玉春)1, 2, WU Yan(吴艳)1... of sodium carbonate. The effects of roasting temperature, granularity, molar ratio of sodium carbonate to potash feldspar and roasting time on the silica extraction rate were investigated. Under the optimal......
Determination of Impurity Elements in Pure Cerium Oxide Product Chen Limin1,Li Jie1,Li Peizhong1 (1.Inner Mongolia Baogang Rare Earth High Science and Technology Co. Ltd.,Baotou 014010, China) Abstract:Determination of the rare earth impurity in pure cerium oxide is done by ICP-MS.The interference and other factors which affect analytical results were discussed.The accuracy are between 0.81......
Auto recognition of carbonate microfacies based on an improved back propagation neural networkWANG Yu-xi(王玉玺)1, 2, LIU Bo(刘波)1, 2, GAO Ji-xian(高计县)3, ZHANG Xue-feng(张学丰)1, 2, LI Shun-li(李顺利)4, LIU... simple structure, smaller amount of weight and threshold and less iteration time.Key words:carbonate microfacies; quantitative recognition; bayes stepwise discrimination; backward propagation; neural......
Crystallization and Morphological Evolution of Yttrium Carbonate李永绣,黄婷,黎敏,周雪珍,罗军明,何小彬摘 要:The crystallization and morphological evolution of yttrium carbonate when aging at 50 ℃ after its precipitation by ammonium bicarbonate with feed molar ratio NH4HCO3∶YCl3=2 were investigated by means of XRD, SEM and pH situ-determination. It was found that pH value......
Different grain refinement mechanisms of minor zirconium and cerium in magnesium alloys YU Kun(余琨), LI Wen-xian(黎文献), WANG Ri-chu(王日初), ZHANG Shi-Jun(张世军) School of Materials Science...> Abstract: Zirconium and rare earth element cerium were added in magnesium and magnesium alloys to study their different grain refinement mechanisms. The results show that zirconium has......
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to construct cerium phosphate (CePO4) nanofibers. Tetraphosphoric acid formed the condensed linear polyphosphate (PnO3n+1)(n+2)- before reacting with cerium carbonate (Ce2(CO3)3) powder, which...A Facile Synthesis of Cerium Phosphate Nanofiber by Solution-solid MethodMingyun Guan, Jianhua Sun,Tongming Shang, Quanfa Zhou,Jianting Han and Aiqin Ji Jiangsu Key Laboratory of Precious Metals......
Direct fabrication of cerium oxide hollow nanofibers by electrospinning LI Mei1,CUI Qizheng2,DONG Xiangting2,WANG Jinxian2 (1.State Key Laboratory on High Power Semiconductor Lasers,Changchun... formation mechanism of CeO2 hollow nanofibers was proposed. Key words:cerium; cerium oxide; nanofibers; electrospinning; rare earths; [全文内容正在添加中] ......
J. Cent. South Univ. (2012) 19: 1802-1807 DOI: 10.1007/s11771-012-1211-2 Crystallization of calcium carbonate in hydrogels in presence of meso-tetrakis (4-hydroxylphenyl) porphyrin ZHANG Feng-ju(张凤菊... an important role in biomineralization process. In order to explore the effect of both meso-tetrakis (4-hydroxylphenyl) porphyrin (THPP) and hydrogels on calcium carbonate mineralization, and consequently......
J. Cent. South Univ. (2020) 27: 3320-3333 DOI: https://doi.org/10.1007/s11771-020-4549-x Field trial on use of soybean crude extract for carbonate precipitation and wind erosion control of sandy... and semi-arid areas. The objective of this study was to evaluate the potential of soybeans crude extract induced calcium carbonate precipitation (SICP) on reducing wind erosion risk of sandy soil. Field......