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that there is abundant lateritic gibbsite, which is weathered from basalt and distributed in the whole Boloven Plateau and neighbour. Al2O3 content is 30%-50%, Fe2O3 content is 25%-40... bauxite deposit and is fit for large-scale mechanized opencast working. Key words: Boloven Plateau; laterite; gibbsite; basalt  ......
: gibbsite; growth unit; combination; bond population; atomic net charge gibbsite. For the sake of gaining alumina with high strength, the combination mode of growth units of Al(OH)3 must be controlled. On the base of the investigation by LI et al[10......
; 文献标识码:A Electronic structure and optical properties of gibbsite crystal under different external stress WU Zheng-ping, CHEN Qi-yuan, YIN Zhou-lan, LI Jie (School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China) Abstract: Electronic structure and optical properties of gibbsite under different external stresses were calculated using CASTEP......
and molecular radius, and that on chemical bond force is analyzed using total energy, orbital population and orbital energy. Key words: gibbsite; combination; ab initio; DFT; chemical bond force; Van der... units of Al(OH)3 systematically. They brought forward and proved that the growth units of gibbsite were Al(OH)3-6 and Al(OH)3-6 polymer and Al6(OH)18(H2O)6 with hexagon face shape was the favorable......
the fractal dynamic behavior. Key words: gibbsite; fractal theory; box-dimension; spectral dimension; caustic aluminate solution; fracted dynamic behavior gibbsite produced by different methods: (a) Seeds A, industry grade Al(OH)3 from the Great Wall Aluminum Company; (b) Seeds B, Al(OH)3 precipitated from caustic aluminate solution promoted......
to study the mineral structure and surface characteristics of high-iron hydrargillite. Gibbsite, goethite, and hematite were found to be the main mineral components of hydrargillite, whereas the goethite and hematite were closely clad to the surface of the multilayer gibbsite crystals. Compared with the synthetic gibbsite, the hydrargillite contained more structural micropores generated by the mineral......
值的下降,氢氧化铝的形貌不断发生变化,且pH值越大,晶体越粗大;不论pH 值如何变化,氢氧化铝的晶型总是gibbsite型;铝酸钠溶液的分解率随溶液pH值降低而升高. 关键词:铝酸钠;氢氧化铝;中和;纳米丝 中图分类号:TQ 16.1 文献标识码:A Fibre-like aluminium hydroxide... value changes, the precipitates always are gibbsite. The decomposition rate increases with the decrease of pH value. Key words: sodium aluminate; aluminium hydrate; neutralization; nano-fibre  ......
Trans. Nonferrous Met. Soc. China 25(2015) 4151-4159 Dissolution kinetics and mechanism of gibbsitic bauxite and pure gibbsite in sodium hydroxide solution under atmospheric pressure Hui-bin YANG1,2..., morphology, dissolution kinetics and mechanism of gibbsitic bauxite and pure gibbsite in NaOH solution under atmospheric pressure were systematically investigated by XRD and SEM. The results show that the size......
铝3×4×2超晶胞及其各表面真空slab模型的生长习性差异显著;氢氧化铝(gibbsite)超晶胞趋向于生长为准六棱柱或厚的准六角板状晶体;(001),(100)和(010)面slab基本上是生长为楔板状晶体;(110),(101)和(112) slab的晶体形态则趋向于生长为较细长的棒状晶体;(011) slab的生长形态介于楔板状和棒状之间,很可能生长为较薄的片状晶体. 关键词:氢氧化铝;超... growth habit of gibbsite WU Zheng-ping, YIN Zhou-lan, CHEN Qi-yuan, LI Jie (Postdoctoral Exchange Station of Chemical Engineering and Technology, School of Chemistry and Chemical Engineering......
中图法分类号:TF521; TF821 文献标识:A Thermodynamics of reaction of alumina during sintering process of high-iron gibbsite-type bauxite ZHU Zhong-ping, JIANG Tao, LI Guang-hui, HUANG Zhu-cheng... in the sintering process of high-iron gibbsite-type bauxite was investigated. The results show that alumina reacts with calcium carbonate much easier than ferri oxide(Fe2O3) at the industrial sintering......