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| 1 | Process optimization of neodymium chloride solutions precipitated by magnesium bicarbonate显示文摘Rare earths(REs) are of vital importance for the development of new materials and green energy.Magnesium bicarbonate is one of the most recyclable and environmental-friendly precipitant for REs recovery from leaching solutions. Nd_2(CO_3)_3 has difficulties in industrial production. So in this study,the precipitation of neodymium from chloride solution by magnesium bicarbonate are investigated. The effects of feeding method, [HCO_3^-]/[Nd^(3+)] mole ratio, feeding speed and reaction temperature on yield and impurity(magnesia) content are systematically studied. Results show that the impurity(magnesia)content decreases to 0.010 wt% with a yield approaching to 100% obtained under the conditions of[HCO_3^-]/[Nd^(3+)] = 3.00 by parallel flow addition at 50 ℃. The major impurity(magnesia) in rare earth carbonates mainly presents in the form of physical absorption, which can be easily removed by scrubbing. Therefore, it offers a promising green process that uses magnesium bicarbonate to produce neodymium carbonate due to its cycling of carbon dioxide, magnesium salt and waste water. | Yannan Yan Yang Xu Xiaowei Huang Zongyu Feng Yongke Hou Kai Li Liangshi Wang Yihanna Hu | 2019 | Journal of Rare Earths2019，37，4： | 10 |
| 2 | Synthesis of hexaaluminate catalysts for methane combustion by reverse microemulsion medium显示文摘The aim of this study is to synthesize the catalysts of Fe-and Mn-substituted hexaaluminate by reverse microemulsion medium for methane catalytic combustion application.Pseudo-ternary phase diagrams in quaternary microemulsion systems of cetyltrimethylammonium bromide(CTAB),n-butanol,n-octane,and water [or Al(NO3)3 solution] were presented.The effects of the alcohol chain length,ratio of sur-factant to cosurfactant,and salt concentration on the formation and stability of microemulsion systems were studied.The phase behavior of microemulsion systems was confirmed through the varying of the conductivity with the water content.The performance and structure of the catalysts,La(Mnx/Fex)Al12-x-O19-δ synthesized with the optimal parameter in the phase diagrams of microemulsions systems were characterized by BET,TG-DTA,and XRD.The micro fix-bed reactor was used to measure the catalytic activities of catalysts to methane combustion.The results showed that this synthesis method could yield non-agglomerated and highly dispersed precursors that would undergo crystallization at the lower temperature of 950℃.When temperature was raised up to 1050℃,the complete crystalline La-hexaaluminate was shaped.The hexaaluminate substituted with Fe had high-catalytic activity and stability at high temperature,while the Mn-substituted had higher catalytic activity at lower temperature.When the cooperation of Fe and Mn occurred,i.e.,LaFeMnAl10O19-δ exhibited a high surface area and catalytic activity to CH4 combustion,the CH4 light-off temperature was only 475℃ and the complete combustion temperature was 660℃.This was attributed to the synergistic effect between Fe and Mn. | BAI ShouLi WANG LiangShi SHI BingJie YANG PengCheng CUI MeiSheng LONG ZhiQi LI DianQing CHEN AiFan | 2009 | Science China Chemistry2009，52，1： | 6 |
| 3 | Geology and Geochemistry of the Yangtizishan-Moshishan Metamorphosed Sedimentary Anatase Deposit in Zhenglan Qi,Inner Mongolia:Discovery of a New Genetic Type of Titanium Deposit显示文摘锐钛矿和它的 allomorphic 矿物质金红石在钛矿物质资源之中有最突出的经济意义并且在中国当前组成非常需要的矿物质资源之一。Yantizishan-Moshishan 锐钛矿沉积物先前被叫作基于作者相信的最近的调查和探索的铁沉积物属于一种新基因类型是大变形沉积锐钛矿主导的沉积物的。矿石身体在 Mesoproterozoic (1751 妈) 发生在 stratoid 和透镜的形式片岩, metasandstone (metasiltstone ) ,和角闪岩。富有的矿石让 perthitic 组织主要包括 interbedded 石英 perthite (与传播锐钛矿和金红石) 并且锐钛矿 perthite。矿石矿物质主要是锐钛矿并且辅助地金红石和钛铁矿(?????????? ￡吗? | ZHAO Yiming LI Daxin WU Liangshi CHEN Wenming FENG Chengyou WANG Peihua GAO Xuedong | 2011 | Acta Geologica Sinica(English Edition)2011，85，6： | 4 |
| 4 | Supersymmetric Unitary Operator for Some Generalized Jaynes Cummings Model显示文摘 | FAN Hongyi LI Liangshi | 1996 | Commun Theor Phys1996，25，： | 1 |
| 5 | Discrete-phase simulation of single bubble rise behavior at ele-vated pressures in a bubble column显示文摘 | LI Yong ZHANG Jianping FAN Liangshi | 2000 | Chemical Engi-neering Science2000，55，20： | 1 |
| 6 | Semiconductor nanorod liquid crystals显示文摘 | Li Liangshi Joost Walda Liberato Manna | 2002 | Nano Lett2002，2，6： | 1 |
| 7 | Linearly polarized emission from colloidal semiconductor quantum rods显示文摘 | Hu Jiangtao Li Liangshi Yang Weidong | 2001 | Science2001，292，： | 1 |
| 8 | Semiempirical pseudopotential calculation of electron state of CdSe quantum rods 显示文摘 | Hu Jiangtao Wang Linwang Li Liangshi | 2002 | J Phys Chem B2002，106，： | 1 |
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