共搜索到84条信息,每页显示10条信息,共9页。用时:0小时0分0秒453毫秒
Adjustment on gibbsite and boehmite co-precipitation from supersaturated sodium aluminate solutions WANG Zhi(王 志)1, YANG Liu(杨 柳)1, 2, ZHANG Juan(张 娟)1, 2, GUO Zhan-cheng(郭占成)1, ZHANG Yi(张 懿)1 1.... However, the advantage of boehmite precipitation over gibbsite precipitation is the significant energy saving in the subsequent calcination step. The current investigation takes a pragmatic approach......
Influence of hydrothermal temperature on structure and microstructure of boehmite FU Gao-feng(付高峰)1, WANG Jing(王 晶)2, XU Bing(徐 冰)2, GAO Hong(高 宏)2, XU Xiu-lin(徐秀林)2, CHENG Hao(成 豪)1...-boehmite into well-crystallized boehmite takes place. The micro-morphologies change also from irregular clew to thin cubic platelets. From the mass loss of the samples prepared at different temperatures......
Precipitation of spherical boehmite from concentrated sodium aluminate solution by adding gibbsite as seedGui-hua Liu,Zheng Li,Xiao-bin Li,Tian-gui Qi,Zhi-hong Peng,Qiu-sheng ZhouSchool of Metallurgy and Environment, Central South University摘 要:The precipitation of spherical boehmite was studied by surface energy calculations, measurements......
中图分类号:TF111.3 文献标志码:A Boehmite precipitation from sodium aluminate solution intensified by adding NaHCO3 ZHANG Juan1, 2, WANG Zhi1, GUO Zhan-cheng1, 3 (1. National...: Boehmite was precipitated with seeds from sodium aluminate solution intensified by NaHCO3, and the influence of seed ratio (SR) and adding NaHCO3 methods on precipitation process and products was studied......
, the Chinese Academy of Sciences, Beijing 100049, China) Abstract: The boehmite was prepared from sodium aluminate solution by coupling-precipitation, the carbonization and seed precipitation were adopted to induce the reaction and crystallization of aluminate ions. The effects of seed on precipitation rate and mass fraction of boehmite were investigated. The results indicate that the products......
......
钠溶液;水热种分;低密度一水软铝石 中图分类号:TF 123.7 文献标识码:A Process conditions for very light boehmite precipitation from sodium aluminate solution CAI Wei-quan1, YU Xiao-feng2 (1... of decomposition conditions on the ratio of seeded decomposition and properties of precipitation products from sodium aluminate (SA) solutions with the very light boehmite seed prepared from the hydrothermal......
勃姆石(γ-AlOOH)溶胶的制备及表征 石涛1,杨辉1,郭兴忠1 (1.浙江大学,材料科学与工程学系,浙江,杭州,310027;2.浙江大学,绿色建材与应用技术工程研究中心,浙江,杭州,310027) 摘要:以异丙醇铝为先驱体,采用Yoldas方法成功地制备了勃姆石(γ-AlOOH)溶胶:并采用XRD,FTIR,UV-Vis分光光度计和TEM测试技术对勃姆石溶胶进行表征.研究结果表明,制备所得的勃姆石溶胶稳定,透明,溶胶粒子结晶性好,形貌呈纤维状,长度大约为60~100 nm. 关键词:异丙醇铝; 勃姆石(|-AlOOH)溶胶; 表征; aluminum isopropoxide; boehmite(γ-AlOOH)sol; characterization; [全文内容正在添加中] ......
有形貌. 关键词:薄水铝石;前驱体;微观结构;水热法 中图分类号:TQ050.4+21 文献标志码:A Effect of aluminum salt precursors on microstructure of boehmite prepared by hydrothermal...) boehmite architectures were synthesized via a hydrothermal method. The effect of precursors on the morphology of boehmite was investigated. The results show that the flower-like AlOOH with diameter......
and Metallurgy, Northeastern University, Shenyang 110004, China Received 17 March 2010; accepted 13 June 2010 Abstract: Mechanism functions and kinetic parameters of AlOOH (boehmite or diaspore) dissolving in sodium hydroxide solution were researched. The mixture of boehmite or diaspore and caustic solution was scanned by high-pressure differential scanning calorimetry (DSC) instrument with heating......