共搜索到155条信息,每页显示10条信息,共16页。用时:0小时0分1秒693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...; Abstract: Gibbsite is the usual precipitation product from alumina refineries with either Bayer or sintering process......
......
Effect of organic additives with various functional groups on gibbsite morphology ZENG Ji-shu(曾纪术), YIN Zhou-lan(尹周澜), CHEN Qi-yuan(陈启元) School of Chemistry and Chemical Engineering,, Central South University, Changsha 410083, China Received 15 July 2007; accepted 10 September 2007 Abstract: Gibbsite crystals display large varieties of shapes and sizes when grown from sodium aluminate......
J. Cent. South Univ. (2020) 27: 772-779 DOI: https://doi.org/10.1007/s11771-020-4330-1 Effect of oxalate on seed precipitation of gibbsite from sodium aluminate solution YU Hai-yan(于海燕)1, 2, ZHANG... performance and kinetics of gibbsite from sodium aluminate solution with different sodium oxalate concentrations as well as the corresponding influence mechanism of oxalate during the seed precipitation......
......
J. Cent. South Univ. Technol. (2008) 15: 622-626 DOI: 10.1007/s11771-008-0116-6 Effect of tetracarbon additives on gibbsite precipitation from seeded sodium aluminate liquor ZENG Ji-shu(曾纪术... and tetrahydrofurane on gibbsite precipitation from caustic seeded sodium aluminate liquor were investigated. The additive was charged into supersaturated seeded sodium aluminate liquor, then the precipitation ratio......
ARTICLE J. Cent. South Univ. (2019) 26: 312-322 DOI: https://doi.org/10.1007/s11771-019-4003-0 Intensifying gibbsite precipitation from sodium aluminate solution by adding a mixed seed LI Xiao-bin..., China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: Gibbsite precipitation from sodium aluminate solution was intensified by adding mixed......
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(112) planes of gibbsite surfaces are remarkably stable because of their low surface energies. In addition, the(010) plane of boehmite grows preferentially during precipitation because of its low......
(H2O)6 of gibbsite are calculated by ab initio at STO-3G, STO-3G*, STO-6G, STO-6G*, 3-21G, 6-31G levels and DFT at RB3LYP/3-21G, B3LYP/6-31G levels. The most excellent structure of Al6(OH)18(H2O)6... at 6-31G, B3LYP/6-31G, 6-31G*, B3LYP/6-31G*, 6-31G**and B3LYP/6-31G** levels. The bonding orientation of Al6(OH)18(H2O)6 is analyzed. Key words: gibbsite; ab initio; density fuction theory(DFT......
distribution dynamic model of gibbsite precipitation process during alumina production ZHANG Jia-yuan1, LI Yong-qing2, FU Ming-hui1, LIU Bin1 (1. School of Energy Science and Engineering, Central... and numerical simulation of the precipitation were synchronously applied. Based on the dynamics law and population balance, with the full characteristics of the particle size variation of the MSMPR gibbsite......