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Effect of Na2O on alumina leaching property and phase transformation of MgO-containing calcium aluminate slags WANG Bo, SUN Hui-lan, GUO Dong, ZHANG Xue-zheng School of Materials Science... aluminate slags, the method of adding Na2O into calcium aluminate slags was studied and its effect on leaching mechanism was also analyzed. The results show that the alumina leaching efficiency......
Behavior of SiO2 in the leaching process of alumina clinker with high concentrationBin Chen,Xiaobin Li,and Guihua Liu School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China摘 要:It is essential for alumina production by alkaline process to know the behavior of minerals containing Al and Si in basic solution......
from the coal gangue, an integrated process is proposed. The process consists of three steps: 1) concentrating alumina from the coal gangue via activation roasting followed by alkali leaching of SiO2... and reusing excess caustic liquor; and 3) enriching titanium component from the Bayer process residue by sulfuric acid leaching. Alumina concentrate with 69.5% Al2O3 and mass ratio of alumina to silica (A/S......
J. Cent. South Univ. (2020) 27: 27-36 DOI: https://doi.org/10.1007/s11771-020-4275-4 Kinetics of leaching lithium from lepidolite using mixture of hydrofluoric and sulfuric acid WANG Hai-dong(王海东)1... shows great potential in leaching lithium (Li) from lepidolite. Leaching kinetics of Li in a mixture of sulfuric acid and hydrofluoric acid, which is a typical lixivant for the fluorine-based chemical......
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Trans. Nonferrous Met. Soc. China 27(2017) 2090-2095 Synthesis and alumina leaching mechanism of calcium sulphoaluminate Bo WANG1,2, Wei-qin CHU1, Yuan-liang HAO1, Shuo RONG1, Hui-lan SUN1,2 1... by sintering at 1375 °C for 2 h with analytically pure carbonate calcium, alumina and dihydrate calcium sulfate. The crystal structure of C4A3S was characterized by XRD, SEM and TEM. Alumina leaching......
Article ID: 1003-6326(2005)02-0306-04 Synthesis and characterization of single-crystalline alumina nanowires ZHAO Qing(赵 清), XU Xiang-yu(徐向宇), ZHANG Hong-zhou(张洪洲), CHEN Yao-feng(陈耀锋), XU Jun(徐 军), YU Da-peng(俞大鹏) (School of Physics, State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871, China) Abstract: Alumina nanowires were synthesized on large-area......
with the results shown in Table 3. The iron content in leaching residue reaches 87.32%, whereas the alumina content is 3.63%. The enrichment of alumina in the leaching residue can be attributed to the formation...-hua, PENG Zhi-hong. Efficient separation of silica and alumina in simulated CFB slag by reduction roasting-alkaline leaching process [J]. Waste Management, 2019, 87: 798-804. DOI: 10.1016/j......
Alumina nanostructures prepared by two-step anodization process ZHOU Jian-hua(周建华), HE Jian-ping(何建平), ZHAO Gui-wang(赵桂网), ZHANG Chuan-xiang(张传香), ZHAO Ji-shuang(赵继爽), HU Huo-ping(胡火平) College...; Abstract: Alumina nanostructures were obtained by two......
中Al2O3的溶出性能 Fig. 8 Alumina leaching property of Na2O-CaO-Al2O3 materials at 800-1350 ℃ for 4.0 h 图9 1350 ℃,0~2.0 h时Na2O-CaO-Al2O3物料中Al2O3的溶出性能 Fig. 9 Alumina leaching property... of Na2O on alumina leaching property and phase transformation of MgO-containing calcium aluminate slags[J]. Transactions of Nonferrous Metals Society of China, 2011, 21(12): 2752-2757. [2] ZHANG Di, PAN......
