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and Engineering, Central South University, Changsha 410083, China) Abstract: To achieve the circulatory leaching of zinc oxide ores, the Bayer process was used to treat bauxite to zinc hydrometallurgy. The zinc oxide ores were leached in concentrated alkaline solution. When the temperature decreased, zinc was precipitated in the form of zinc hydroxid from solution. The concentrated mother liquor......
ARTICLE J. Cent. South Univ. (2019) 26: 467-478 DOI: https://doi.org/10.1007/s11771-019-4019-5 Removal of SO2 from flue gas using Bayer red mud:Influence factors and mechanism TAO Lei(陶雷)1, WU Heng... South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: The absorbent composing of Bayer red mud and water was prepared and applied to removing SO2 from flue gas......
for digestion of lime Bayer process is as follows: lime amount is 10% to bauxite, proportioning molar ratio is 1.45, spent liquor’s caustic soda mass concentration is controlled to about 200 g/L..., Addai-Mensah J, Gerson A R. The kinetics of desilication of synthetic spent Bayer liquor seeded with cancrinite and cancrinite/sodalite mixed-phase crystals[J]. Journal of Crystal Growth, 1999, 200......
]. Transactions of Nonferrous Metals Society of China, 2018, 28: 367-375. [6] BARNES M C, JONAS A M, GERSON A R. The kinetics of desilication of synthetic spent Bayer liquor seeded with cancrinite... the A/S of the bauxite is only 4.97. Key words: Bayer process; kaolinite; pre-desilication; dissolution kinetics; sodalite 1 Introduction Bauxite is the main raw material of the alumina production......
aluminosilicate hydrate in alumina production [J]. Light Metals, 2006(2): 13-17. [6] 刘丕旺, 朱金勇. 拜耳法溶液添加水化铁酸钙反应动力学研究[R]. 59974024. 中国铝业股份有限公司, 2003.LIU Pei-wang, ZHU Jin-yong. Report on kinetic for bayer liquor...-mineral is changed that A/S and N/S in the red mud is greatly reduced. Key words: bauxite; calcium ferrite; Bayer process; digestion  ......
activation energies were calculated to be 99.144 and 115.149 kJ/mol, respectively. Key words: gibbsite; crystal structure; dissolution; kinetics; Bayer process 1 Introduction The Bayer process..., a natural mineral in the natural environment resulting from rock weathering, is the major raw materials for the Bayer process. The parent rocks appeared during the initial eruption of volcanoes. Most......
Bayer solution ZHANG Bin(张 斌)1, 2, CHEN Qi-yuan(陈启元)2, LI Jie(李 洁)2, YIN Zhou-lan(尹周澜)2 (1. College of Materials Science and Engineering, Hunan University, Changsha 410082, China; 2. School... particle size analyzer and scanning electron microscopy, the influences of temperature and initial molar ratio of Na2O to Al2O3 (αK) on agglomeration of fine seed in Bayer process were investigated......
aluminate solution with different , and Cl-, and found the magnitude of anion incorporation into the DSPs; BARNES et al [14,15] studied the desilication kinetics of spent Bayer liquor with unseeded... ions in Bayer liquor has little effect on the type of forming scales. However, the researches focused on the atmospheric pressure desilication rarely appeared. Meanwhile, as the bauxite compositions......
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Calcium Hydroxytitanate in Bayer Digestion ProcessGu Songqing Zhengzhou Light Metal Research Institute Cao Rongjiang General Research Institute for Non-ferrous Metals,Beijing Chen Xinmin Central South University of Technology,Changsha摘 要:<正> Calcium hydroxytitanate formed in Bayer digestion process of chinese diasporic bauxite......