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Preliminary Study on Enrichment Law of Associated Rare Earth Elements in High-Sulfur Bauxite from Guizhou刘志红,岳紫龙,张覃,卯松,成奖国,聂光华,牛芳银摘 要:The Inductively Coupled Plasma-mass Spectrometer (ICP-MS) was used for measuring the content of rare earth elements in Guizhou high-sulfur and high-silicon bauxite ore and products of mineral processing. The results show......
Trans. Nonferrous Met. Soc. China 29(2019) 397-406 Removal and recovery of titanium (IV) from leach liquor of high-sulfur bauxite using calcium alginate microspheres impregnated with di-(2-ethylhexyl..., Shenyang 110036, China Received 4 January 2018; accepted 7 September 2018 Abstract: In the leaching solution of high-sulfur bauxite roasted by sulfuric acid, a high concentration of aluminum presented along......
oxidation is lower than by adding sodium nitrate or hydrogen peroxide. The results of this research reveal that wet oxidation is an economical and feasible method for the removal of sulfur in alumina production process to improve alumina quality, and provide valuable guidelines for alumina production by high-sulfur bauxite.Key words:high-sulfur bauxite; alumina production; desulfurization; wet oxidation......
Suspension calcination and alkali leaching of low-grade high-sulfur bauxite:Desulfurization, mineralogical evolution and desilicationHong-fei Wu1,2,Jun-qi Li1,2,Chao-yi Chen1,2,Fei-long Xia1,2,Zhen... 要:To enable the utilization of low-grade and high-sulfur bauxite, the suspension calcination was used to remove the sulfur and the activate silica minerals......
of pyrite in high-sulfur bauxite with microwave roasting process JIN Huixin1, 2, WU Fuzhong1, 2, LI Junqi1, CHEN Chaoyi1, LIU Hongling1, YANG Qian1 (1. College of Materials and Metallurgy, Guizhou...-sulfur bauxite by traditional roasting process has obvious issues, such as high temperature, long time and low desulfurization rate, the microwave roasting process was carried out to remove sulfur......
and reducing caustic consumption during the high-sulfur bauxite treatment by the Bayer process. Key words: high-sulfur bauxite; sodium aluminate solution; sulfur-bearing ion; iron-containing phase; transformation 1 Introduction More than 560 million tons of high-sulfur diasporic bauxite resources have not been effectively utilized in China [1,2]. The main sulfide mineral in the bauxite is pyrite......
]. Corrosion Science, 2014, 86: 252-260. [5] 胡小莲, 陈文汨, 谢巧玲. 高硫铝土矿氧化钙焙烧脱硫研究[J]. 轻金属, 2010(1): 9-14. HU Xiao-lian, CHEN Wen-mi, XIE Qiao-ling. Study on desulfuration of high sulfur bauxite by calcium oxide roasting[J]. Light Metals, 2010(1): 9-14. [6] LOU Zhen-ning, XIONG Ying, FENG Xiao-dong, SHAN Wei-jun, ZHAI Yu-chun. Study on the roasting and leaching behavior of high-sulfur bauxite using ammonium......
; 文章编号:1672-7207(2016)08-2577-07 Desulfurization roasting of high sulfur bauxite in suspended state CHEN Yanxin, ZHAO Bo, JIU Shaowu, WU Feng, HAN Ding (School of Materials and Mineral Resources, Xi′an University of Architecture and Technology, Xi’an 710055, China) Abstract: Desulfurization roasting of high sulfur bauxite (S mass fraction of 1.35%) from Guizhou......
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Trans. Nonferrous Met. Soc. China 30(2020) 1662-1673 Digestion mechanism and crystal simulation of roasted low-grade high-sulfur bauxite Hong-fei WU1,2, Chao-yi CHEN1,2, Jun-qi LI1,2, Yuan-pei LAN1,2... Laboratory of Metallurgical Engineering and Process Energy Saving, Guiyang 550025, China Received 14 September 2019; accepted 6 May 2020 Abstract: Low-grade high-sulfur bauxite was pretreated via......