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diasporic bauxite with low and medium grades by lime Bayer process CHEN Bin, XIAO Li, TANG Xianmin (College of Metallurgical Engineering, Hunan University of Technology, Zhuzhou 412011, China) Abstract: The digestion experiments of lime Bayer process using diasporic bauxite from Guizhou Province with low and medium grades (alumina-silica ratio is 5.48) were completed. The influences of lime amount......
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......
开采岩溶堆积型铝土矿床的贫化,损失控制 黄三江1 (1.平果铝业公司,广西平果县 531400) 摘要:岩溶堆积型铝土矿是一种新的矿床类型,开采方法独特,贫化,损失产生的原因及其控制方法有其自身的特点,在多年的实践中,初步总结了开采该类型矿床的贫化,损失控制方法. 关键词:岩溶堆积型铝土矿; 贫化; 损失; 控制方法; Karst accumulative bauxite deposit; Ore dillution; Ore loss; Controlling method; [全文内容正在添加中] ......
Trans. Nonferrous Met. Soc. China 26(2016) 2724-2730 Three-dimensional orebody modelling and intellectualized longwall mining for stratiform bauxite deposits Shao-feng WANG1, Xi-bing LI1, Shan-yong... diameter, a virtual longwall mining procedure was modelled by simulating the actual fully mechanized longwall mining process. Based on the above work, a bauxite deposit in a longwall mining panel......
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Trans. Nonferrous Met. Soc. China 22(2012) 483-488 Synthesis of aluminum tri-polyphosphate anticorrosion pigment from bauxite tailings LU Qing-hua1, HU Yue-hua2 1. School of Metallurgical Science...; accepted 21 July 2011 Abstract: Aluminum tri-polyphosphate was synthesized from bauxite tailings and phosphoric acid with a P/Al molar ratio of 3. This is highly advantageous from a waste recycling......
and revegetation of bauxite residues (Red mud)[J]. Environmental Science and Pollution Research, 2016, 23(2): 1120-1132. [6] 张 迪, 于海燕, 潘晓林, 翟玉春. 氧化铝赋存形式对低钙烧结熟料矿相转化的影响[J]. 中国有色金属学报, 2015, 25(12... of Nonferrous Metals, 2015, 25(12): 3497-3504. [7] GRAFE M, KLAUBER C. Bauxite residue issues: IV. Old obstacles and new pathways for in situ residue bioremediation[J]. Hydrometallurgy, 2011, 108(1/2): 46-59......
夹沟铝土矿矿渣充填复垦的环境影响试验张志沛1,董小波1,蒋蕾1,饶晓1(1.陕西省西安市西安科技大学地质与环境学院)摘 要:以夹沟铝土矿矿渣为对象进行浸泡试验,测定浸出液的pH和Cr6+,Cu2+,Zn2+,Pb2+,Cd2+等的含量,对照矿区矿坑水和地下水水质检测结果,分析充填矿渣对地下水环境的影响.浸出液各项指标测定结果均在国家标准以内,重金属离子随浸泡时间增加而缓慢上升并趋于平衡,矿渣复垦不会对地下水环境造成二次污染.关键词:环境工程； 铝土矿渣； 浸泡； 地下水； 充填复垦； 二次污染......
保持相对稳定. 致谢 感谢审稿专家提出的宝贵修改意见. REFERENCES [1] 刘祥民.中国铝土矿资源可持续发展战略研究[J]. 中国金属通报, 2005(14): 9-11. LIUXiang-min. Study on sustainable development strategy of bauxite resources in China[J]. China Metal... in China[J]. The Chinese Journal of Nonferrous Metals, 2020, 30(4): 709-718. [3] 孙莉, 肖克炎, 娄德波.中国铝土矿资源潜力预测评价[J].地学前缘, 2018, 25(3): 82-94. SUN Li, XIAO Ke-yan, LOU De-bo. Mineral prospectivity of bauxite......
.图6所示为铝土矿开采后采空区护顶层实景图.由图6可知本文理论公式计算结果符合开采设计要求,验证了理论计算结果的科学性. 图6 铝土矿采空区护顶层实景图 Fig. 6 Protective roof view of bauxite mine goaf 5 结论 1) 考虑顶板岩石力学性质劣化对顶板稳定性影响,构建矿体护顶层力学模型,推导出护顶层安全厚度数学表达式,研究硬质黏土层顶板的铝土矿采空区护......
