共搜索到6933条信息，每页显示10条信息，共694页。用时：0小时0分0秒514毫秒
......
Effects of minerals in ferric bauxite on sodium carbonate decomposition and volatilizationHU Wen-tao(胡文韬)1, WANG Hua-jun(王化军)1, LIU Xin-wei(刘欣伟)1, SUN Chuan-yao(孙传尧)1, 2(1. Key Laboratory of High... and Technology(Beijing General Research Institute of Mining and Metallurgy), Beijing 100070, China;)Abstract:Direct reduction is an emerging technology for ferric bauxite utilization. However, because......
Recovery of iron and calcium aluminate slag from high-ferrous bauxite by high-temperature reduction and smelting processYing-yi Zhang1,2,Wei Lü1,Yuan-hong Qi2,Zong-shu Zou31. College of Materials... University摘 要:A high-temperature reduction and smelting process was used to recover iron and calcium aluminate slag from high-ferrous bauxite. The effects......
Trans. Nonferrous Met. Soc. China 30(2020) 1980-1990 Enrichment and separation of iron minerals in gibbsitic bauxite residue based on reductive Bayer digestion Xiao-bin LI1,2, Zhao-yu ZHOU1,2, Yi-lin..., China Received 10 October 2019; accepted 6 May 2020 Abstract: The mineralogical characteristics of three kinds of gibbsitic high-iron bauxite and the effects of various digestion conditions......
Reaction behavior and mechanism of anatase in digestion process of diasporic bauxite LI Xiao-bin(李小斌), FU Wei-an(付伟岸), ZHOU Qiu-sheng(周秋生), LIU Gui-hua(刘桂华), PENG Zhi-hong(彭志宏) School... of CaO added and composition of aluminate solution on reaction behavior of pure anatase in high-pressure digestion process of bauxite, reaction mechanism of anatase was preliminarily determined......
均,主要集中在夏季,占全年降雨量的45%~60%. 1.2 样品采集 图1 赤泥堆场样点分布图 Fig. 1 Distribution of sampling point in bauxite residue disposal areas 2014年8~10月,选择已闭库的赤泥堆场为研究区域,赤泥均为拜耳法赤泥(用拜耳法生产工艺提炼铝土矿产生的赤泥).根据堆置...对应的赤泥排放年份见表1. 表1 赤泥堆场采样点堆存时间 Table 1 Discharge years of bauxite residue in BRDAs 1.3 样品分析 制备赤泥水比为1:5的浸出液,盐分含量用烘干残渣-质量法测定[15],pH用pH计(雷磁PHS-3C型)测定[15],EC值用电导率仪(雷磁DDS-307型)测定[15],双指示剂中......
......
ARTICLE J. Cent. South Univ. (2019) 26: 343-352 DOI: https://doi.org/10.1007/s11771-019-4006-x Isolation of an acid producing Bacillus sp. EEEL02: Potential for bauxite residue neutralization WU... of Limerick, Co. Limerick, Ireland Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: Bauxite residue deposit area (BRDA) is a typical abandoned mining......
J. Cent. South Univ. Technol. (2008) 15: 188-192 DOI: 10.1007/s11771-008-0036-5 Synthesis of N, N-diethyl dodecyl amine and its flotation properties on bauxite CAO Xue-feng(曹学锋), ZHANG Li-min(张... to SiO2 in concentrate obtained from separation artificial mixture is higher than 10, suggesting that DEN12 can be used as a collector to separate the aluminosilicates from diaspore in bauxite ores......
老挝铝土矿中铁矿物微观结构及反应特性的研究仓向辉1(1.河南省郑州市铝业股份有限公司郑州研究院)摘 要:利用扫描电镜及能谱仪对铝土矿中铁矿物微观结构及成分进行分析,着重研究铝土矿中赤铁矿,针铁矿,钛铁矿等矿物的存在方式及分布特征.结果表明,针铁矿较多时明显影响赤泥的沉降速度,碳加入量大于10%及高温溶出能显著改善老挝矿的溶出效果,赤铁矿不与矿石中各组分和铝酸的溶液反应而直接进入赤泥中.关键词:微观结构； 铁矿物； 反应特性； 铝土矿......
