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Effect of vanadium occurrence state on the choice of extracting vanadium technology from stone coalWANG Mingyu XIANG Xiaoyan ZHANG Liping XIAO Liansheng School of Metallurgical Science... the present study,the effects of vanadium occurrence state in stone coal,roasting temperature and additive agent on the leach- ing efficiency of vanadium were studied.The results indicate that the effect......
Effects of additives on the phase transformation, occurrence state, and the interface of the Ti component in Ti-bearing blast furnace slagLi Zhang1,Wu Zhang2,Ju-hua Zhang3,Guang-qiang Li31. School... and Technology摘 要:The influences of additives on the phase transformation, occurrence state, and the interface of the Ti component in Ti-bearing blast furnace slag......
in the smelting process and occurrence state in each phase were characterized by X-ray diffraction, optical microscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy, electron.... Key words: jamesonite concentrate; oxygen-enriched; direct smelting; lead-antimony alloy; Fe; occurrence state Foundation item: Project(51474248) supported by the National Natural Science Foundation......
辽宁夹山金铜矿区金的赋存状态研究徐万臣1,牛娜1,张明仁1(1.辽宁省沈阳市辽宁省地质矿产研究院)摘 要:辽宁夹山金铜矿区物质组分和金的赋存状态研究结果表明,矿石的主要金属矿物有黄铁矿,黄铜矿,方铅矿,闪锌矿,银金矿,自然金等,这种典型矿物组合可作为寻找和评价金矿床的找矿矿物学标志.金矿物的形态以不规则状为主,且粒度细小;金的成色平均为744.金的赋存状态有明金,显微金(裂隙金,晶隙金和包体金)和超显微金,以显微金为主,裂隙金,晶隙金和包体金赋存于黄铁矿,黄铜矿等矿物中,金与黄铁矿关系密切,黄铁矿是金的主要载体......
某含钙钒榴石型石煤的工艺矿物学及钒的赋存状态徐永新1,侯运炳1,杨欢2(1.北京市矿业大学2.北京华夏建龙矿业科技有限公司,北京 100070)摘 要:对湖北某地的含钙钒榴石型石煤矿进行工艺矿物学研究.该矿物中钒的赋存状态主要是独立的钒矿物,少量赋存在碳质物中.钒矿物中主要是钙钒榴石,其次是钒云母和少量的含钒榍石,粒度分布范围分别为0.105~0.5mm,0.03~0.06mm和0.02~0.05mm.关键词:工艺矿物学； 石煤； 钒的赋存状态； 钙钒榴石......
甘肃大水金矿床金的赋存状态和金矿物特征代文军1,雒晓刚1,史文全1,马小云1(1.甘肃省兰州市甘肃省地矿局第三地质矿产勘查院)摘 要:利用光学显微镜观察和电子探针分析,对大水金矿床金矿物的特征研究表明,矿石中金属矿物主要为黄铁矿,黄铜矿,含铁砷黝铜矿,赤铁矿,褐铁矿,孔雀石,磁黄铁矿和自然金等;非金属矿物主要为玉髓状石英,方解石,白云石,长石和绢云母等.矿石中金矿物以自然金为主,其次是银金矿,自然金颗粒形态较复杂,呈不规则状,长角粒状,板片状,八面体和正方细柱自形晶粒以及凹凸状,浑圆状,麦粒状,角粒状.粒度以细......
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Electron probe microanalysis for revealing occurrence mode of scandium in Bayer red mudNa Zhang1,2,Hong-Xu Li1,2,Hui-Jing Cheng3,Xiao-Ming Liu1,21. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing2. Beijing Key Laboratory of Rare and Precious Metals Green Recycling and Extraction, University of Science and Technology Beijing3. State Key Laboratory......
by vaporization- condensation. Key words: sintering; potassium; sodium; removal; occurrence state; enrichment characteristics 碱金属(K和Na)对高炉炼铁的危害一直是钢铁生产关注的重点.碱金属在高炉内循环富集,会导致高炉结瘤,炉衬被侵蚀,且K和Na沉积在炉料表面会加剧烧结... from the whole industrial process. Sinter pot tests were conducted to study the removal behaviors of K, Na and relevant influencing factors. The enrichment characteristics and occurrence states of K......
J. Cent. South Univ. (2016) 23: 859-868 DOI: 10.1007/s11771-016-3133-x Differential geometric guidance command with finite time convergence using extended state observer MA Yi-wei(麻毅威)1, 2, ZHANG... can guarantee the finite time convergence (FTC) of the line of sight (LOS) rate to zero or its neighborhood against maneuvering targets in three-dimensional (3D) space. The extended state observer (ESO......
