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高比例褐铁矿烧结技术研究金俊1,武轶1,江吉惠1(1.安徽省马鞍山市马鞍山钢铁股份有限公司技术中心)摘 要:通过对烧结配矿优选试验,不同R,SiO2和MgO含量试验,不同的石灰石粉粒度试验结果的研究分析,提出了在高配比褐铁矿条件下适宜的配矿方案及合理的工艺参数.试验结果表明:石灰石粉粒度对烧结指标的影响较大.减少石灰石粉中<1 mm部分的比例,可使烧结生产率显著提高,烧结矿转鼓强度改善,固体燃耗降低.关键词:褐铁矿; 烧结; 配矿; 石灰石......
nucleation mechanism. Key words: AZ31 magnesium alloy; grain refinement; limestone ore; microstructure; ultrasonic treatment 1 Introduction Mg-Al alloys should be the most commercially used, because...Trans. Nonferrous Met. Soc. China 28(2018) 1103-1113 Effect of limestone ores on grain refinement of as-cast commercial AZ31 magnesium alloys Xuan LIU1, Si-qi YIN2, Zhi-qiang ZHANG2, Qi-chi LE2, Ji......
Evolvement of permeability of ore granular media during heap leaching based on image analysis YANG Bao-hua(杨保华)1, 2, WU Ai-xiang(吴爱祥)3, JIANG Huai-chun(江怀春)4, CHEN Xue-song(陈学松)1 1. School...; Abstract: The column leaching experiment of ore granular media was carried out with the home-made multi-functional experimental apparatus and the pore structure......
J. Cent. South Univ. Technol. (2008) 15(s1): 475-478 DOI: 10.1007/s11771-008-403-2 Experimental study on rheological deformation and stress properties of limestone TANG Ming-ming (唐明明), WANG Zhi... indicate that the strain change always lags behind the increase of stress, and the long-term strength of the limestone is about 80.6% of the stress at the volumetric strain reversal which is obtained......
J. Cent. South Univ. Technol. (2007)04-0568-07 DOI: 10.1007/s11771-007-0109-x Bainiuchang super-large silver-polymetallic ore deposit related to granitic magmatism in Mengzi, Yunnan LIU Ji-shun(刘继... and Metallurgy Co. Ltd., Mengzi County, Yunnan 661100, China) ________________________________________________________________________________ Abstract: Bainiuchang silver-polymetallic ore deposit......
J. Cent. South Univ. (2017) 24: 2932-2939 DOI: https://doi.org/10.1007/s11771-017-3707-2 Hydration properties and thermal analysis of cement-based materials containing limestone powder ZHOU Wei(周伟)1... properties of cement-based materials containing various proportions of limestone powder as a partial replacement for ordinary Portland cement, were investigated and reported. Both compressive......
, the chromite ore is processed by roasting with sodium carbonate at 1 200 ℃ in a rotary kiln with the addition of limestone and dolomite, yielding only 75% of chromium extraction[2]. Further... Effect of mechanical activation on alkali leaching of chromite ore ZHANG Yang(张 洋)1, 2, ZHENG Shi-li(郑诗礼)1, DU Hao(杜 浩)1, XU Hong-bin(徐红彬)1, ZHANG Yi(张 懿)1 1. National Engineering Laboratory......
J. Cent. South Univ. Technol. (2010) 17: 732-737 DOI: 10.1007/s11771-010-0548-7 Influence of flux additives on iron ore oxidized pellets FAN Xiao-hui(范晓慧), GAN Min(甘敏), JIANG Tao(姜涛), YUAN Li...; Abstract: Six additives, i.e., limestone, lime, magnesite, magnesia, dolomite and light-burned-dolomite, were added......
J. Cent. South Univ. Technol. (2011) 18: 1646-1653 DOI: 10.1007/s11771-011-0884-2 Geochemistry of rare earth elements in groundwater from deep seated limestone aquifer in Renlou Coal Mine, Anhui...) concentrations were measured by ICP-MS for groundwater collected from deep seated Taiyuan Fm limestone aquifer (from -400 to -530 m) in Renlou Coal Mine, northern Anhui Province, China. It can......
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