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不锈钢冶炼渣熔融还原及毒性浸出实验研究毛佳君1,陈文彬1,王强1,洪新1(1.上海市上海大学钢铁冶金重点实验室)摘 要:通过半工业化试验证实了可以通过铁浴熔融还原工艺快速回收不锈钢冶炼渣中的铬.采用X射线衍射分析,荧光分析和化学分析方法,得到不锈钢渣的初始成分及物相,熔融还原处理后熔渣中Cr最优收得率达到98.6%,渣中残铬量最低可降至0.063%.并根据相关标准进行了毒性浸出试验,确认了不锈钢冶炼渣经过处理,浸出毒性从0.62 mg/L降低至0.017 86 mg/L,远远低于一般废弃物的标准.......
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, 39(8): 977-986. [16] 刘文均, 郑荣才. 硫酸盐热化学还原反应与花垣铅锌矿床[J]. 中国科学D辑, 2000, 30(5): 456-464. LIU Wen-jun, ZHENG Rong-cai. Thermochemical sulphate reduction and Huayuan Pb-Zn deposit[J] Science in China(Series...]. Beijing: China University of Geosciences(Beijing), 2013: 60-120. [34] MACHEL H G. Bacterial and thermochemical sulfate reduction in diagenetic settings-Old and new insights[J]. Sedimentary Geology, 2001......
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J. Cent. South Univ. Technol. (2009) 16: 0513-0519 DOI: 10.1007/s11771-009-0085-4 Selective catalytic reduction of NO with NH3 over sol-gel-derived CuO-CeO2-MnOx/γ-Al2O3 catalysts ZHAO Qing-sen... CuO-CeO2-MnOx/γ-Al2O3 catalysts were synthesized by the sol-gel method. The performance of the CuO-CeO2-MnOx/γ-Al2O3 catalysts for the selective catalytic reduction (SCR) was studied in a fixed bed......
ores sintering; biomass fuel; pollutants reduction 褐铁矿在世界范围内的分布较广泛,其总储量超过100亿t.随着我国钢铁工业的发展,我国对铁矿石的需求量越来越大.褐铁矿由于其储量大,价格低,配加到烧结料中能稳定钢铁企业的原料结构,降低生产成本[1-2],因此,有必要对褐铁矿的烧结性能进行研究.国内外针对褐铁矿进行了相关研究,发现褐铁矿具有孔隙率大... Xiaohui, CHEN Xuling, et al. Reduction of pollutant emission in iron ore sintering process by applying biomass fuels[J]. Iron and Steel Institute International, 2012, 52(9): 1580-1584. [14] Lovel R......
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J. Cent. South Univ. (2016) 23: 1015-1022 DOI: 10.1007/s11771-016-3150-9 Reduction of Panzhihua titanium-bearing oxidized pellets by CO-N2-H2 gas ZHANG Jian-liang(张建良), ZHENG Chang-le(郑常乐), TANG Yun... Berlin Heidelberg 2016 Abstract: The effect of H2 gas content on the reduction of Panzhihua titanomagnetite concentrate pellets by carbon monoxide was investigated by isothermal reduction experiment......
J. Cent. South Univ. Technol. (2011) 18: 690-696 DOI: 10.1007/s11771-011-0749-8 Optimal design of auxiliary-teeth to solve circulation current reduction of permanent magnet linear synchronous motor... of the PMLSM and copper loss caused by the circulating current. Key words: permanent magnet linear synchronous motor; auxiliary-teeth; circulation current; end effect; thrust reduction 1 Introduction......