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在实验室条件下,对含TiO2的碱性炼钢渣发泡性能及影响因素进行了研究。结果表明:TiO2碱性渣系具有良好的发泡性能,且在高温还原条件下泡沫稳定。还探讨了TiO2对炉渣物性及对渣的发泡性能的影响。 相似文献
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本文研究了钢渣中的锶和钡同时测定的原子吸收法。确定了同时测定的实验条件、样品分解方法,获得了满意的精密度和准确度。 相似文献
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为了解决SPHC生产比例高时转炉炉衬侵蚀严重的问题,使用了轻烧氧化镁球代替白云石,优化了转炉造渣制度和供氧制度,合理控制轻烧氧化镁球在冶炼过程中的加入量以及加入时机,结果熔剂消耗降低了31.2 kg/t钢,钢铁料消耗降低了4.99 kg/t,炉衬侵蚀情况得到了有效控制。 相似文献
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Activity of Iron Oxide in Steelmaking Slag 总被引:1,自引:0,他引:1
Somnath Basu Ashok Kumar Lahiri Seshadri Seetharaman 《Metallurgical and Materials Transactions B》2008,39(3):447-456
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Somnath Basu Ashok Kumar Lahiri Seshadri Seetharaman 《Metallurgical and Materials Transactions B》2010,41(2):414-419
Refining reactions in steelmaking primarily involve oxidation of impurity element(s). The oxidation potential of the slag and the activity of oxygen in the metal (hO) are the major factors controlling these chemical reactions. In turn, the oxidation potential of the slag is influenced strongly by the equilibrium distribution of oxygen between ferrous and ferric oxides. We recently investigated the activity coefficient of FeO in steelmaking slag and the effect of chemical composition thereon. This work is focused on estimation of the activity coefficient of Fe2O3. 相似文献
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Cheremisina Elizaveta Schenk Johannes Nocke Ludwig Paul Alexander Wimmer Gerald 《Metallurgical and Materials Transactions B》2019,50(3):1269-1276
Metallurgical and Materials Transactions B - The kinetics of dolime dissolution containing 20 and 50 pct of magnesium oxide in steelmaking slags has been studied in a high-temperature... 相似文献
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宝钢转炉少渣炼钢的实践 总被引:1,自引:0,他引:1
叙述了宝钢300t转炉少渣炼钢工业性试验及少渣条件下锰矿还原的试验结果。试验结果表明:转炉生石灰单耗达到11.3kg/t,轻烧白云石单耗达到6.3kg/t,锰矿加入量大于8kg/t,平均锰回收率达到50%以上。此外,分析了转炉少渣吹炼的冶金效果和工艺制度。 相似文献
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In order to recycle the phosphorus from P-bearing steelmaking slag, the influences of magnetic field inten- sities, slag particle sizes and slag compositions were investigated by magnetic separation experiments. SiO2, A1203 and TiO2 melting modification of converter slag was made respectively and phosphorus-rich phase was extracted by magnetic separation. The results show that MgO, MnO, Na2 0 and CaF2 have little effect on the phosphorus recovery, whereas the addition of SiO2, Al2 03, and TiO2 has great effect on phosphorus enrichment in slag and magnetic separation. With adding the reagent of SiO2 Al2 03 and TiO2, recycled non-magnetic substances are increased obviously and P2 05 content in nowmagnetic substances and phosphorus recovery rate are also increased. The phosphorus recovery rates of modified slag No. 8 (SiO2 modification), slag No. 10 (AI2 03 modification) and slag No. 11 (TiO2 modification) are 84.75 %, 82.16 % and 74.46 %, respectively. Then, most of phosphorus was recycled. 相似文献
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