铬矿铁浴碳还原制备高铬不锈钢母液的试验研究

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英文篇名：Experimental Study on Prepartion of High Chromium Stainless Steel Mother Liquid by Reduction of Chrome Ore in Iron Bath with Carbon 作者：徐振亚 ; 张华 ; 李秋菊 ; 洪新 英文作者：Xu Zhenya;Zhang Hua;Li Qiuju;Hong Xing;State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy& School of Materials Science and Engineering,Shanghai University; 关键词：铁浴 ; 碳还原 ; 铬矿 ; 不锈钢母液 英文关键词：iron bath;;carbon reduction;;chromium ore;;stainless steel mother liquid 中文刊名：SHJI 英文刊名：Shanghai Metals 机构：省部共建高品质特殊钢冶金与制备国家重点试验室上海市钢铁冶金新技术开发应用重点试验室和上海大学材料科学与工程学院; 出版日期：2018-01-31 出版单位：上海金属 年：2018 期：v.40;No.223 语种：中文; 页：SHJI201801011 页数：4 CN：01 ISSN：31-1558/TF 分类号：60-63

摘要

针对铬矿在较高铬含量的铁浴中采用碳还原时的还原率进行研究。主要考察了铁水中铬含量、还原时间、还原温度和渣碱度等因素对铬还原率的影响。结果表明,随着铁水中铬含量的增加,铬还原率呈下降趋势,在铁水中铬质量分数达到30%后,铬还原率急剧下降。还原反应进行到75 min后逐渐趋于平衡,还原温度越高,越有利于还原反应的进行,渣碱度R=1.1时还原效果最好。
        The reduction rate of chromium ore through carbon was studied in iron bath with high chromium content,factors such as chromium content in iron bath,reduction time,reduction temperature and slag basicity on reduction rate were mainly investigated.The experimental results showed that the reduction rate decreased with the increase of chromium content in bath.The reduction rate decreased sharply as chromium content in iron bath was over 30% by mass.When the reduction time was 75 min,the reaction approached equilibrium.The higher the reduction temperature,the more easily the reducing reacti on went on.The best reduction effect was obtained as slag basicity was 1.1.

引文

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