工程科学学报2016，Vol.38Issue(z1)：146-154,9.DOI:10.13374/j.issn2095-9389.2016.s1.025
CO2在转炉冶炼中低碳铬铁过程中的探索性应用
Exploratory application of CO2 in M--LCFeCr production with converter process
摘要
Abstract
A New process for refining medium-low carbon ferrochromium ( M- LCFeCr ) from high carbon ferrochromium ( HCFeCr) through converter was discussed. This technology is similar to argon oxygen decarburization process ( AOD) with the differ-ence of carbon dioxide being introduced as mixing gas. The results show that, it is feasible to use CO2 for decarburization of high car-bon and medium carbon ferrochrome. Better decarburization effect is obtained by using high volume ratio CO2 at the initial stage of pro-ducing MCFeCr through HCFeCr, while at the last stage of refining, viz. low carbon content melt, higher O2 concentration is better for carbon removal. The optimal gas composition for decarburization is 25%CO2 +75%O2 ( volume ratio) in the current experiments. CO2 introduction is benefit for enhancing the yield of chromium, and higher CO2 leads to better Cr retention. It has positive effect of CO2 on desulfurization of HCFeCr melt.关键词
二氧化碳/转炉/中低碳铬铁/脱碳/保铬Key words
carbon dioxide/converter/medium-low carbon ferrochromium/decarburization/chromium retention分类
矿业与冶金引用本文复制引用
王海娟,郁鸿超,储少军,吴殿臣,许中波..CO2在转炉冶炼中低碳铬铁过程中的探索性应用[J].工程科学学报,2016,38(z1):146-154,9.基金项目
教育部博士学科点专项科研基金资助项目(20120006120018) （20120006120018）
钢铁冶金新技术国家重点实验室资助项目(41603005) （41603005）
