Smelting characteristics of nickel-chromium-manganese bearing prereduced pellets for the preparation of nickel saving austenite stainless steel master alloys

被引:1
|
作者
Tian, Hongyu [1 ]
Chu, Mansheng [1 ,3 ,4 ]
Pan, Jian [2 ]
Zhu, Deqing [2 ]
Yang, Congcong [2 ]
Tang, Jue [1 ]
机构
[1] Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China
[2] Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Hunan, Peoples R China
[3] Liaoning Low Carbon Steelmaking Technol Engn Res C, Shenyang 110819, Liaoning, Peoples R China
[4] Minist Educ, Engn Res Ctr Frontier Technol Low Carbon Steelmaki, Shenyang 110819, Liaoning, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
Nickel-chromium-manganese bearing; prereduced pellets; Stainless steel master alloys; Smelting characteristic; Optimization of slag types; Phase transformation; KILN-ELECTRIC FURNACE; LIFE-CYCLE ASSESSMENT; MAGNETIC SEPARATION; LATERITE ORE; REDUCTION; IRON; BEHAVIORS; MECHANISM;
D O I
10.1016/j.powtec.2024.119862
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Nickel saving austenite crude stainless steel master alloys were innovatively produced by smelting of nickel-chromium-manganese bearing prereduced pellets in an effective and economical way. The thermodynamics analysis and systematic process mineralogy were also conducted to further reveal the smelting characteristics of prereduced pellets and the related enhanced mechanism. The results showed that the preferable stainless steel master alloys with 66.29% Fe, 4.21% Ni, 17.28% Cr, 6.53% Mn and 4.76% C can be prepared from the nickel-chromium-manganese bearing prereduced pellets with a corresponding recovery of valuable metals more than 95%. Furthermore, during the enhanced smelting process, the optimization of slag types can further realize the phases transformation from high-melting-point enstatite and forsterite to low-melting-point diopside and monticellite to obtain a decreased smelting temperature and viscosity of slag. The smelting duration and the alloy grain included in the smelting slag were both obviously decreased, resulting in an improved smelting performance.
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收藏
页数:14
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