不锈钢粉尘和红土镍矿碳热还原新工艺多目标协同优化  

Multiobjective collaborative optimization of novel carbothermal reduction process of stainless steel dust and laterite nickel ore

作　　者：刘培军 柳政根 储满生[4] 闫瑞军[1,2,3] 李峰 唐珏 Pei-jun LIU;Zheng-gen LIU;Man-sheng CHU;Rui-jun YAN;Feng LI;Jue TANG(School of Metallurgy,Northeastern University,Shenyang 110819,China;Institute for Frontier Technologies of Low-carbon Steelmaking,Northeastern University,Shenyang 110819,China;Liaoning Province Engineering Research Center for Technologies of Low-Carbon Steelmaking,Northeastern University,Shenyang 110819,China;State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学冶金学院,沈阳110819 [2]东北大学低碳钢铁前沿技术研究院,沈阳110819 [3]东北大学辽宁省低碳钢铁前沿技术工程研究中心,沈阳110819 [4]东北大学轧制与连轧自动化国家重点实验室,沈阳110819

出　　处：《Transactions of Nonferrous Metals Society of China》2023年第6期1919-1931,共13页中国有色金属学报（英文版）

基　　金：the National Natural Science Foundation of China(No.51974077);Xingliao Talent Plan,China(No.XLYC1902118)。

摘　　要：采用基于响应面法的中心复合设计,通过碳热还原实现不锈钢粉尘和红土镍矿中Fe、Cr和Ni金属回收的多目标协同优化,获得高金属回收率和高品位Fe-Cr-Ni-C合金颗粒。结果表明,红土镍矿的配入量和还原温度对金属回收率有显著影响,还原产物中金属Fe、Cr和Ni的回收率之间存在显著的交互作用。通过模型优化得到的最优工艺参数为:红土镍矿配入量5.47%、还原温度1428.02℃、还原时间23.10 min和碳氧比(FC/O)0.85。该模型的Fe、Cr和Ni的回收率预测结果分别为93.15%、91.63%和92.70%。By using the central composite design based on the response surface method,the multiobjective collaborative optimization of Fe,Cr and Ni metal recovery from stainless steel dust and laterite nickel ore was achieved through carbothermal reduction,and a high metal recovery rate and high-grade Fe−Cr−Ni−C alloy particles were obtained.The addition of laterite nickel ore and reduction temperature exert significant effects on the metal recovery,and a significant interaction is observed among the recoveries of the metals Fe,Cr and Ni in the reduction products.The optimal process parameters obtained through the optimization of the model are listed as follows:the amount of added laterite nickel ore is 5.47%,the reduction temperature is 1428.02°C,the reduction time is 23.10 min,and the carbon oxygen ratio(FC/O)is 0.85.The predicted results for Fe,Cr and Ni recovery using the model are 93.15%,91.63%and 92.70%,respectively.

关 键 词：不锈钢粉尘 红土镍矿 金属回收 响应面法 Fe-Cr-Ni-C合金颗粒 

分 类 号：X75[环境科学与工程—环境工程] TF803[冶金工程—有色金属冶金] TF56