Recent research progress on the direct carbon capture of steel slag to prepare building materials  

作　　者：Zihe Gao Qing Zhao Mengjie Tao Zengrui Wang Chengjun Liu Henrik Saxén Ron Zevenhoven 

机构地区：[1]Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education),Northeastern University,Shenyang 110819,China [2]School of Metallurgy,Northeastern University,Shenyang 110819,China [3]National Frontiers Science Center for Industrial Intelligence and Systems Optimization,Northeastern University,Shenyang 110819,China [4]Key Laboratory of Data Analytics and Optimization for Smart Industry(Ministry of Education),Northeastern University,Shenyang 110819,China [5]Process and Systems Engineering Laboratory,Åbo Akademi University,Turku 20500,Finland

出　　处：《Green and Smart Mining Engineering》2024年第4期387-395,共9页绿色与智能矿业工程(英文)

基　　金：National Natural Science Foundation of China(Nos.52374327 and 52074078);National Key R&D Program of China(No.2021YFC2901200);Applied Fundamental Research Program of Liaoning Province(No.2023JH2/101600002);Shenyang Young Middle-Aged Scientific and Technological Innovation Talent Support Program(No.RC220491);Liaoning Province Steel Industry–University–Research Innovation Alliance Cooperation Project of Bensteel Group(No.KJBLM202202);Fundamental Research Funds for the Central Universities(Nos.N2201023 and N2325009);Key Scientific Research Project of Liaoning Provincial Department of Education(No.2024JYTZD-03);111 Project(No.B16009).

摘　　要：Driven by the“dual carbon”and“green metallurgy”targets,the steel industry feels the pressure of carbon emission reduction and steel slag resource utilization.Since the year 2000,accelerated carbonation technology using basic oxides in steel slag to store CO_(2)has been widely investigated worldwide.In this study,the chemical and mineral compositions and the main physical properties of different steel slags are summarized to achieve the dual purpose of CO_(2)mineralization and steel slag increment.This paper also summarizes the latest advancements in the direct carbonation of steel slag.Following the carbonation process,residual free calcium oxide and magnesium oxide can be further carbonated to aid in the preparation of building materials.The direct carbonation method improves the use of steel slag as an aggregate and in cementitious applications,exhibiting effective performance in steel-slag-based composites.Given the limited extent of steel slag carbonation and the modest utilization of available products,this paper explores the current research on carbonated steel slag for building material fabrication and discusses the variety of green building materials.

关 键 词：Dual carbon Green metallurgy Steel slag CARBONATION Building materials 

分 类 号：TG1[金属学及工艺—金属学]