高炉渣和低碳铬铁合金渣协同制备微晶玻璃  

Cooperative Preparation of Glass-ceramics by Blast Furnace Slag and Low-carbon Chromium Iron Alloy Slag

作　　者：王一帆 王艺慈[1] 王瑞鑫 赵凤光[1] 柴轶凡[1] 罗果萍[1] WANG Yifan;WANG Yici;WANG Ruixin;ZHAO Fengguang;CHAI Yifan;LUO Guoping(School of Materials and Metallurgy,Inner Mongolia University of Science and Technology,Baotou 014010,Inner Mongolia,China)

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《矿产综合利用》2024年第6期15-20,26,共7页Multipurpose Utilization of Mineral Resources

基　　金：内蒙古科技成果转化专项项目(2019CG073);“固废资源化”国家重点研发计划项目(2020YFC1909105);白云鄂博稀土矿产资源基地固废循环利用集成示范(2021ZD0016)。

摘　　要：这是一篇矿物材料领域的论文。为对大宗工业固废进行高值化利用和无害化处理,以包钢高炉渣、低碳铬铁合金渣和石英砂为原料熔融法制备CaO-MgO-Al_(2)O_(3)-SiO_(2)-Cr_(2)O_(3)体系微晶玻璃。并通过差热分析(DSC)、X射线衍射(XRD)、扫描电子显微镜(SEM)等分析手段探究较优原料配比。结果表明:当高炉渣、低碳铬铁合金渣、石英砂质量比例为60∶40∶31时,制得微晶玻璃的晶相为透辉石和绿辉石,此时微晶玻璃性能较优,抗折强度达到126.25 MPa,晶化度达到89.19%,显微结构较理想。较优原料配比条件下制备的微晶玻璃满足国家A类装饰装修材料IRa≤1.0和Iγ≤1.3的要求,且微晶玻璃中重金属铬的浸出浓度符合国家标准,表明采用高炉渣和低碳铬铁合金渣制备微晶玻璃具有可行性。This is an article in the field of mineral materials.In order to make high-value utilization and harmless treatment of bulk industrial solid waste,CaO-MgO-Al_(2)O_(3)-SiO_(2)-Cr_(2)O_(3) system glass-ceramics were prepared by melting method with Baotou Steel blast furnace slag,low-carbon chromium iron alloy slag and quartz sand as the raw materials.The optimum ratio of raw materials was explored by means of differential thermal analysis(DSC),X-ray diffraction(XRD)and scanning electron microscopy(SEM).The results showed that when the mass ratio of blast furnace slag,low-carbon chromium iron alloy slag and quartz sand was 60∶40∶31,the crystalline phases of glass-ceramics were diopside and omphacite.At this time,the performance of glass-ceramics was the best,the flexural strength reached 126.25 MPa,the crystallinity reached 89.19%,and the microstructure was ideal.The glass-ceramics prepared under the optimal raw material ratio met the requirements for national class A decoration materials,i.e.IRa≤1.0 and Iγ≤1.3,and the leaching concentration of heavy metal chromium in the glass-ceramics met the national standard,indicating that it is feasible to prepare glass-ceramics with blast furnace slag and low-carbon chromium iron alloy slag.

关 键 词：矿物材料 高炉渣 低碳铬铁合金渣 微晶玻璃 较优配比 

分 类 号：TD989[矿业工程—选矿] TQ171[化学工程—玻璃工业]