用后MgO-C砖再生利用研究进展  

Research progress on recycling of used MgO-C bricks

作　　者：徐晗 陈晓雨 徐恩霞[3] Xu Han;Chen Xiaoyu;Xu Enxia(Henan Institute of Economics and Trade,Xi’an 710055,Shaanxi,China;不详)

机构地区：[1]河南经贸职业学院,河南郑州450064 [2]郑州航空工业管理学院材料学院,河南郑州450046 [3]郑州大学河南省高温功能材料重点实验室,河南郑州450052

出　　处：《耐火材料》2024年第6期548-552,共5页Refractories

基　　金：2024年郑州航院教育教学改革研究与实践项目(zhjy24-141)。

摘　　要：综述了近年来国内外关于用后MgO-C砖中各成分,如氧化镁、石墨、结合剂和抗氧化剂等对再生MgO-C砖的影响;并探讨了MgO-C砖再生的处理方式,即热处理除碳与直接利用;指出用后MgO-C砖再生中Al_(4)C_(3)的水化和假颗粒等关键问题,并对用后MgO-C砖的再利用提出了一些建议。The effects of various components in used MgO-C bricks,such as magnesia,graphite,binders and antioxidants,on the regeneration of MgO-C bricks in recent years were reviewed.The treatment methods of MgO-C bricks recycling,namely directly using and carbon removal by heat treatment,were discussed.The key problems such as Al_4C_(3) hydration and false particles in the recycling of used MgO-C bricks were pointed out.Some suggestions for recycling used MgO-C bricks were put forward.

关 键 词：用后MgO-C砖 再生利用 炭素 假颗粒 

分 类 号：TQ175[化学工程—硅酸盐工业]