Research progress on recycling of used MgO-C bricks

doi:10.3969/j.issn.1001-1935.2024.06.016

Abstract

Abstract: 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 Al₄C₃ 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.

Key words: used MgO-C bricks, recycling, carbon, false particles

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Al₄C₃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。

关键词: 用后MgO-C砖, 再生利用, 炭素, 假颗粒

CLC Number:

TQ175

徐晗, 陈晓雨, 徐恩霞. 用后MgO-C砖再生利用研究进展[J]. 耐火材料, 2024, 58(6): 548-552.

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