作者：ZHANG Ling1XI Jianfei1YANG Yuxuan1YUAN Qichen2
作者單位：1.University of Science and Technology Liaoning2.Anshan Anli Refractory Co., Ltd.
會議錄名稱：第九屆國際耐火材料學術會議
出版年：2024-10-15
起頁：338-344
止頁：
總頁數：0
館藏號：
分類號：TQ175.1;TD952;TD923
語種：英文
會議名稱：第九屆國際耐火材料學術會議
會議地點：中國四川成都
會議時間：2024-10-15
會議主辦者：中國金屬學會耐火材料學會
關鍵詞：magnesite;magnesia;bonding phase;analog calculation;
內容簡介Magnesite is one of China's advantageous mineral resources. The development of efficient utilization methods for crushed and low-grade magnesite ores has led to the advent of the magnesite flotation process. Through flotation, the MgO content in magnesite concentrate is significantly increased while impurities, especially silica（SiO2）, are reduced.However, problems have also emerged: both electric fused magnesia and sintered magnesia products made from flotation concentrate powder exhibit reduced service life. This study analyzes the composition and structural characteristics of electric fused magnesia and sintered magnesia made from both raw ore and concentrate powder. It identifies that the reduced service life is due to the volume effect from the polymorphic transformation of dicalcium silicate（C2S）in the binding phase of periclase（MgO）.
所需耐材幣：0
