Crystallization Behavior of High Purity Fused Magnesia  

作　　者：LI Xuejun GAO Zhenxin YAN Guanghui ZHANG Wei FU Qiuhua 

机构地区：[1]Puyang Refractories Group Co.,Ltd.,Puyang 457100,China

出　　处：《China's Refractories》2017年第2期1-6,共6页中国耐火材料（英文版）

摘　　要：The chemical composition and microstructure of Tibetan microcrystalline magnesite were studied by means of XRF,XRD and FESEM. It is found that the microcrystalline magnesite has uniformly distributed grains,mostly in the range of 2-4 μm,and the MgO content is47. 80%. In fused magnesia,the druses are colorless transparent periclase megacrysts without impurity,while the crust sand is white,with a high MgO content up to97%-99%. The periclase crystals are big,appearing as faced and step-growth morphology. Massive secondary long columnar periclase is crystallized.The chemical composition and microstructure of Tibetan microcrystalline magnesite were studied by means of XRF,XRD and FESEM. It is found that the microcrystalline magnesite has uniformly distributed grains,mostly in the range of 2-4 μm,and the MgO content is47. 80%. In fused magnesia,the druses are colorless transparent periclase megacrysts without impurity,while the crust sand is white,with a high MgO content up to97%-99%. The periclase crystals are big,appearing as faced and step-growth morphology. Massive secondary long columnar periclase is crystallized.

关 键 词：microcrystalline magnesite fused magne-sia crust sand long columnar periclase crystals 

分 类 号：TD912[矿业工程—选矿] TQ132.2[化学工程—无机化工]