摘要
作者利用浮选菱镁矿和工业氧化铝电熔合成了镁铝尖晶石;利用电熔尖晶石和高纯镁砂制成了高耐火性能的方镁石-尖晶石砖,利用电熔尖晶石、电熔镁砂和鳞片石墨制成了抗氧化性明显优于镁炭砖的尖晶石炭砖。
This paper deals with the process in which a MgO-Al_2O_3 spinel is synthesized with magnesite from flotation and commercial oxide of alumina in a electro-smeltung furnace, and two products of the MgO-Al_2O_3 spinel; periclasite-spinelle bricks of high refraetoriness from the MgO-Al_2O_3 spinel and the sinlered magnesia of high purity and spinet-C briks from the MgO-Al_2O_3 spinel, electro-smelled magnesia and scalelike graphite. The auti-oxidizability of the latter is obvionsly better than MgO-C bricks.
关键词
镁铝尖晶石
耐火材料
尖晶石炭砖
MgO-Al_2O_3 spinel
periclasite-spinelle refractory material
spinel-C bricks
