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三菱工艺的吹炼炉(C炉)提供了从熔融冰铜中连续产出粗铜的机会。连续吹炼的基础是控制CaO-FeO_x-Cu_2O系铁酸钙炉渣中磁性氧化铁行为的可靠技术。C炉作业控制的最新进展包括反映次生氧化物对磁性氧化铁行为影响的炉渣控制。尽管以前的研究集中于磁性氧化铁的行为,但是,硫对C炉的操作也有影响,因为硫对于避免硫酸钙从铁酸钙炉渣中沉淀出来以及冰铜与粗铜的分离有实际的重要影响。本文定量描述了硫酸钙的形成以及冰铜分离时硫在C炉中的行为,并且讨论了C炉操作的更佳控制。
Mitsubishi Process Furnaces (C furnaces) provide the opportunity to continuously produce blister copper from molten matte. The basis of continuous blowing is a reliable technique for controlling the behavior of magnetic iron oxide in CaO-FeOx-Cu20CaO slag. Recent developments in furnace C operation control include slag control that reflects the effect of secondary oxides on magnetic iron oxide behavior. Although previous studies have focused on the behavior of magnetic iron oxide, sulfur also has an impact on the operation of the C-C furnace as sulfur has a real important influence on avoiding the precipitation of calcium sulphate from calcium ferrite slag and on the separation of matte and blister copper . This paper quantitatively describes the formation of calcium sulphate and the behavior of sulfur in C furnaces during the separation of matte and copper and discusses the better control of C furnace operation.