A process for converting a copper sulphide matte and/or a copper sulphide concentrate to blister copper is described which comprises the steps of adding the matte and/or concentrate together with a suitable flux to an agitated molten bath containing a molten slag phase and a molten metal phase; injecting by means of a submerged lance an oxidizing gas capable of reacting with the matte or concentrate to form a low sulphur blister copper phase, slag and sulphur dioxide; controlling the injection of the oxidizing gas such that a substantial portion of the gas contacts the blister copper phase; and separating blister copper from the bath. It is possible to obtain an amount of sulphur in the blister copper which is within a factor of two of the equilibrium value for a given percentage of copper in the slag.
申请公布号
WO9600802(A1)
申请公布日期
1996.01.11
申请号
WO1995AU00379
申请日期
1995.06.27
申请人
MOUNT ISA MINES LIMITED;COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH OR;EDWARDS, JAMES, SCOTT;JAHANSHAHI, SHAFI