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outotec direct blister copper smelter plant process

Outotec Direct Blister Copper Smelter Plant Process

direct-to-blister flash smelter for copper project m i n,the smelter design capacity is 1,000 ktpa of concentrate feed, producing in excess of 500 ktpa copper in the form of blister and anode. concentrate is first dried in a steam dryer and sent to the dbf where it is smelted in the reaction shaft with oxygen-enriched air to produce molten slag containing oxide minerals, blister copper and sulphur-dioxide (so 2 ) rich off-gas..situ desulfurization scrubbing process for,a novel process for refining high or low impurity blister copper containing s, as, sb, pb, ni, bi, se, and/or te to anode quality by means of a solution containing sulphates and alkali oxides is provided. more specifically, the process comprises the steps of (1) injecting air/o 2 gas mixtures in the presence of an alkali source, over a period of time sufficient to complete the sulphur removal.

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