By Tao Jiang,Jiann-Yang Hwang,Patrick Masset, et al.John Wiley & Sons, Inc.|Wiley||Wiley-TMSAdult NonfictionTechnologyLanguage(s): EnglishOn sale date: 02.08.2012Street date: 09.05.2012Preview

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Reduced splashing and therefore reduced cleaning effort due to the low tapping position. • Reduced oxygen pick-up due to the small distance between tap hole and launder. • Higher anode quality due to low oxygen content and slag free casting. • Immediate emergency stop is possible by simple push-button operation.

Magnetic parts were added to the metallic phase to re-melt. General flowchart of the process is shown in Figure 2. The homogenized metal buttons were characterized using XRF, AAS, EPMA techniques. The most efficient experiment in recovery of Ni and Co was P4 mixture with 30 g reductant and 100 g ore. 19 Figure 2. General Flowchart of the Process In the second experimental set, effect of process duration was carried out. P4 mixture was smelted in different process durations from 15 min. to 35 minutes.

The limiting factor for the lifetime of the installed refractories is the oxygen lancing in cases where the copper freezes in the tap hole. With the help of the above described nitrogen purging via the lower plate the tap hole can be kept open or during sporadic heats leaves only a thin layer to be lanced. Thus the wear of the inner nozzle is significantly reduced and a life time of more than six weeks was obtained. The plates show a lifetime of up to 16 heats and the well block hasn't to be changed during the two years life time of the anode furnace.

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