It largely depends on how much Ladle metallurgy you do and how selective you are with what goes in your furnace. Copper (from car wiring harnesses etc) is much harder to remove from the melt vs from the shredder conveyer, but a lot of contaminates can be removed with additional processing. But a common solution is DRI briquets or pig iron added to dilute contamination to an acceptable level.
It largely depends on how much Ladle metallurgy you do and how selective you are with what goes in your furnace. Copper (from car wiring harnesses etc) is much harder to remove from the melt vs from the shredder conveyer, but a lot of contaminates can be removed with additional processing. But a common solution is DRI briquets or pig iron added to dilute contamination to an acceptable level.
It largely depends on how much Ladle metallurgy you do and how selective you are with what goes in your furnace. Copper (from car wiring harnesses etc) is much harder to remove from the melt vs from the shredder conveyer, but a lot of contaminates can be removed with additional processing. But a common solution is DRI briquets or pig iron added to dilute contamination to an acceptable level.