Copper (Cu) impact on clinker or cement quality?
have you any experience for copper good or bad impact in the clinker or cement so can you please share with us.?
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re Copper (Cu) impact on clinker or cement quality?
Copper can have both beneficial and detrimental effects on clinker quality.
Up to about 1% copper (as CuO) improves the burnability of the raw mix. It decreases the free CaO content of the clinker, encourages the formation of C3S and lowers the clinkering temperature by about 50oC. However under reducing conditions the Cu2O formed inhibits both C3S and C2S formation.
I have used copper slag, containing ~7000ppm Cu, as an iron corrective without any issues concerning clinker production or quality.