Dear Mr Azher

The tendency toward coating formation or the coatability of the clinker increases with the amount of liquid. However, more coating does not necessarily mean better coating. Coating refractoriness, texture, and stability are far more important than the amount of coating deposited on the lining. A good example is the thin but stable coating in a white cement kiln, where the silica ratio of the raw mix is more than five and the C4AF is zero.

clinkers with sulphate-alkali ratio lower than 0.83 and low MgO would experience the negative effects of high liquid viscosty.

Best regards

ILA