Processing additive for high-pressure roll press process of forming finish grind cement
An improved high-pressure roll press process for forming finish ground cement is disclosed and is achieved by treating the material entering the roll press with a small amount of a hydroxyl or alkoxyl compound selected from lignin, phenol or monopropylene glycol or mixtures thereof.
Citation
Ferraris, C. F., Gartner, E. M., & Myers, D. (1992). IPC No. U.S.Processing additive for high-pressure roll press process of forming finish grind cement (Patent No. 5203512.)