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.
Processing additive for high-pressure roll press process of forming finish grind cement
Ferraris, CF., Gartner, EM., & Myers, D. (1992). IPC No. U.S. Processing additive for high-pressure roll press process of forming finish grind cement. (U.S. Patent No. 5203512).
Abstract
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