Method for making cement using aragonite

Compositions: coating or plastic – Coating or plastic compositions – Proteinaceous material containing

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C04B 738

Patent

active

040544648

ABSTRACT:
An improved process for making cement wherein aragonite, a natural orthorombic crystalline form of calcium carbonate, is employed in a substantially dry, naturally recovered, unprocessed state as the calcium carbonate constituent. The raw kiln feed of the aragonite and argillaceous materials can be introduced into the kiln together and/or separately to produce the desired raw kiln clinker feed within the kiln. The argillaceous material employed can be in a substantially dry state or can be present as an aqueous slurry.

REFERENCES:
patent: 3686372 (1972-08-01), Hiatt et al.

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