Importance

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Abstract

A process is disclosed for decarbonation of limestone, dolomite or other carbonated materials and hydration of the decarbonated limestone, dolomite or other carbonated materials. The process may include: heating particles of carbonated materials in a reactor of a first circuit; conveying the particles of carbonated materials by a first entraining gas; transferring the decarbonated particles to a second circuit, in which a second gas circulates, the circuit comprising a hydration section; hydrating the decarbonated particles; and transferring at least a portion of the heat generated by the hydration of the decarbonated particles to the second gas being substantially free of carbon dioxide; The first and second circuits are separated by first selective separation means allowing the passage of solids while substantially preventing the passage of the gases.

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First Claim