METHOD FOR CARBONATING INDUSTRIAL AND URBAN WASTE AND REGENERATING REAGENTS

摘要

The present invention describes a cyclic method which efficiently integrates CO₂ capture and the conversion thereof into carbonates, with low energy consumption. The method uses industrial and urban waste rich in cations of metals selected from the group M, which comprises Ca²⁺, Mg²⁺, Ba²⁺, Sr²⁺, Pb²⁺, Fe²⁺ and Cd²⁺, to produce carbonates of the respective cations and regenerate the reagents. The main features of this invention are the complete regeneration of the reagents, the efficient precipitation of carbonates without requiring pH adjustment, and the production of high-purity carbonates.