Manufacture of Low Carbon Footprint Magnesia

摘要

The method for producing magnesia comprises the steps of: preparing magnesium carbonate by bringing a CO ₂ -containing effluent into contact with a magnesium-containing material; Calcining the magnesium carbonate to produce CO _{2 by-} products and magnesia; And recycling at least a portion of the CO _{2 by-} product to contact the magnesium-containing material to produce magnesium carbonate. The magnesium-containing material may comprise mining residues such as phyllosilicate or chrysotile mining residues, and the magnesium carbonate produced may comprise precipitated nesquehonite which is calcined to produce magnesia, . / RTI