TRAVERTINE TECHNOLOGIES, INC., 2708-1505 NEW AWARD DE-FOA-0002708 (SBIR/STTR) PROJECT TITLE: EX SITU TAILINGS LEACHING AND LATERITIZATION WITH ELECTROLYTIC ACID RECYCLING FOR CRITICAL CONCENTRATION AND MINERAL CARBON SEQUESTRATION OUR CONCEPT IMPLEMENTS A PILOT OF A TRANSFORMATIONAL PROCESS THAT COMBINES STRONG ACID-ENHANCED WEATHERING AND CRITICAL METAL CONCENTRATION AND RECOVERY IN ULTRAMAFIC MINE TAILINGS (HAMILTON ET AL., 2020) WITH A BENCH-SCALE VERIFIED PROCESS FOR ELECTROLYTIC ACID AND BASE PRODUCTION FOR SULFURIC ACID RECYCLING WITH MINERAL CARBONATION, USING CARBON DIOXIDE FROM AIR.