Travertine Technologies, based in Boulder, Colorado, is implementing a groundbreaking demonstration plant that aims to transform gypsum, a traditionally challenging waste material, into valuable resources at a metal-refining site near Rochester, New York. By utilizing a unique process that integrates salt-splitting electrolysis, caustic direct-air capture, and mineralization, the plant will convert gypsum and captured carbon dioxide into sulfuric acid, green hydrogen, and calcium carbonate. The project, conducted in collaboration with Sabin Metal Corp., presents an innovative solution for managing gypsum waste, derived from a historical mine on the site, by turning it into useful products. Owen Cadwalader, the COO of Travertine, highlights the diverse product outcomes of the process, including sulfuric acid for metal recycling and refining, green hydrogen as a potential fuel source, and calcium carbonate as a carbon sink. The electrolyzer unit serves as the core component, splitting sulfate salt into sulfuric acid and caustic, with the option to produce green hydrogen. In the direct-air capture unit, the caustic interacts with CO2 to generate sodium carbonate and processed air, while the mineralization unit facilitates the conversion of waste gypsum into sulfate salt and calcium carbonate. The plant's design ensures zero-liquid discharge and boasts equipment inspired by proven industrial technologies. With a production capacity of 125 tons of sulfuric acid per day, this initiative marks a significant step towards sustainable practices in the chemical industry. By incorporating circular economy principles and creating a closed-loop system for resource utilization, the project exemplifies the potential of eco-friendly gypsum upcycling for green hydrogen production and other valuable outputs.