Gypsum industry news
Sumitomo Osaka Cement uses recycled gypsum wallboard to produce CO2-sequestering circular calcium carbonate
03 March 2025Japan: Sumitomo Osaka Cement has applied for a patent for a method of combining alkali metal hydroxide solutions with CO2 to produce alkali metal salts that react with gypsum to produce calcium carbonate. Energy Weekly News has reported that the developers used gypsum from recycled gypsum wallboard to demonstrate the process.
Published in
Global Gypsum News
