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News Sumitomo Osaka Cement uses recycled gypsum wallboard to produce CO2-sequestering circular calcium carbonate

Sumitomo Osaka Cement uses recycled gypsum wallboard to produce CO2-sequestering circular calcium carbonate

Written by Global Gypsum staff
03 March 2025
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Japan: 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.

Last modified on 21 March 2025
Published in Global Gypsum News
Tagged under
  • Sumitomo Osaka Cement
  • Japan
  • Research
  • circular economy
  • Recycling
  • sustainability
  • CO2
  • sequestration
  • calcium carbonate
  • GGM63

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