	US 11,999,655 B2
	Building materials comprising carbon-dioxide-treated agglomerated particles
Peter M. Wilson, Knoxville, MD (US)
Assigned to Specialty Granules Investments LLC, Parsippany, NJ (US)
Filed by Specialty Granules Investments LLC, Parsippany, NJ (US)
Filed on May 24, 2021, as Appl. No. 17/328,520.
Prior Publication US 2022/0371955 A1, Nov. 24, 2022
Int. Cl. C04B 18/02 (2006.01); C04B 14/14 (2006.01); C04B 14/42 (2006.01); C04B 20/00 (2006.01); C04B 20/10 (2006.01); C04B 26/26 (2006.01); C04B 111/00 (2006.01)

CPC C04B 18/021 (2013.01) [C04B 14/14 (2013.01); C04B 14/42 (2013.01); C04B 20/0016 (2013.01); C04B 20/1074 (2013.01); C04B 26/26 (2013.01); C04B 2111/00586 (2013.01); C04B 2111/00612 (2013.01)]

19 Claims

1. A method comprising:

obtaining (a) a plurality of fragments, the plurality of fragments comprising at least one of metabasalt, andesite, rhyolite, or a combination thereof and (b) a binder;

mixing (a) the plurality of fragments and (b) the binder to produce an agglomerated particle that is formed by agglomerating together the plurality of fragments and the binder;

drying the agglomerated particle to obtain a dried agglomerated particle having a first solubility; and

treating the dried agglomerated particle with carbon dioxide gas to obtain a carbon-dioxide-gas-treated dried agglomerated particle having a second solubility,

wherein the treating the dried agglomerated particle with carbon dioxide gas uses conditions sufficient to achieve a reduction in solubility from the first solubility to the second solubility of at least 95%.