US 12,234,185 B2
Cementitious reagents, methods of manufacturing and uses thereof
Donald John Lake, Vancouver (CA)
Assigned to Terra CO2 Technology Holdings, Inc., Golden, CO (US)
Filed by Terra CO2 Technology Holdings, Inc., Golden, CO (US)
Filed on Dec. 27, 2023, as Appl. No. 18/397,074.
Application 18/397,074 is a continuation of application No. 18/106,807, filed on Feb. 7, 2023, granted, now 11,884,588.
Application 18/106,807 is a continuation of application No. 17/721,140, filed on Apr. 14, 2022, granted, now 11,591,262, issued on Feb. 28, 2023.
Application 17/721,140 is a continuation of application No. 17/128,404, filed on Dec. 21, 2020, granted, now 11,306,026, issued on Apr. 19, 2022.
Application 17/128,404 is a continuation in part of application No. 16/915,804, filed on Jun. 29, 2020, granted, now 11,104,610, issued on Aug. 31, 2021.
Claims priority of provisional application 63/025,148, filed on May 14, 2020.
Claims priority of provisional application 63/004,673, filed on Apr. 3, 2020.
Claims priority of provisional application 62/867,480, filed on Jun. 27, 2019.
Prior Publication US 2024/0132402 A1, Apr. 25, 2024
Int. Cl. C04B 12/02 (2006.01); C04B 7/36 (2006.01); C04B 7/44 (2006.01); C04B 14/04 (2006.01)
CPC C04B 12/027 (2013.01) [C04B 7/368 (2013.01); C04B 7/4453 (2013.01); C04B 14/041 (2013.01)] 15 Claims
 
1. A method of reducing CO2 in cement production, comprising the steps of:
forming a cementitious reagent, wherein the cementitious reagent:
(i) is a non-crystalline solid;
(ii) has a particle distribution with D[3,2] of 20 μm or less;
(iii) has less than about 10 wt % CaO; and
(iv) is formed by heating an aluminosilicate material to a liquid phase temperature of about 1000-1600° C.; and
adding the cementitious reagent to a binder.