US 12,330,989 B2
Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients; and associated systems and methods
Yet-Ming Chiang, Weston, MA (US); Leah Ellis, Nova Scotia (CA); and Andres Badel, Deerfield Beach, FL (US)
Assigned to Massachusetts Institute of Technology, Cambridge, MA (US)
Filed by Massachusetts Institute of Technology, Cambridge, MA (US)
Filed on Dec. 22, 2023, as Appl. No. 18/395,402.
Application 18/395,402 is a continuation of application No. 17/423,467, previously published as PCT/US2020/013837, filed on Jan. 16, 2020.
Claims priority of provisional application 62/887,143, filed on Aug. 15, 2019.
Claims priority of provisional application 62/818,604, filed on Mar. 14, 2019.
Claims priority of provisional application 62/800,220, filed on Feb. 1, 2019.
Claims priority of provisional application 62/793,294, filed on Jan. 16, 2019.
Prior Publication US 2024/0150235 A1, May 9, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B01J 19/00 (2006.01); C04B 2/08 (2006.01); C04B 7/06 (2006.01)
CPC C04B 2/08 (2013.01) [B01J 19/0033 (2013.01); C04B 7/06 (2013.01); B01J 2219/00029 (2013.01); B01J 2219/00033 (2013.01); C04B 2290/20 (2013.01); Y02P 40/121 (2015.11); Y02P 40/18 (2015.11)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
producing an acid;
dissolving a material comprising calcium in the acid to produce calcium ions;
treating the calcium ions to produce solid calcium hydroxide and/or calcium oxide; and
utilizing the solid calcium hydroxide and/or calcium oxide in a downstream process to produce a cement, wherein the downstream process comprises heating the solid calcium hydroxide and/or calcium oxide in a kiln; and
wherein the material further comprises magnesium and/or nickel.