	US 11,753,338 B2
	Methods and systems for controlling carbon burn out
Rafic Y. Minkara, Kennesaw, GA (US); and Joseph W. Cochran, Palm Harbor, FL (US)
Assigned to EM RESOURCES LLC, South Jordan, UT (US)
Appl. No. 17/436,310
Filed by EM Resources LLC, South Jordan, UT (US)
PCT Filed Mar. 3, 2020, PCT No. PCT/US2020/020803 § 371(c)(1), (2) Date Sep. 3, 2021, PCT Pub. No. WO2020/180870, PCT Pub. Date Sep. 10, 2020.
Claims priority of provisional application 62/814,109, filed on Mar. 5, 2019.
Prior Publication US 2022/0169567 A1, Jun. 2, 2022
Int. Cl. C04B 18/08 (2006.01); C04B 20/04 (2006.01); F23G 5/08 (2006.01); C04B 111/10 (2006.01)

CPC C04B 18/08 (2013.01) [C04B 20/04 (2013.01); F23G 5/08 (2013.01); C04B 2111/1093 (2013.01); F23G 2209/12 (2013.01); F23G 2209/30 (2013.01)]

21 Claims

1. A method for beneficiating a recovered fly ash material, the method comprising:

thermally treating a first portion of the recovered fly ash material to form a thermally treated fly ash having a first temperature of at least 1000° F.; and

contacting the thermally treated fly ash with a second portion of the recovered fly ash material to cool the thermally treated fly ash to a second temperature of less than or equal to 500° F. and form a fly ash product;

wherein the fly ash product has a carbon content less than or equal to 8% by weight, based on the total dry weight of the fly ash product.