US 11,873,247 B2
Uncalcined geopolymer-based refractory material and method for its preparation
Yuan Fang, Shenzhen (CN); Feng Xing, Shenzhen (CN); and Aoxuan Wang, Shenzhen (CN)
Assigned to Shenzhen University, Shenzhen (CN)
Filed by Shenzhen University, Shenzhen (CN)
Filed on Mar. 31, 2023, as Appl. No. 18/129,441.
Application 18/129,441 is a division of application No. 17/474,908, filed on Sep. 14, 2021.
Claims priority of application No. 202010959049.5 (CN), filed on Sep. 14, 2020.
Prior Publication US 2023/0250022 A1, Aug. 10, 2023
Int. Cl. C04B 14/32 (2006.01); C04B 28/00 (2006.01); C04B 14/38 (2006.01)
CPC C04B 28/006 (2013.01) [C04B 14/324 (2013.01); C04B 14/383 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for preparing an uncalcined geopolymer-based refractory material, the method comprising the steps of:
(a) mixing a mineral powder, a fly ash, a metakaolin, and silicon carbide whiskers by ball milling to form a milled material;
(b) mixing the milled material with a sodium water glass solution and water to form a slurry; and
(c) curing the slurry to obtain the uncalcined geopolymer-based refractory material,
wherein the uncalcined geopolymer-based refractory material comprises (i) a geopolymer matrix formed by polymerization of a mixture consisting of the mineral powder, the fly ash, and the metakaolin, and (ii) the silicon carbide whiskers embedded in the geopolymer matrix.