US 12,005,459 B2
Method and facility for producing material containing hydrated cement
Eike Willms, Dortmund (DE); Guido Kache, Beckum (DE); and Jost Lemke, Ennigerloh (DE)
Assigned to thyssenkrupp Industrial Solutions AG, Essen (DE); and thyssenkrupp AG, Essen (DE)
Appl. No. 17/276,881
Filed by thyssenkrupp Industrial Solutions AG, Essen (DE); and thyssenkrupp AG, Essen (DE)
PCT Filed Sep. 17, 2019, PCT No. PCT/EP2019/074827
§ 371(c)(1), (2) Date Mar. 17, 2021,
PCT Pub. No. WO2020/058247, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 10 2018 123 115.6 (DE), filed on Sep. 20, 2018.
Prior Publication US 2022/0032316 A1, Feb. 3, 2022
Int. Cl. B02C 23/38 (2006.01); B02C 23/10 (2006.01); B02C 23/18 (2006.01); B02C 23/24 (2006.01); B03B 9/06 (2006.01); C04B 18/167 (2023.01)
CPC B03B 9/065 (2013.01) [B02C 23/10 (2013.01); B02C 23/18 (2013.01); B02C 23/24 (2013.01); B02C 23/38 (2013.01); C04B 18/167 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for processing material that contains cement rock, the method comprising:
comminuting the material in a first comminuting device;
feeding the material to a reactor in which the material is mixed with an aqueous liquid and CO2, wherein a mixing movement of the material is generated in the reactor;
maintaining a temperature in the reactor at greater than 100° C. and maintaining a pressure in the reactor to be greater than an atmospheric pressure; and
removing the material from the reactor and subdividing the material into at least two fractions via a classifying device, wherein the at least two fractions include at least a coarse fraction and middle fraction and wherein the coarse fraction is larger than 16 mm and the middle fraction is smaller than 16 mm, further comprising returning the coarse fraction of the at least two fractions to the reactor and comminuting the coarse fraction in a second comminuting device before returning the coarse fraction to the reactor.