公开(公告)号：US20250019308A1

公开(公告)日：2025-01-16

申请号：US18712959

申请日：2022-11-30

Applicant: TOKUYAMA CORPORATION

Inventor： Takahiro ONISHI ,  Kohei OMURA ,  Takumi DEGUCHI

IPC: C04B28/26 ,  C04B18/08 ,  C04B18/14 ,  C04B22/10 ,  C04B40/00

Abstract: A powdery hydraulic composition that includes: a powder raw material A having at least one or more selected from fly ash and slag fine powder, and a powder raw material B having at least one or more selected from alkali silicate powder and alkali carbonate powder, and by mixing with water, hardening is possible even at ordinary temperature, and it is not necessary to use alkali solution comprising sodium hydroxide, etc.

公开(公告)号：US20240327305A1

公开(公告)日：2024-10-03

申请号：US18613305

申请日：2024-03-22

Applicant: Tokuyama Corporation

Inventor： Kohei OMURA ,  Takahiro ONISHI

IPC: C04B40/02 ,  B01D53/62 ,  C04B7/36 ,  C04B22/00 ,  C04B111/00

CPC classification number: C04B40/0231 ,  B01D53/62 ,  C04B7/367 ,  C04B22/004 ,  B01D2251/404 ,  B01D2257/504 ,  B01D2258/0233 ,  C04B2111/00017

Abstract: A calcium-containing composition with fixed CO2 is produced by contacting a mixture of a calcium-containing composition before CO2 fixation and water with a CO2-containing gas. The calcium-containing composition, liquid water, and the CO2-containing gas having a temperature between 20 degree Celsius and 300 degree Celsius and a CO2 concentration between 1 volume % and 100 volume % are supplied to a reactor. By the supplied CO2-containing gas, the calcium-containing composition and water are made to flow in the reactor. Alternatively, the calcium-containing composition and water are in the reactor. Thus, CO2 is fixed in the calcium-containing composition and simultaneously the calcium-containing composition is dried to a water content of 5 mass % or less.