Title:
METHOD FOR MINERALIZING CO2 GAS AND RECOVERING VALUABLE METALS, CO2 MINERALIZING DEVICE, AND CO2 MINERALIZATION AND VALUABLE-METAL RECOVERY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/032043
Kind Code:
A1
Abstract:
Provided are a method and device that can suppress release of CO2 gas into the atmosphere and efficiently recover valuable metal from mineral resources that, conventionally, have not be effectively utilized. This method includes: pretreating a starting material that includes a valuable metal and at least one type of alkaline earth metal selected from the group consisting of Mg and Ca and obtaining an alkaline earth metal-rich component and a valuable metal-containing residue; reacting the CO2 gas and the alkaline earth metal that is in the alkaline earth metal-rich component and mineralizing the CO2 gas as an alkaline earth metal carbonate; and recovering a valuable metal-containing product, an intermediate, or both from the valuable metal-containing residue.
Inventors:
SAUDA KENZO (JP)
FUJIMOTO SHO (JP)
FUJIMOTO SHO (JP)
Application Number:
PCT/JP2021/031996
Publication Date:
March 09, 2023
Filing Date:
August 31, 2021
Export Citation:
Assignee:
JGC CORP (JP)
International Classes:
C22B3/44; B01D53/14; B01D53/62; C22B1/02; C22B3/08; C22B23/00
Foreign References:
| US20040213705A1 | 2004-10-28 | |||
| JPS498767B1 | 1974-02-28 | |||
| JP2002241857A | 2002-08-28 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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