Title:
二酸化炭素の浸出に基づくカルシウムマグネシウムイオン溶液による炭酸カルシウムマグネシウムの製造システム
Document Type and Number:
Japanese Patent JP7100093
Kind Code:
B2
Abstract:
The present invention discloses the systems of producing calcium and magnesium carbonate from the Ca/Mg containing solution leached by a CO2-based hydrometallurgical process which includes: a precipitation reactor that the Ca/Mg containing leached solution is continuously added and fully mixed with the alkaline reagent at specific mole ratio into the precipitation reactor and the reactor also comprises a CO2 bubbling module where CO2 is captured and recirculated from the thermal decomposition process as needed; a solid-liquid separation unit that the treated slurry is treated by the solid-liquid separation unit to produce precipitated calcium and magnesium carbonate products where the recirculating water is recycled back into the precipitation reactor; a thermal decomposition unit that the calcium and magnesium carbonate products is calcined by the thermal decomposition unit to produce an alkaline reagent and the alkaline reagent is recycled back into the precipitation reactor for the next batch of reaction.
Inventors:
Zhou Kobune
Application Number:
JP2020148506A
Publication Date:
July 12, 2022
Filing Date:
September 03, 2020
Export Citation:
Assignee:
Greenore Cleantech (Shanghai) Co., Ltd
International Classes:
C22B26/20; C01F11/18; C22B3/20; C22B3/44
Domestic Patent References:
| JP2000144271A | ||||
| JP2005068535A | ||||
| JP2005015272A | ||||
| JP2020033263A |
Attorney, Agent or Firm:
Koji Murai
Ako Kobayashi
Ako Kobayashi