Method for producing calcium carbonate particles

WO2025009605A1PCT designated stage expired Publication Date: 2025-01-09IDEMITSU KOSAN CO LTD
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Patent Information

Application Number
PCT/JP2024/024365
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-07-05
Filing Date
2024-07-05
Publication Date
2025-01-09

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Abstract

Provided is a method for producing calcium carbonate particles with which it is possible to continuously produce calcium carbonate particles of high whiteness (high purity) in few steps.　Specifically, the method for producing calcium carbonate particles uses a reaction vessel 10 that is provided with a filter medium 2 compatible with crossflow filtration and is capable of circulating a suspension and circulates a suspension containing Ca-containing waste and carbonate ion-containing aqueous solution through the filter medium 2.
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