CONTROL METHOD FOR THE PARTICLE SIZE AND THE SPECIFIC SURFACE AREA OF CARBONATE MINERALS PRECIPITATED BY CARBONATE MINERALIZATION FOR CO2 FIXATION

摘要

The present invention relates to a method for controlling the particle size and specific surface area of carbonate minerals which are the byproduct of carbonate mineralization for reducing CO2 and, more particularly, to a method for controlling the particle size and specific surface area of carbonate minerals, comprising the steps of: adding a basic solution after manufacturing the suspension of a compound including calcium ions; and generating carbon dioxide microbubbles and making the microbubbles react with the mixed solution of the suspension and the basic solution by supplying the mixed solution and carbon dioxide to a microbubble generation device, wherein the ratio of hydroxide ion (OH-) concentration in the basic solution to calcium ion (Ca2+) concentration in the suspension is adjusted to be between 1 and 2. [Reference numerals] (AA) Start; (BB) End; (S10) Step for adding a basic solution after manufacturing the suspension of a compound including calcium ions, and adjusting the ratio of hydroxide ion (OH-) concentration to calcium ion (Ca2 ) concentration in the suspension between 1 and 2; (S20) Step for generating carbon dioxide bubbles and making the bubbles react with the mixed solution of the suspension and the basic solution by supplying the mixed solution and carbon dioxide to a microbubble generation device