Synthesis of nano precipitated calcium carbonate by using a carbonation process through a closed loop reactor

Influences of CO2 Bubbling Types on Preparation of Calcite Nanoparticles by Carbonation Process

“…7). This finding was in good agreement with those of previous study [20]. Except for the precipitate prepared at 0.3 L/min ( Fig.…”

“…The particle size of PCC was found to be 50 -100 nm using the CO 2 bubbling orificer, whereas that of PCC in the absence of orificer was obtained in micron sizes [20]. It is obvious that MBG should be conducted to obtain calcite nanoparticles [5][6][7].…”

Synthesis and Characterization of Precipitated CaCO3 from Ankerite Prepared by Bubbling Method

“…Precipitated CaCO 3 powder diffraction patterns produced by the bubble method are presented in Fig. 1 (b [11], [16,19,20], [21]. PCC powder crystal size is calculated using equation 1…”

Preparation of Water Suspensions of Nanocalcite for Cultural Heritage Applications

“…The chemical route is generally advantageous as it is faster, involves lower energy consumption with simple equipment, and allows better product control. Calcium carbonate nanoparticles (CCNPs) with average size in the 17–100 nm range have been synthesized by reactive precipitation in a high-pressure jet homogenizer [ 24 ], flame spraying [ 25 ], mechanochemical method [ 26 ], high-gravity reactive precipitation [ 27 ], microemulsion, and carbonation processes in a loop reactor [ 28 ]; the processes based on precipitation being the most frequently used because of their high yield, simplicity, and scalability. Lime carbonation by CO 2 , the most common industrial process for the production of CaCO 3 powders, may be designed for the production of nanosized particles once the difficulty of controlling particle size and shape of CCNPs has been overcome [ 29 ].…”