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Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes

M. Ukrainczyk
J. Kontrec
V. Babić-Ivančić
Lj. Brečević
D. Kralj

Puni tekst: engleski, pdf (413 KB) str. 385-390 preuzimanja: 319* citiraj
APA 6th Edition
Ukrainczyk, M., Kontrec, J., Babić-Ivančić, V., Brečević, Lj. i Kralj, D. (2007). Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes. Kemija u industriji, 56 (7-8), 385-390. Preuzeto s https://hrcak.srce.hr/13526
MLA 8th Edition
Ukrainczyk, M., et al. "Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes." Kemija u industriji, vol. 56, br. 7-8, 2007, str. 385-390. https://hrcak.srce.hr/13526. Citirano 21.11.2019.
Chicago 17th Edition
Ukrainczyk, M., J. Kontrec, V. Babić-Ivančić, Lj. Brečević i D. Kralj. "Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes." Kemija u industriji 56, br. 7-8 (2007): 385-390. https://hrcak.srce.hr/13526
Harvard
Ukrainczyk, M., et al. (2007). 'Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes', Kemija u industriji, 56(7-8), str. 385-390. Preuzeto s: https://hrcak.srce.hr/13526 (Datum pristupa: 21.11.2019.)
Vancouver
Ukrainczyk M, Kontrec J, Babić-Ivančić V, Brečević Lj, Kralj D. Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes. Kemija u industriji [Internet]. 2007 [pristupljeno 21.11.2019.];56(7-8):385-390. Dostupno na: https://hrcak.srce.hr/13526
IEEE
M. Ukrainczyk, J. Kontrec, V. Babić-Ivančić, Lj. Brečević i D. Kralj, "Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes", Kemija u industriji, vol.56, br. 7-8, str. 385-390, 2007. [Online]. Dostupno na: https://hrcak.srce.hr/13526. [Citirano: 21.11.2019.]

Sažetak
A comparison of the physical-chemical properties of precipitated calcium carbonate (PCC), prepared by batch and semicontinuous processes, is presented. In both processes, PCC, was synthesized by carbonation of slaked lime. In the batch process the experiments were performed by varying the initial mass concentration and temperature, and the semicontinuous process was conducted by varying the initial supersaturation and temperature. Calcite was the only calcium carbonate polymorph that appeared under the experimental conditions investigated. It was found, that in the batch experiments the specific surface area and the average size of calcite particles decreased with the increase of temperature. At the same time, the increase of the initial mass concentration of slaked lime enhanced the degree of precipitate aggregation. PCC prepared by the semicontinuous process, conducted at low temperatures and high supersaturations, was of high specific surface area. By careful tuning of the semicontinuous process parameters, calcite in the form of rhombohedral, scalenohedral or nanosized spherical particles can be produced

Ključne riječi
precipitated calcium carbonate; slaked lime; batch and semicontinuous carbonation proces

Hrčak ID: 13526

URI
https://hrcak.srce.hr/13526

[hrvatski]

Posjeta: 704 *