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Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes


Ukrainczyk, Marko; Kontrec, Jasminka; Babić-Ivančić, Vesna; Brečević, Ljerka; Kralj, Damir
Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes // Kemija u industriji : časopis kemičara i tehnologa Hrvatske, 56 (2007), 07-08; 385-390 (međunarodna recenzija, članak, znanstveni)


Naslov
Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes

Autori
Ukrainczyk, Marko ; Kontrec, Jasminka ; Babić-Ivančić, Vesna ; Brečević, Ljerka ; Kralj, Damir

Izvornik
Kemija u industriji : časopis kemičara i tehnologa Hrvatske (0022-9830) 56 (2007), 07-08; 385-390

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Precipitated calcium carbonate ; slaked lime ; batch and semicontinuous

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.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
098-0982904-2951 - Mehanizmi taloženja anorganskih biokompatibilnih i srodnih materijala (Damir Kralj, )

Ustanove
Institut "Ruđer Bošković", Zagreb

Citiraj ovu publikaciju

Ukrainczyk, Marko; Kontrec, Jasminka; Babić-Ivančić, Vesna; Brečević, Ljerka; Kralj, Damir
Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes // Kemija u industriji : časopis kemičara i tehnologa Hrvatske, 56 (2007), 07-08; 385-390 (međunarodna recenzija, članak, znanstveni)
Ukrainczyk, M., Kontrec, J., Babić-Ivančić, V., Brečević, L. & Kralj, D. (2007) Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes. Kemija u industriji : časopis kemičara i tehnologa Hrvatske, 56 (07-08), 385-390.
@article{article, year = {2007}, pages = {385-390}, keywords = {Precipitated calcium carbonate, slaked lime, batch and semicontinuous}, journal = {Kemija u industriji : \v{c}asopis kemi\v{c}ara i tehnologa Hrvatske}, volume = {56}, number = {07-08}, issn = {0022-9830}, title = {Precipitated Calcium Carbonate Prepared by Batch and Semicontinuous Processes}, keyword = {Precipitated calcium carbonate, slaked lime, batch and semicontinuous} }

Časopis indeksira:


  • Web of Science Core Collection (WoSCC)
    • Emerging Sources Citation Index (ESCI)
  • Scopus


Uključenost u ostale bibliografske baze podataka:


  • Chemical Abstracts
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  • Chemischer Informationdienst
  • Referativny Zhurnal
  • Theoretical Chemical Engineering Abstracts