ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Preparation of aluminium ammonium calcium phosphates using microwave radiation

Kinga Łuczka, Daniel Sibera, Aleksandra Smorowska, and Barbara Grzmil

Institute of Chemical and Environment Engineering, West Pomeranian University of Technology, Szczecin, ul. Pułaskiego 10, 70-322, Szczecin, Poland

 

E-mail: kluczka@zut.edu.pl

Abstract: Microwave radiation was used in the acquisition of aluminium ammonium calcium phosphates. The substrates such as CaCO3, H3PO4, aqueous ammonia were reagent grade, whereas Al(OH)3 was prepared afresh. The influence of process parameters (pH 6 ± 2, molar ratios of Al3+: Ca2+: PO43− in the substrates, respectively 0.31: 0.62: 1; 0.5: 0.5: 1; 0.72: 0.36: 1) on the phase composition and the product properties was determined. Statistical software STATISTICA 10 was used for planning and evaluation of the experiments. The process parameters making it possible to acquire the material with the anticipated physicochemical properties were determined based on statistical evaluation of the planned research by the plan fractional factorial design at three levels 3(k−p). The phase composition of the samples was studied using XRD analysis. The specific surface area was calculated using the BET method and the particle size was determined by LSM. Materials with a molar ratio of Al3+: Ca2+ and Al3+: NH4+ in the range of 0.07–0.76 and 0.75–3.4, respectively, with an absorption oil number of 36–56 g per 100 g, SBET within 8.2–73 m2 g−1, and particle size in the range of 156–252 nm were obtained.

Keywords: microwave radiation – anti-corrosive pigments – aluminium ammonium calcium phosphates

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-013-0326-8

 

Chemical Papers 67 (9) 1210–1217 (2013)

Thursday, November 14, 2019

IMPACT FACTOR 2018
1.246
SCImago Journal Rank 2018
0.274
SEARCH
Advanced
VOLUMES
International Conference on Coordination and Bioinorganic Chemistry
46th International Conference of SSCHE
© 2019 Chemical Papers