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Number of results
2011 | 13 | 2 | 40-45
Article title

Increasing the bulk density of STPP - influence of the process parameters

Content
Title variants
Languages of publication
EN
Abstracts
EN
The new requirements that were placed on STPP, like high bulk density, the proper relation of Form I and Form II and suitable physicochemical properties, resulted in the development of the present production methods. The paper presents the research results on increasing the bulk density of STPP by a chemical method. In the introduced method the solid sodium phosphate from spray drying and sodium orthophosphate solution, after acid neutralization, were rubbed together. Such an operation changes the physicochemical properties of the dried sodium phosphate before calcining, which results in increasing the bulk density of STPP to a level of 0.80 kg/dm3. The dependence of STPP bulk density on process parameters such as: sodium orthophosphate solution to solid sodium phosphate mass ratio, temperature of dosed sodium orthophosphate solution, as well as the calcining temperature of mixtures were analysed.
Publisher

Year
Volume
13
Issue
2
Pages
40-45
Physical description
Dates
published
1 - 1 - 2011
online
16 - 6 - 2011
Contributors
  • Institute of Chemistry and Inorganic Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland
author
  • Institute of Chemistry and Inorganic Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland
  • Institute of Chemistry and Inorganic Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland
  • Institute of Chemistry and Inorganic Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland
References
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  • Banach, M., Kowalski, Z,. Wzorek, Z. & Gorazda, K. (2009). A chemical method of the production of "heavy" sodium tripolyphosphate with the high content of Form I or Form II. Pol. J. Chem. Tech. 11(2), 13/20. DOI: 10.2478/v10026-009-0018-x.[Crossref]
  • Banach, M., Wzorek, Z. & Gorazda, K. (2009). Production of medium bulk density sodium tripolyphosphate by chemical method. Przem. Chem. 88(4), 370-374, (in Polish).
  • Banach, M., Kowalski, Z., Wzorek, Z. & Gorazda, K. (2009). High bulk density sodium tripolyphosphate produced by chemical method. Przem. Chem. 88(11), 1236-1239, (in Polish).
  • Polish Committee of Standardization. (1993). Polish Standard: Methods of phosphoric salt examination: Determination of water content, gravimetric method. PN-93/C-84300/22, (in Polish).
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_v10026-011-0022-9
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