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

• Authors: Katarzyna Gorazda , Marcin Banach , Agnieszka Makara , Zbigniew Wzorek
• 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.

Keywords

EN

sodium tripolyphosphate; STPP; high bulk density

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2011
• Volume: 13
• Issue: 2
• Pages: 40-45

Dates

published

1 - 1 - 2011

online

16 - 6 - 2011

Contributors

author

Katarzyna Gorazda

• Institute of Chemistry and Inorganic Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland

author

Marcin Banach

• Institute of Chemistry and Inorganic Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland

author

Agnieszka Makara

• Institute of Chemistry and Inorganic Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland

author

Zbigniew Wzorek

• Institute of Chemistry and Inorganic Technology, Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland

References

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Identifiers

DOI

10.2478/v10026-011-0022-9