<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>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.</p></abstract>

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.

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

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

Polish Journal of Chemical Technology

{"article-title":"Increasing the bulk density of STPP - influence of the process parameters"}

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,...

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

Online veröffentlicht: 16. Juni 2011

Seitenbereich: 40 - 45

DOI: https://doi.org/10.2478/v10026-011-0022-9

Schlüsselwörter
sodium tripolyphosphate, STPP, high bulk density

This content is open access.

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

Online veröffentlicht: 16. Juni 2011

Seitenbereich: 40 - 45

DOI: https://doi.org/10.2478/v10026-011-0022-9

Schlüsselwörtersodium tripolyphosphate, STPP, high bulk density

This content is open access.

Schlüsselwörter
sodium tripolyphosphate, STPP, high bulk density