A chemical method of the production of "heavy" sodium tripolyphosphate with the high content of Form I or Form II

• Authors: Marcin Banach , Zygmunt Kowalski , Zbigniew Wzorek , Katarzyna Gorazda
• Languages of publication: EN

Abstracts

EN

Sodium tripolyphosphate STPP is used in laundry detergent as a detergent "builder". The paper presents the chemical method of obtaining "heavy", i.e. with higher bulk density granulated sodium tripolyphosphate. The bulk density of sodium tripolyphosphate was increased by preparing a mixture of the dried sodium phosphates, the recycled subgrain of STPP and water in specific proportions and calcining this mixture for 1 hour at 400°C and 550°C (to obtain a proper STPP form) in the chamber kiln. This method allows producing the granular sodium tripolyphosphate with high bulk density (1.04-1.07 kg/dm3) and a high content of Form I or Form II, respectively.

Keywords

EN

sodium tripolyphosphate; high bulk density; granular product

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2009
• Volume: 11
• Issue: 2
• Pages: 13-20

Dates

published

1 - 1 - 2009

online

19 - 6 - 2009

Contributors

author

Marcin Banach

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

author

Zygmunt Kowalski

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

author

Zbigniew Wzorek

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

author

Katarzyna Gorazda

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

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Identifiers

DOI

10.2478/v10026-009-0018-x