Utilization of waste gypsum in fertilizer production

• Authors: Przemysław Malinowski , Mieczysław Borowik , Wiesław Wantuch , Leszek Urbańczyk , Michał Dawidowicz , Andrzej Biskupski
• Languages of publication: EN

Abstracts

EN

The results of the study regarding utilization of the waste gypsum formed as a by-product during the production of the magnesium sulphate from dolomite have been presented. The use of this waste have been proposed for the production of granulated multi-component fertilizers containing 25% N; 8% S; 14% CaO and 3.5% MgO. In the process of fertilizer production, the urea which will be bounded with the calcium and magnesium sulphate from the waste in the form of adducts of CaSO4 . 4CO(NH2)2 and MgSO4 . CO(NH2)2 . 3H2O will be the source of nitrogen in the fertilizer. It has been stated on the basis of the laboratory tests that the fertilizer with the assumed composition can be obtained by means of granulation of the raw material pulp, along with the dried and ground product return. The possibility of the production of the fertilizer with good physical properties according to the assumed concept has been confirmed in the pilot scale

Keywords

EN

fertilizer; adduct; gypsum; waste; by-product; magnesium sulphate

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2014
• Volume: 16
• Issue: 1
• Pages: 45-47

Dates

published

1 - 03 - 2014

online

25 - 03 - 2014

Contributors

author

Przemysław Malinowski

• University of Applied Sciences in Nysa, ul. Armii Krajowej 7, 48-300 Nysa, Poland

author

Mieczysław Borowik

• Fertilizers Research Institute, al. 1000-lecia Państwa Polskiego 13 A, 24-110 Puławy, Poland

author

Wiesław Wantuch

• Chemical Company Alwernia S.A., ul. K. Olszewskiego 25, 32-566 Alwernia, Poland

author

Leszek Urbańczyk

• Chemical Company Alwernia S.A., ul. K. Olszewskiego 25, 32-566 Alwernia, Poland

author

Michał Dawidowicz

• Fertilizers Research Institute, al. 1000-lecia Państwa Polskiego 13 A, 24-110 Puławy, Poland

author

Andrzej Biskupski

• Fertilizers Research Institute, al. 1000-lecia Państwa Polskiego 13 A, 24-110 Puławy, Poland

References

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Identifiers

DOI

10.2478/pjct-2014-0008