Composition-dependent fluid fertilizer crystallization temperature

• Autorzy: Cichy B.
• Języki publikacji: EN

Abstrakty

EN

In the following publication the research results on composition-dependent fluid fertilizer crystallization temperature are presented. The fertilizers contained: ammonium polyphosphate water solution, carbamide, ammonium nitrate, potassium chloride were studied. Crystallization temperature was determined on the basis of solution pre-cooling at 1°C/10min and determination of opacity appearance moment. The research method used is consistent with IFS recommendations (International Fertilizer Society). The subject matter of the study was the influence of individual components of compound fluid fertilizers on the crystallization temperature. The liquid fertilizers in the form of solutions were analyzed for the following interdependence of N:P2O5:K2O nutrients-1:1:1. The formulas based on ammonium polyphosphate, mercantile UAN solution (urea -ammonium nitrate solution) and potassium chloride crystallize in positive temperatures. A decrease in the crystallization temperature of fluid fertilizers with the above nutritional composition can be obtained by complementing nitrogen content with pure urea or with urea -ammonium nitrate solution (UAN) and urea. As a result, nitrate share in the solution decreases in favour of amido-nitrogen. The influence of phosphate content increase on the crystallization temperature was analyzed, as well. The analysis was based on an increasing ammonium polyphosphate content in the system of solutions. The analyzed solutions were in nutrient relation range from 1:1:1 to 1:3:1.

Słowa kluczowe

EN

fluid fertilizer; polyphosphate

PL

nawozy płynne; polifosforany

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2006
• Tom: Vol. 8, nr 3
• Strony: 12--14
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Cichy B.

• Institute of Inorganic Chemistry, 44-101 Gliwice, Sowińskiego 11,

Bibliografia

• (1) Palgrave D.A.: Solution fertilisers: the crucial properties, Proc. 559, The International Fertiliser Society, York 2005 (UK).
• (2) Cichy B., Folek S.: The role of polyphosphates in NPK liquid fertilizers, ,,New Agrochemicals and their safe use for health and environment", p. 38 - 41, Chemistry for agriculture v. 5, CZECH-POL TRADE Prague - 8 Brussels 2004.
• (3) Cichy B.: Multicomponent Fluid Fertilizers Containing Polyphosphates, Pol. J. Env. Stud., Vol. 14, Supplement III, 2005
• (4) Georgiou C. A.: Developments in monitoring methods for nutrient solutions, Proc. 530, The International Fertiliser Society, York 2003 (UK)
• (5) Palgrave D. A., Cheng D. C_H.: Fluid fertilisers: development of procedures to charakterise their physical properties, Proc. 514, The International Fertiliser Society, York 2003 (UK).
• (6) Directive (WE) no. 2003/2003 on fertilizers, 13 November 2003.
• (7) Cichy B., Folek S.: Utilisation of complexing abilities of polyphosphates in liquid fertilizers, based on the example of fertilizers type NP and NPK with zinc, Ind. Eng. Chem Res.; 44, 4513 - 4517, 2005.
• (8) Grzebisz W., Cichy B., Biber M.: Polyphosphate fertilizers - a new concept of crops fertilization with phosphorus, Chemistry for agriculture v. 6, Czech-Pol Trade Prague - Brussels 2005.