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Wyszukujesz frazę "ammonium nitrate" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Selected magnesium compounds as possible inhibitors of ammonium nitrate decomposition
Autorzy:
Hoffmann, Józef
Kaniewski, Maciej
Nieweś, Dominik
Hoffmann, Krystyna
Powiązania:
https://bibliotekanauki.pl/articles/780057.pdf
Data publikacji:
2020
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
ammonium nitrate
thermal analysis
magnesium compounds
exothermic decomposition
phase transition
Opis:
Ammonium nitrate (AN) is considered to be a very hazardous and difficult to handle component of mineral fertilizers. Differential thermal analysis coupled with thermogravimetry and mass spectrometry was used to determine the possible inhibiting effect of selected magnesium compounds on thermal decomposition of AN. Each additive was mixed with AN to create samples with AN:magnesium compound mass ratios of 4:1, 9:1 and 49:1. Most of analyzed compounds enhanced thermal stability of ammonium nitrate, increasing the temperature of the beginning of exothermic decomposition and decreasing the amount of generated heat. Magnesium chloride hexahydrate was determined to accelerate the decomposition of AN while magnesium sulphate, sulphate heptahydrate, nitrate hexahydrate together with magnesite and dolomite minerals were defi ned as inhibiting agents.
Źródło:
Polish Journal of Chemical Technology; 2020, 22, 2; 1-8
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utilization of the post – filtration lye from the soda-chlorine-saltpetre method of soda production
Autorzy:
Drużyński, S.
Trypuć, M.
Kiełkowska, U.
Mazurek, K.
Powiązania:
https://bibliotekanauki.pl/articles/779817.pdf
Data publikacji:
2011
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
metoda SCS
podwójna wymienna
azotan amonu i metawanadan amonu
SCS method
double exchange
ammonium nitrate and ammonium metavanadate
Opis:
The optimal conditions were determined for the precipitation of ammonium metavanadate from the solutions of ammonium nitrate with the use of sodium metavanadate. The experiments were performed with the molar ratio of salts NH4NO3:NaVO3 1.5:1 at temperatures 293, 303, 313 and 323 K. Based on the obtained results, the optimal time of the process was determined as 5 h at 293–303K. Under these conditions, the achieved yield of the precipitation process was ~98.7%, while the contents of the vanadium salts in the post – filtration solution was ~0.02%.
Źródło:
Polish Journal of Chemical Technology; 2011, 13, 4; 53-56
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Plotting of the solubility isotherm for the NH4NO3 + NaVO3 + H2O system
Autorzy:
Trypuć, M.
Drużyński, S.
Mazurek, K.
Powiązania:
https://bibliotekanauki.pl/articles/779429.pdf
Data publikacji:
2008
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
badanie równowagi
wymiana podwójna
azotan amonu
wanadan amonu
SCS method
equilibrium investigation
double exchange
ammonium nitrate(V)
ammonium vanadate(V)
Opis:
The equilibrium research was performed for the NH4NO3 + NaVO3 + NH4VO3 + NaNO3 + H2O system at 293 and 303 K. The location of the P1 and P2 triple points was determined on the equilibrium plots with the planar projection according to Jänecke method. The maximum yield of the conversion of ammonium nitrate(V) to ammonium vanadate(V) was calculated at P1 points. The results constitute the basis to design further equilibrium experiments aimed to precisely determine the lines separating the areas of the co-crystallization of salts in the investigated system on the equilibrium plots in the oblique projection on a plane according to Jänecke method.
Źródło:
Polish Journal of Chemical Technology; 2008, 10, 4; 11-14
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nitrogen-phosphorous fertilizers on the base of concentrated ammonium nitrate solution and Central Kyzylkum phosphate raw material
Autorzy:
Akhmed, R.
Shafoat, N.
Powiązania:
https://bibliotekanauki.pl/articles/778292.pdf
Data publikacji:
2014
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
ammonium nitrate solution
phosphate raw material
activation
nitrogen phosphorous fertilizer
toughness of granules
velocity of granules dissolution
Opis:
This article presents obtaining of nitrogen-phosphate fertilizers by reacting ordinary phosphate powder from Central Kyzylkum (Uzbekistan) with 70–90% ammonium nitrate solution at 100oС. Chemical composition of the fertilizers was determined fully. Relevant consistence of acceptable forms of Р2О5 and СаО in the product extremely decreased by the increase of amount of phosphate raw material (PRM) in reaction mixture. The addition of phosphate additive into ammonium nitrate solution signifi cantly increases toughness of ammonium nitrate granules and their growth velocity proportionally by phosphate powder added. Herewith, initial concentration of ammonium nitrate did not effect practically on the granule’s toughness. It is described that, phosphate additive decreases the speed of solubility of ammonium nitrate granules almost up to 1.83 times. On our opinion, decrease of fertilizer solubility is the result of growing phosphorite share in the products. The more is the phosphorite share, the more slowly dissolution process of the fertilizer granule does occur.
Źródło:
Polish Journal of Chemical Technology; 2014, 16, 3; 30-35
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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