Autor: Białowicz, K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Precipitation of calcium carbonate in the presence of urea at 293 K and 343 K
Autorzy:: Białowicz, K.
Kiełkowska, U.
Powiązania:: https://bibliotekanauki.pl/articles/778787.pdf
Data publikacji:: 2014
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: calcium carbonate
precipitation
sodium bicarbonate
urea
utilization
Opis:: The results of the precipitation of calcium carbonate from a waste post-distillation liquid (DS) and a sodium bicarbonate saturated solution – both from the Solvay method – in the presence of urea are presented. The investigation was carried out at 293 K and 343 K. Reagent dosage times of 1, 5, 10, 20 and 30 min, and urea concentrations of 5, 6 and 10 mol/dm³ were applied. The granulometric composition, the values of bulk and packing densities and the absorptiveness sorption of water and paraffin oil from the obtained calcium carbonate were investigated.
Źródło:: Polish Journal of Chemical Technology; 2014, 16, 2; 95-98
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Precipitation of calcium carbonate in the presence of urea at 293K
Autorzy:: Białowicz, K.
Kiełkowska, U.
Trypuć, M.
Powiązania:: https://bibliotekanauki.pl/articles/779431.pdf
Data publikacji:: 2008
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: węglan wapnia
wodorowęglan sodu
mocznik
gęstość
calcium carbonate
waste distillation liquor (DS)
sodium bicarbonate
urea
bulk density
packing density
Opis:: The results of the precipitation of calcium carbonate from waste distillation liquor (DS) from the Solvay method and sodium bicarbonate saturated solution in the presence of urea were presented. The investigation was carried out at 293K. The influence of the time of reagents dosage to the solution of urea on the physicochemical character of obtaining product was studied. The time of reagents dosage: 1, 5, 10, 20, 30 min and the concentration of the urea applied: 0.5, 1, 2 and 4 mol/dm3. The granulometric composition, the values of bulk and packing densities and the absorptiveness sorption of water and paraffin oil of the obtaining calcium carbonate were investigated.
Źródło:: Polish Journal of Chemical Technology; 2008, 10, 4; 7-10
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Leaching of vanadium(V) from the mixture after potassium metavanadate synthesis based on KCl and spent vanadium catalyst
Autorzy:: Kiełkowska, U.
Białowicz, K.
Drużyński, S.
Powiązania:: https://bibliotekanauki.pl/articles/780081.pdf
Data publikacji:: 2013
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: KVO3 synthesis
spent vanadium catalyst
leaching
recovery
iron
vanadium(V)
Opis:: The results of the leaching of vanadium(V) from the mixture after potassium metavanadate synthesis from KCl and spent vanadium catalyst in the presence of steam were presented. Spent vanadium catalyst was obtained from the waste storage of a chemical plant producing sulfuric acid(VI) by the contact method. The reaction mixture was leached using different solutions: 1 M Na2CO3, 20% CO(NH2)2, 15% NaOH, 15% KOH, 2 M H2SO4. The effect of time and temperature was studied. The results showed that for reaction mixture leached for 4 h at 303 K in the presence of 15% sodium hydroxide solution at a liquid:solid ratio of 10:1, the extent of leaching of vanadium(V) was 95.43%.
Źródło:: Polish Journal of Chemical Technology; 2013, 15, 4; 33-35
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Vanadium pentoxide application for the synthesis of NaVO3 in the presence of oxygen
Autorzy:: Białowicz, K.
Trypuć, M.
Mazurek, K.
Kiełkowska, U.
Powiązania:: https://bibliotekanauki.pl/articles/779433.pdf
Data publikacji:: 2008
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: środowisko
synteza
identyfikacja parametrów
metawanadan sodu
environment
synthesis
parameter identification
unit operations
sodium metavanadate
Opis:: Investigation was carried out on the optimal conditions of the synthesis of NaVO3 and Cl2 from NaCl and V2O5 in the presence of the atmospheric oxygen. The influence of the excess of NaCl relative to V2O5 was investigated. Also the effect of the quartz sand introduced into the reaction mixture on the yield of the NaVO3 synthesis was determined. The obtained product of synthesis was isolated from the post-reaction mixture.
Źródło:: Polish Journal of Chemical Technology; 2008, 10, 4; 4-6
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

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