Study of influence of reaction temperature and the nitric acid concentration in the reaction with dolomite

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Study of influence of reaction temperature and the nitric acid concentration in the reaction with dolomite

Popis výsledku v původním jazyce

In this study dissolution of dolomite in nitric acid was observed. This reaction belongs to a group of heterogenous non-catalytic processes. Study of the reaction was carried out in dilute solutions of nitric acid in concentration range 10 - 100 mol.m-3and temperature range 293 - 333 K. Experiments took place at approximately constant concentration of nitric acid in semibatch isotherm stirring reactor with selected monofraction of dolomite grains (0.4 - 0.5 mm) originated from Vrchlabí area. pH value of solution was measured by pH electrode and it was kept at constant levels during the whole experiment by adding more concentrated nitric acid solution. Gained dependencies show that the reaction course is influenced mainly by temperature and concentration of used batch acid in the range of used reaction conditions. Effect of stirring on reaction course is perceptible at low stirring speed only when all dolomite grains are not suspended yet. Experimental data were interpreted by relation

Název v anglickém jazyce

Study of influence of reaction temperature and the nitric acid concentration in the reaction with dolomite

Popis výsledku anglicky

In this study dissolution of dolomite in nitric acid was observed. This reaction belongs to a group of heterogenous non-catalytic processes. Study of the reaction was carried out in dilute solutions of nitric acid in concentration range 10 - 100 mol.m-3and temperature range 293 - 333 K. Experiments took place at approximately constant concentration of nitric acid in semibatch isotherm stirring reactor with selected monofraction of dolomite grains (0.4 - 0.5 mm) originated from Vrchlabí area. pH value of solution was measured by pH electrode and it was kept at constant levels during the whole experiment by adding more concentrated nitric acid solution. Gained dependencies show that the reaction course is influenced mainly by temperature and concentration of used batch acid in the range of used reaction conditions. Effect of stirring on reaction course is perceptible at low stirring speed only when all dolomite grains are not suspended yet. Experimental data were interpreted by relation

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

20th International Congress of Chemical and Process Engineering

ISBN

978-80-905035-1-9

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

"P3.44"

Název nakladatele

Orgit, s.r.o.

Místo vydání

Praha

Místo konání akce

Praha, Česká republika

Datum konání akce

25. 8. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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