Vliv dusičnanu vápenatého kyseliny fosforečné na rozklad apatitu kola kyselinou dusičnou

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F04%3A00011771" target="_blank" >RIV/60461373:22310/04:00011771 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The effect of calcium nitrate and phosphoric acid as reaction products to the course of decomposition of kola super apatite by nitric acid

Popis výsledku v původním jazyce

Natural phosphates are initial raw material for manufacturing of the phosphoric compounds. One process of their treatment exploits their decomposition by nitric acid. It is primary technological operation in combined NPK fertilizers producing. Increasingconsumption of phosphoric raw materials, their high price and gradual exhausting superior deposits bring decisive claim to their maximum exploitation. For optimizing of existing devices or designing new ones the knowledge of the reaction process kinetics that is not still explained in wide reaction conditions is necessary. This work concerns with reaction products effect to the course of Kola super apatite dissolution in nitric acid.All experiments were carried out in isothermal mixed batch reactor forthe initial phase of the decomposition with close fraction of apatite particles. The solution of nitric acid with addition of phosphoric acid or calcium nitrate was used for the decomposition in such excess that its concentration practic

Název v anglickém jazyce

The effect of calcium nitrate and phosphoric acid as reaction products to the course of decomposition of kola super apatite by nitric acid

Popis výsledku anglicky

Natural phosphates are initial raw material for manufacturing of the phosphoric compounds. One process of their treatment exploits their decomposition by nitric acid. It is primary technological operation in combined NPK fertilizers producing. Increasingconsumption of phosphoric raw materials, their high price and gradual exhausting superior deposits bring decisive claim to their maximum exploitation. For optimizing of existing devices or designing new ones the knowledge of the reaction process kinetics that is not still explained in wide reaction conditions is necessary. This work concerns with reaction products effect to the course of Kola super apatite dissolution in nitric acid.All experiments were carried out in isothermal mixed batch reactor forthe initial phase of the decomposition with close fraction of apatite particles. The solution of nitric acid with addition of phosphoric acid or calcium nitrate was used for the decomposition in such excess that its concentration practic

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

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings 16th International Congress of Chemical and Process Engineering CHISA 2004

ISBN

80-86059-40-5

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

1-4

Název nakladatele

CHISA

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

22. 8. 2004

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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