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Statements

Subject Item
n2:RIV%2F60461373%3A22310%2F02%3A00006563%21RIV%2F2003%2FMSM%2F223103%2FN
rdf:type
skos:Concept n18:Vysledek
dcterms:description
The nitric acid dissolution of apatite is a primary technology operation in combined fertilizer production. For the engineering calculations it is necessary to understand the kinetics of dissolving process. The change of apatite grain structure caused bythe chemical reaction has been studied by the mercury porosimetry method (measuring apparatus PoreSizer 9320, Micromeritics, U.S.). The porosity and the pore size distribution were measured for original and partially reacted samples. From the obtained d ata it follows, that the chemical reaction causes the porosity changes during the nitric acid decomposition of apatite. Apart from the external apatite surface reaction the process is also influenced by the reaction inside grains on the pore walls already during the initial reaction stage. The nitric acid dissolution of apatite is a primary technology operation in combined fertilizer production. For the engineering calculations it is necessary to understand the kinetics of dissolving process. The change of apatite grain structure caused bythe chemical reaction has been studied by the mercury porosimetry method (measuring apparatus PoreSizer 9320, Micromeritics, U.S.). The porosity and the pore size distribution were measured for original and partially reacted samples. From the obtained d ata it follows, that the chemical reaction causes the porosity changes during the nitric acid decomposition of apatite. Apart from the external apatite surface reaction the process is also influenced by the reaction inside grains on the pore walls already during the initial reaction stage.
dcterms:title
The study of the apatite porosity changes during nitric acid dissolution The study of the apatite porosity changes during nitric acid dissolution
skos:prefLabel
The study of the apatite porosity changes during nitric acid dissolution The study of the apatite porosity changes during nitric acid dissolution
skos:notation
RIV/60461373:22310/02:00006563!RIV/2003/MSM/223103/N
n3:aktivita
n14:Z
n3:aktivity
Z(MSM 223100001)
n3:dodaniDat
n9:2003
n3:domaciTvurceVysledku
n8:7589972 n8:5605563
n3:druhVysledku
n4:A
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
665769
n3:idVysledku
RIV/60461373:22310/02:00006563
n3:jazykVysledku
n17:eng
n3:klicovaSlova
apatite; dissolution; changes of porosity; nitric acid
n3:klicoveSlovo
n10:dissolution n10:apatite n10:changes%20of%20porosity n10:nitric%20acid
n3:kodPristupu
n19:L
n3:kontrolniKodProRIV
[8F8AEDA52672]
n3:mistoVydani
Praha
n3:objednatelVyzkumneZpravy
Neuveden
n3:obor
n12:CI
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:rokUplatneniVysledku
n9:2002
n3:tvurceVysledku
Sedlářová, Ivona Vídenský, Jan Plát, Petr
n3:verzeVyzkumneZpravy
Neuveden
n3:zamer
n11:MSM%20223100001
s:numberOfPages
0
n16:organizacniJednotka
22310