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Statements

Subject Item
n2:RIV%2F60461373%3A22310%2F02%3A00006563%21RIV%2F2004%2FMSM%2F223104%2FN
rdf:type
skos:Concept n15: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/2004/MSM/223104/N
n4:aktivita
n8:Z
n4:aktivity
Z(MSM 223100001)
n4:dodaniDat
n13:2004
n4:domaciTvurceVysledku
n12:5605563 n12:7589972
n4:druhVysledku
n20:A
n4:duvernostUdaju
n11:S
n4:entitaPredkladatele
n10:predkladatel
n4:idSjednocenehoVysledku
665768
n4:idVysledku
RIV/60461373:22310/02:00006563
n4:jazykVysledku
n16:eng
n4:klicovaSlova
apatite; dissolution; changes of porosity; nitric acid
n4:klicoveSlovo
n6:dissolution n6:nitric%20acid n6:changes%20of%20porosity n6:apatite
n4:kodPristupu
n9:L
n4:kontrolniKodProRIV
[4294AF68F155]
n4:mistoVydani
Praha
n4:nosic
80-86059-33-2
n4:objednatelVyzkumneZpravy
Magic WARE Ltd.
n4:obor
n19:CI
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
3
n4:pocetUcastnikuAkce
0
n4:pocetZahranicnichUcastnikuAkce
0
n4:rokUplatneniVysledku
n13:2002
n4:tvurceVysledku
Plát, Petr Vídenský, Jan Sedlářová, Ivona
n4:verzeVyzkumneZpravy
1
n4:zamer
n17:MSM%20223100001
s:numberOfPages
0
n14:isbn
80-86059-33-2
n7:organizacniJednotka
22310