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Tin and alkalli chlorides conversion into phosphates and their vitrification into silicate glasses

hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorBEKAERT, Emilie
hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorMONTAGNE, Lionel
hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorDELEVOYE, Laurent
hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorPALAVIT, Gérard
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorWATTIAUX, Alain
hal.structure.identifierAgence de l'Environnement et de la Maîtrise de l'Energie [ADEME]
dc.contributor.authorKUNEGEL, André
dc.date.issued2006
dc.identifier.issn0022-3093
dc.description.abstractEnMixtures of tin(II) chloride and tin(II)-sodium–potassium chlorides were converted into phosphate salts by reaction with ammonium dihydrogen-phosphate at 400 °C. Element analyses showed that no loss occurred during the treatment, and Mössbauer and wet analyses indicated no change in tin valence. The converted tin phosphate and tin–sodium–potassium phosphates were then dissolved into silicate glasses at 1350 °C without loss. Structural analyses were realized with 31P, 29Si, 119Sn NMR and 119Sn Mössbauer, which revealed a complete dissociation of tin phosphate into the silicates. Phosphate units consisted in ortho- and pyro-phosphates. Tin(II) was partially oxidized into tin(IV), but there was no evidence for a phase separation into SnO2 or SnP2O7, tin being mainly bonded to silicate units. These results are discussed in terms of O2− exchange between phosphate and silicate units during the melting process.
dc.language.isoen
dc.publisherElsevier
dc.subject.enGlasses
dc.subject.enNuclear magnetic (and quadrupole) resonance
dc.subject.enNuclear and chemical wastes
dc.subject.enPhosphates
dc.subject.enNMR
dc.subject.enMAS-NMR and NQR
dc.title.enTin and alkalli chlorides conversion into phosphates and their vitrification into silicate glasses
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jnoncrysol.2006.06.007
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Non-Crystalline Solids
bordeaux.page4112
bordeaux.volume352
bordeaux.peerReviewedoui
hal.identifierhal-00102096
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00102096v1
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