umu.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Characterization of Double Leached Waelz Oxide for Identification of Fluoride Mineral
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Kemiska institutionen.
Visa övriga samt affilieringar
2019 (Engelska)Ingår i: Metals, ISSN 2075-4701, Vol. 9, nr 3, artikel-id 361Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Double leached Waelz oxide (DLWO), with 76% zinc, is a secondary zinc containing raw materials obtained by the treatment of electric arc furnace dust. The content of fluoride in DLWO is still too high for direct leaching, as fluoride has a detrimental effect on electrowinning for zinc production. Knowledge of the characteristics of DLWO, and especially on how a fluoride mineral might exist, can contribute to further improvement of the selective leaching for the removal of fluoride. In this study, DLWO was characterized using analytical techniques, such as inductively coupled plasma-optical emission spectroscopy (ICP-OES), F-19 liquid-state nuclear magnetic resonance (F-19 LS NMR), X-ray powder diffraction analysis (XRD), scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS) and F-19 solid-state nuclear magnetic resonance (F-19 SS NMR). This study showed that DLWO mainly consisted of zincite (ZnO), cerussite (PbCO3) and a spinel containing zinc, iron and manganese. The fluoride mineral identified was calcium fluoride (CaF2). In SEM analysis, fluorine was found in larger grains together with calcium and oxygen, which was possibly calcium carbonate.

Ort, förlag, år, upplaga, sidor
MDPI, 2019. Vol. 9, nr 3, artikel-id 361
Nyckelord [en]
metal recycling, zinc secondary dust material, characterization of double leached Waelz oxide, halogens, fluoride identification
Nationell ämneskategori
Metallurgi och metalliska material Geokemi
Identifikatorer
URN: urn:nbn:se:umu:diva-158593DOI: 10.3390/met9030361ISI: 000464321200002OAI: oai:DiVA.org:umu-158593DiVA, id: diva2:1318335
Tillgänglig från: 2019-05-27 Skapad: 2019-05-27 Senast uppdaterad: 2019-05-27Bibliografiskt granskad

Open Access i DiVA

fulltext(2211 kB)60 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 2211 kBChecksumma SHA-512
2c12564c36cc076adb6c58e234d64debd3d01fbcef0bf829b2da0f36a3dc211ac150d1752ef371999f4225944138f0bcb62b434d119cbf0f6bf11b8f77f50034
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltext

Personposter BETA

Sparrman, Tobias

Sök vidare i DiVA

Av författaren/redaktören
Sparrman, Tobias
Av organisationen
Kemiska institutionen
Metallurgi och metalliska materialGeokemi

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 60 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 192 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf