Abstract
Iridium is used as a hardening agent in several alloys and as a new-generation catalyst. Therefore, its recycling is a high-priority challenge. The reactions of various tetrafluorobromates MBrF4 (M = K, Rb, Cs) and M′(BrF4)2 (M′ = Ba) with Ir metal were investigated in order to transform the latter to an easily soluble form to facilitate the further recovery of the noble metal. The compositions of the obtained products were determined, corresponding reaction schemes are suggested, and proper conditions for the reactions were established. The reactions of iridium metal with alkali and alkaline earth metals was studied by using X-ray powder diffraction and thermal analyses. The investigations show that the respective hexafluoridoiridates(IV) are obtained.
| Original language | English |
|---|---|
| Pages (from-to) | 4984-4987 |
| Number of pages | 4 |
| Journal | European Journal of Inorganic Chemistry |
| Issue number | 28 |
| DOIs | |
| Publication status | Published - 1 Oct 2013 |
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Keywords
- Alkali metals
- Alkaline earth metals
- Iridium
- Oxidative fluorination
- Tetrafluorobromate
- Thermal analysis
- X-ray diffraction
ASJC Scopus subject areas
- Inorganic Chemistry
Cite this
Tetrafluorobromates for urban mining of noble metals : A case study on iridium metal. / Ivlev, Sergey; Woidy, Patrick; Kraus, Florian; Gerin, Ivan; Ostvald, Roman.
In: European Journal of Inorganic Chemistry, No. 28, 01.10.2013, p. 4984-4987.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Tetrafluorobromates for urban mining of noble metals
T2 - A case study on iridium metal
AU - Ivlev, Sergey
AU - Woidy, Patrick
AU - Kraus, Florian
AU - Gerin, Ivan
AU - Ostvald, Roman
PY - 2013/10/1
Y1 - 2013/10/1
N2 - Iridium is used as a hardening agent in several alloys and as a new-generation catalyst. Therefore, its recycling is a high-priority challenge. The reactions of various tetrafluorobromates MBrF4 (M = K, Rb, Cs) and M′(BrF4)2 (M′ = Ba) with Ir metal were investigated in order to transform the latter to an easily soluble form to facilitate the further recovery of the noble metal. The compositions of the obtained products were determined, corresponding reaction schemes are suggested, and proper conditions for the reactions were established. The reactions of iridium metal with alkali and alkaline earth metals was studied by using X-ray powder diffraction and thermal analyses. The investigations show that the respective hexafluoridoiridates(IV) are obtained.
AB - Iridium is used as a hardening agent in several alloys and as a new-generation catalyst. Therefore, its recycling is a high-priority challenge. The reactions of various tetrafluorobromates MBrF4 (M = K, Rb, Cs) and M′(BrF4)2 (M′ = Ba) with Ir metal were investigated in order to transform the latter to an easily soluble form to facilitate the further recovery of the noble metal. The compositions of the obtained products were determined, corresponding reaction schemes are suggested, and proper conditions for the reactions were established. The reactions of iridium metal with alkali and alkaline earth metals was studied by using X-ray powder diffraction and thermal analyses. The investigations show that the respective hexafluoridoiridates(IV) are obtained.
KW - Alkali metals
KW - Alkaline earth metals
KW - Iridium
KW - Oxidative fluorination
KW - Tetrafluorobromate
KW - Thermal analysis
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=84884877981&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84884877981&partnerID=8YFLogxK
U2 - 10.1002/ejic.201300618
DO - 10.1002/ejic.201300618
M3 - Article
SP - 4984
EP - 4987
JO - Chemische Berichte
JF - Chemische Berichte
SN - 0009-2940
IS - 28
ER -