- Tytuł:
-
Charakterystyka mineralogiczna faz metalicznych z miedziowych żużli hutniczych Starego Zagłębia Miedziowego
Mineralogical characteristics of metallic phases in copper slags from the Old Copper Basin, Poland - Autorzy:
-
Kądziołka, Katarzyna
Kierczak, Jakub
Pietranik, Anna - Powiązania:
- https://bibliotekanauki.pl/articles/2075970.pdf
- Data publikacji:
- 2019
- Wydawca:
- Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
- Tematy:
-
żużle miedziowe
fazy metaliczne
siarczki
odmieszania
wietrzenie
copper slags
metallic phases
sulphides
exsolutions
weathering - Opis:
- Metallic phases (sulphides, metallic compounds and metals), constitute critical components of metallurgical slags as they concentrate most of the potentially toxic metals occurring within smelting wastes. For this reason, a detailed characterization of the metal-rich phases is crucial for proper estimation of environmental threat resulting from slags deposition. Metallic phases observed in slags were transformed from the original ore minerals during metal smelting, and they constitute an interesting field for observations of sulphides and metals susceptibility to temperature and chemistry changes. In this study, we observed that compositions similar to sulphide minerals (e.g. bornite, chalcocite, pyrrhotite) are common, but they always appear in specific sets. We distinguished 3 general types of metallic phases: copper-iron-sulphur (among which the following subtypes appear: bornite-pyrrhotite, chalcocite, and chalcopyrite, all ofthese with various exsolutions), metallic copper and iron-phosphorous (Fe-P) type. Among all the distinguished types, Fe4Pproved to be most resistant to weathering whereas the Cu-Fe-S assemblage was altered strongly when not surrounded by glass or crystalline phases. Observations revealed that iron-rich metallic phases tended to appear in amorphous slags and copperrich phases occurring within crystalline samples.
- Źródło:
-
Przegląd Geologiczny; 2019, 67; 164--166
0033-2151 - Pojawia się w:
- Przegląd Geologiczny
- Dostawca treści:
- Biblioteka Nauki
Artykuł