What mineral group is jarosite?
Sulfate minerals
| Jarosite | |
|---|---|
| Category | Sulfate minerals |
| Formula (repeating unit) | KFe3(SO4)2(OH)6 |
| Strunz classification | 7.BC.10 |
| Dana classification | 30.2.5.1 |
What can jarosite be used for?
Jarosite precipitation is used in hydrometallurgy, especially the zinc industry, to control iron, sulfate and other impurities.
What type of rock is jarosite?
Description: Jarosite occurs as earthy pale yellow to brown coatings, crusts and granular masses formed by the alteration of pyrite, marcasite and other iron sulfides. It is likely much more common in the state than indicated, being likely at most localities listed for pyrite and marcasite.
Where is jarosite mineral found?
Antarctica
Jarosite has been found in the ice cores that were extracted from Antarctica by a team of international researchers recently.
Is jarosite a sulfate?
Mineral Description Jarosite is a potassium iron sulfate mineral of composition KFe3(SO4)2(OH)6 usually derived from the oxidation of pyrite and other Fe-bearing sulfides.
What is jarosite process?
Jarosite Production: The roast-leach-electrowin process for zinc production involves roasting zinc sulphide concentrate to produce calcine containing zinc oxide. The resultant leach liquor contains up to 30 g/L of iron, which is subsequently precipitated by hydrolysis as ammonium jarosite [NH4Fe3(SO4)2OH6].
Why is jarosite waste hazardous?
Jarosite released from zinc metal extraction process is hazardous in nature and its world wide disposal has become a major environmental concern. Jarosite contain higher concentration of toxic elements (lead, zinc, sulphur, cadmium, chromium and copper) than that of CCRs.
Is jarosite a chemical formula?
Jarosite is a basic hydrous sulfate of potassium and iron with a chemical formula of KFe3+ 3(SO4)2(OH)6. This sulfate mineral is formed in ore deposits by the oxidation of iron sulfides.
What is jarosite waste?
Jarosite is a solid waste produced from hydrometallurgy operations involved in the extraction of Zinc. Due to large extraction of zinc worldwide, about 0.60 million tons of jarosite was released annually [2]. Numerous researchers are advocating their studies to explore the chances to reduce and utilize jarosite.