a metal m form the sulphide Ore explain the step of extracting the metal from its Ore and its purification with well labelled diagram.
Answers
Answer:Extraction of Nickel and Cobalt from Sulphide Ores
Sulphide ores were mostly created by (i) the intrusion of molten magma from the mantle into the crust of the earth and (ii) the formation of localized metal-rich sulphide ore bodies by sequential solidification and/or hydrothermal leaching and precipitation.
The source of the sulphur in these ore bodies is either from the magma itself or from the pre-existing rock where it was present as sulphate.
The most common nickel mineral in these ores is pentlandite, (Ni,Fe)9S8. The atomic ratio of nickel to iron in pentlandite ranges between 0.34 and 2.45. Most often, though, it is about 1.15. Common minerals that accompany pentlandite are pyrrhotite, Fe8S9, and chalcopyrite, CuFeS2. Cobalt and platinum-group elements are also present, either dissolved in the pentlandite or present as distinct minerals.
Sulphide ores that are mined for nickel and cobalt typically contain 1.5%–3% Ni and 0.05%–0.1% Co.
Concentration, Smelting and Converting to Matte
The sulphide ores are concentrated, smelted and converted to metal-rich matte. A schematic diagram of this process is shown in Figure 1.6. The processing steps are as follows:
For image go to https://ars.els-cdn.com/content/image/3-s2.0-B9780080968094100012-f01-06-9780080968094.jpg?_
Explanation:
Answer:
Explanation:
Answer:Extraction of Nickel and Cobalt from Sulphide Ores
Sulphide ores were mostly created by (i) the intrusion of molten magma from the mantle into the crust of the earth and (ii) the formation of localized metal-rich sulphide ore bodies by sequential solidification and/or hydrothermal leaching and precipitation.
The source of the sulphur in these ore bodies is either from the magma itself or from the pre-existing rock where it was present as sulphate.
The most common nickel mineral in these ores is pentlandite, (Ni,Fe)9S8. The atomic ratio of nickel to iron in pentlandite ranges between 0.34 and 2.45. Most often, though, it is about 1.15. Common minerals that accompany pentlandite are pyrrhotite, Fe8S9, and chalcopyrite, CuFeS2. Cobalt and platinum-group elements are also present, either dissolved in the pentlandite or present as distinct minerals.
Sulphide ores that are mined for nickel and cobalt typically contain 1.5%–3% Ni and 0.05%–0.1% Co.
Concentration, Smelting and Converting to Matte
The sulphide ores are concentrated, smelted and converted to metal-rich matte. A schematic diagram of this process is shown in Figure 1.6. The processing steps are as follows:
For image go to https://ars.els-cdn.com/content/image/3-s2.0-B9780080968094100012-f01-06-9780080968094.jpg?_
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