Thursday, 24 July 2025

Metals: Naturally occurring elements that are typically hard, shiny, and have good electrical and thermal conductivity.

 ๐Ÿ“Œ Metals and Extraction Methods




๐Ÿ“Œ Metals: Naturally occurring elements that are typically hard, shiny, and have good electrical and thermal conductivity.


๐Ÿ“Œ Extraction Methods:

⚙️ Physical Methods:

+ Crushing and Grinding

+ Magnetic Separation

⚙️ Chemical Methods:

+ Roasting: Converting sulphides to oxides

+ Smelting: Reducing oxides to metals (e.g., Iron from Iron ore)

+ Electrolytic Reduction: Used for highly reactive metals (e.g., Aluminum from Bauxite)

+ Hydrometallurgy: Using aqueous solutions to extract metals (e.g., Copper from ore)


๐Ÿ“Œ Examples of Metals and Extraction Methods:

⚙️ Iron (Fe): Smelting of Iron ore (Haematite)

⚙️ Aluminum (Al): Electrolytic reduction of Bauxite

⚙️ Copper (Cu): Smelting and refining of Copper ore

⚙️ Gold (Au): Cyanidation and precipitation

⚙️ Zinc (Zn): Roasting and smelting of Zinc blende (Sphalerite)

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