What is the primary method used to extract aluminum from its ore, bauxite?

What is the primary method used to extract aluminum from its ore, bauxite?

Step 1: Bauxite ore is mined from the ground.
Step 2: The bauxite is crushed and mixed with a hot, caustic soda solution.
Step 3: This mixture is heated under pressure, which helps to dissolve the aluminum oxide in the bauxite.
Step 4: The solution is allowed to settle, separating the undissolved impurities from the aluminum oxide solution.
Step 5: The aluminum oxide (alumina) is then extracted from the solution.
Step 6: The alumina is then subjected to electrolysis, where an electric current is passed through it.
Step 7: During electrolysis, aluminum metal is produced and collected at the bottom of the cell.

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