Metallurgy

Metallurgy is the science of extracting metals from ores and refining them for various uses.

Introduction To Metallurgy

Metallurgy involves the extraction of metals from ores and refining them for practical use.

Important Terms

This section introduces critical terms essential for understanding metallurgy, including ore, gangue, flux, and slag.

Steps In The Extraction Of Metals

The extraction of metals involves three critical steps: concentration of the ore, reduction to extract the metal, and refining the metal to achieve purity.

Concentration Of Ore (Ore Dressing)

The concentration of ore involves techniques for separating valuable minerals from gangue, enhancing the efficiency of metal extraction processes.

Extraction Of Metals Based On Reactivity

This section explains how metals are extracted based on their reactivity levels, with processes tailored for highly reactive, moderately reactive, and less reactive metals.

Roasting And Calcination

Roasting and calcination are two crucial processes in metallurgy that involve heating ores under different conditions to extract metals.

Reduction Of Oxides To Metals

This section explores the methods for reducing metal oxides to obtain pure metals by approaches such as carbon reduction, carbon monoxide reduction, and electrolysis.

Extraction Of Aluminium (Important Example)

This section discusses the extraction of aluminium from its ore, bauxite, through electrolysis, a method crucial for understanding metal extraction.

Refining Of Metals

The refining of metals primarily involves electrolytic refining, where impure metals are purified using chemical processes.

Alloys

Alloys are homogeneous mixtures of two or more metals or a metal and a non-metal, created to enhance properties like strength and corrosion resistance.