Enrichment of ore

Before extracting the metal from an ore, it is necessary to remove the impurities present in it. By removing these impurities we get a concentrated ore which contains a high percentage of metal in it. The process of removal of gangue particles from ore to increase the...

Metallurgy

Metallurgy is the process of obtaining metals from ores. It may be defined as the processes which are involved in the extraction of metals from their ores and then refining them for use are known as metallurgy. Steps of Metallurgy: Metals can be extracted from their...

Minerals and ores

Minerals Minerals are the inorganic elements or compounds which are found naturally in earth’s crust. Some minerals contain a high percentage of the particular metal and the metal can be extracted from them. Minerals may or may not contain objectionable impurities....

Occurrence of metals in nature

Almost all metals are found in the crust of the earth. Some metals are also found in the form of salts in seawater. The most abundant metal present in earth’s crust is Aluminium. The relative abundance of some important metal in the crust of the earth is as follows:...

Activity series of metals

All metals are not equally reactive. Some metals are more reactive than others. The arrangement of metals in the order of their decreasing reactivities is called the reactivity series or activity series of metals. See table. As potassium metal is present at the top of...