Daily Activities

UPSC Prelims Current Affairs

UPSC Mains Current Affairs

Current Affairs

Page-32 of Archives: May, 2026

Alloying

Alloying is a primary metallurgical technique that involves creating a solid homogeneous mixture (solution) composed of two or more chemical elements, where at least one is a metal....

 May 26, 2026

Extraction of Metals

The extraction of metals from their concentrated ores involves reducing metal ions into neutral metal atoms. This process is governed by the principles of chemical thermodynamics, specifically the...

 May 26, 2026

Flux and Slag

During the smelting phase of extractive metallurgy, concentrated metal oxides are melted down to isolate free elemental metals. However, the raw ore still contains high-melting, non-metallic, rocky impurities...

 May 26, 2026

Smelting

Smelting is a key pyrometallurgical process that goes beyond simple thermal roasting or calcination. It involves heating a metal oxide ore past its melting point with a chemical...

 May 26, 2026

Roasting and Calcination

In extractive metallurgy, after raw ore undergoes dressing and beneficiation, it must be reduced to its free elemental metal. However, directly reducing naturally occurring metal sulfides or metal...

 May 26, 2026

Ore Dressing

Ore dressing—also known as ore beneficiation, ore classification, or mineral processing—is the initial stage in extractive metallurgy. It involves separating valuable ore minerals from worthless rocky, earthy, or...

 May 26, 2026

Metallurgy

Metallurgy is the branch of science and technology concerned with the properties of metals and their production and purification. It bridges geology and industrial chemistry, focusing on the...

 May 26, 2026

Important Ores and Metals

In metallurgical chemistry, extracting a pure metal from the Earth's crust requires identifying and isolating its most economically viable ore. While a metal may exist in dozens of...

 May 26, 2026

Minerals and Ores

In extractive metallurgy, understanding the transition of a metal from the Earth's crust to its pure form requires a strict distinction between minerals and ores. Minerals: Naturally occurring...

 May 26, 2026

Galvanized Iron

Galvanized Iron (GI) is steel or iron that has been coated with a thin protective layer of zinc. In metallurgy, this is one of the most widely used...

 May 26, 2026

Archives