Definitions for Smelting
smelt·ing

WiktionaryRate this definition:5.0 / 1 vote

1. smeltingnoun

   The process of melting or fusion, especially to extract a metal from its ore.

WikipediaRate this definition:0.0 / 0 votes

1. Smelting

   Smelting is a process of applying heat to an ore, to extract a base metal. It is a form of extractive metallurgy. It is used to extract many metals from their ores, including silver, iron, copper, and other base metals. Smelting uses heat and a chemical- reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind. The reducing agent is commonly a fossil fuel source of carbon, such as coke—or, in earlier times, charcoal. The oxygen in the ore binds to carbon at high temperatures as the chemical potential energy of the bonds in carbon dioxide (CO2) is lower than the bonds in the ore. The carbon source acts as a chemical reactant to remove oxygen from the ore, yielding the purified metal element as a product. The carbon source is oxidized in two stages. First, carbon (C) combusts with oxygen (O2) in the air to produce carbon monoxide (CO). Second, the carbon monoxide reacts with the ore (e.g. Fe2O3) and removes one of its oxygen atoms, releasing carbon dioxide (CO2). After successive interactions with carbon monoxide, all of the oxygen in the ore will be removed, leaving the raw metal element (e.g. Fe). As most ores are impure, it is often necessary to use flux, such as limestone (or dolomite), to remove the accompanying rock gangue as slag. This calcination reaction also frequently emits carbon dioxide. Smelting most prominently takes place in a blast furnace to produce pig iron, which is converted into steel. Plants for the electrolytic reduction of aluminium are also referred to as aluminium smelters.

Webster DictionaryRate this definition:4.0 / 1 vote

1. Smelting

   of Smelt

2. Smelting

   a. & n. from Smelt

WikidataRate this definition:5.0 / 1 vote

1. Smelting

   Smelting is a form of extractive metallurgy; its main use is to produce a metal from its ore. This includes production of silver, iron, copper and other base metals from their ores. Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gasses or slag and leaving just the metal behind. The reducing agent is commonly a source of carbon such as coke, or in earlier times charcoal. The carbon removes oxygen from the ore, leaving behind elemental metal. The carbon is thus oxidized in two stages, producing first carbon monoxide and then carbon dioxide. As most ores are impure, it is often necessary to use flux, such as limestone, to remove the accompanying rock gangue as slag. Plants for the electrolytic reduction of aluminium are also generally referred to as smelters. These do not melt aluminium oxide but instead dissolve it in aluminium fluoride. They normally use carbon electrodes, but novel smelter designs use electrodes that are not consumed in the process. The end product is molten aluminium.

Anagrams for Smelting »

1. meltings

How to pronounce Smelting?

1. Alex

   US English

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   Mark

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How to say Smelting in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of Smelting in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of Smelting in Pythagorean Numerology is: 9

Examples of Smelting in a Sentence

1. Wood Mackenzie:

   Large smelting capacity for copper, zinc and lead is located in the target area and will need to either upgrade to meet new emission norms or face production curbs, cost pressure will likely increase. Our analysis on copper smelters shows up to 2.6 million tonnes a year capacity could be affected.

2. Joshua Cheng:

   The lead levels found in Brooklyn backyards are often similar to areas where there has been past lead smelting activity, they’re comparable to Superfund sites.

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References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Smelting
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Smelting
3. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/Smelting
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=Smelting