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in metallurgy, any process of melting or fusion, especially to extract a metal from its ore. Smelting processes vary in detail depending on the nature of the ore and the metal involved, but they are typified in the use of the blast furnaceblast furnace,
structure used chiefly in smelting. The principle involved in this means of extracting metals is that of the reduction of the ores by the action of carbon monoxide, i.e., the removal of oxygen from the metal oxide in order to obtain the metal.
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the process of converting ores, usually metal ores, in smelting furnaces to produce a final product in molten form. Blast-furnace smelting is used in metallurgy for extracting metals from ores. Solid or molten metallic charges are converted by smelting in open-hearth furnaces, electric furnaces, and oxygen-Bessemer furnaces. Ferrous alloys and nonferrous metals are refined by smelting. Other applications of smelting are the production of alloys and the fusion of solid metals for pouring into cast ingots or for making intricate castings. A single cycle of the smelting process, as well as the resulting product is sometimes referred to as a smelt.


The heating of ore mixtures accompanied by a chemical change resulting in liquid metal.
References in periodicals archive ?
The extension of the energy-efficient burner air preheating with an integrated heat exchanger can also be carried out with an existing smelting system, but requires some changes, according to Sauke: "When upgrading existing ZPF systems, in addition to the heat exchanger, a hot gas withdrawal point, suitable piping and temperature-resistant control and butterfly valves must be integrated.
It is envisaged will serve as the supplement and backup power to the Smelting Plant.
One of the biggest potential sustainability benefits of DC smelting technology lies in recycling.
How did Kosaka Smelting and Refining, so far away from the urban areas, get into the ''urban mines'' business?
The testing, estimated to cost $68,000, was done as far as a mile and a half from Mobile Smelting, which is at United Street and Reed Road, about four miles south of Mojave.
The new company will outsource production to Nippon Mining's two smelting plants in Oita and Ibaraki prefectures and Mitsui Mining's smelting subsidiary in Okayama Prefecture, the sources said.
This smelting trip was just one of many I experienced each spring through the 1960's and early 70's when fishing off Stony Point on Lake Ontario's eastern shore.
This joint venture will form a partnership with Nippon Mining and Metals, which has the world's most competitive copper smelting and refining capabilities, to create synergistic effects in various areas such as procurement of raw materials, production, sales and research and development," the spokesman said.
The founder of the Sumitomo family is believed to have started in a copper smelting and crafting business in Kyoto at the end of the sixteenth century.
The company said the testing of the gold smelting process on materials thermally treated at the pilot plant has given rise to the development of a separate smelting step that has resulted in palladium extraction rates significantly higher than previously identified.
The closure of the Pocos smelter permanently removes a high-cost smelting facility from the Alcoa system and is another step in creating a more profitable Primary Metals business," said Alcoa Global Primary Products President Bob Wilt.