Smelting furnace

{
  "id": "MLC-T-ENV-025854",
  "term": "Smelting furnace",
  "field": "Environment",
  "term_source": "Smelting Furnace",
  "definition": "1. Any vessel in which the smelting of copper sulfide ore concentrates or calcines is performed and in which the heat necessary for smelting is provided by an electric current, rapid oxidation of a portion of the sulfur contained in the concentrate as it passes through an oxidizing atmosphere, or the combustion of a fossil fuel.\n\n2. Furnace, reactor, or other type of vessel in which copper ore concentrate and fluxes are melted to form a molten mass of material containing copper matte and slag. Other copper-bearing materials may also be charged to the smelting furnace.\n\n3. Any furnace, reactor, or other type of vessel in which copper scrap and fluxes are melted to form a molten mass of material containing copper and slag.\n\n4. Furnace in which lead-bearing materials, carbon-containing reducing agents, and fluxes are melted together to form a molten mass of material containing lead and slag.",
  "subject": "Built environments",
  "references": [
    "40 CFR 60.161 (CFR 2013)",
    "40 CFR 63.1459 (CFR 2013)",
    "40 CFR 63.11158 (CFR 2013)",
    "40 CFR 98.6 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/smelting-furnace/"
}