About 222,000 results
Open links in new tab
  1. Smelting - Encyclopedia.com

    May 9, 2018 · Smelting is the process of separating the metal from impurities by heating the concentrate to a high temperature to cause the metal to melt. Smelting the concentrate …

  2. Metallurgy through the Ages - Encyclopedia.com

    Metallurgy through the Ages Overview Over a period of thousands of years, humans learned to identify, extract, blend, and shape metals into tools, ornaments, and weapons. The ability of …

  3. Abraham Darby - Encyclopedia.com

    May 29, 2018 · Abraham Darby Abraham Darby (1677-1717) developed the coke burning blast furnace that made it possible to produce commercial grade iron cost-effectively. His work …

  4. Daniel Guggenheim - Encyclopedia.com

    May 18, 2018 · Guggenheim, Daniel (1856-1930) American Smelting and Refining Company Overview Daniel Guggenheim was one of America's most powerful business leaders as well …

  5. Iron Mining and Metallurgy - Encyclopedia.com

    Interest in locating deposits of iron, extracting the ore, smelting it, and refining it was evident in the earliest permanent settlements. Source for information on Iron Mining and Metallurgy: …

  6. Origins of Iron Production - Encyclopedia.com

    These slags uniformly suggest smelting temperatures of 1,100–1,200°C (2,000–2,200°F), consistent with the type of simple furnace excavated. Tools—hammers, tongs, and anvils …

  7. Archaeometallurgy - Encyclopedia.com

    Archaeometallurgists reconstruct ancient smelting (ore-melting) furnaces; conduct experiments; and analyze metals and slag (the glassy residue left by smelting). It is a misconception that …

  8. Timna - Encyclopedia.com

    The Chalcolithic copper smelting furnace excavated on the fringes of the Arabah, east of the modern Timna copper mines, is the earliest smelting installation so far found. The next …

  9. Lead Industry - Encyclopedia.com

    LEAD INDUSTRYLEAD INDUSTRY first became commercially important to the United States in 1750 when sustained lead mining and smelting began in Dutchess County, New York, and at …

  10. Agricola, Georgius - Encyclopedia.com

    Jun 8, 2018 · AGRICOLA REDISCOVERED BY HERBERT HOOVER A gricola's De Re Metallica remained widely read and used by European miners and metallurgists, appearing in many …