Lead extraction

Lead extraction

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Credit: GEORGE BERNARD/SCIENCE PHOTO LIBRARY

Caption: Lead extraction. Historical engraving of workers extracting lead from lead ore. The ore (7) is first heated in a furnace (1) to oxidise it, producing lead oxide. This is then heated with coke to purify the lead. Taken from The Laws of Art and Nature, in Knowing, Judging, Assaying, Fining, Refining and Inlarging the Bodies of Confin'd Metals (1683), John Pettus, a translation of the work by Lazarus Erckern.

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Keywords: 1600s, 17th century, adult, apparatus, black-and-white, caucasian, chemical, chemistry, engraving, equipment, extracting, extraction, furnace, furnaces, heating, historical, history, history of science, human, illustration, laboratory, lead, male, man, metallurgy, monochrome, ore, smelting, technology, white, worker

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