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It involves re-melting the metal, which is cheaper and more energy-efficient than the production of virgin aluminium by electrolysis of alumina (Al 2 O 3) refined from raw bauxite by use of the Bayer and Hall–Héroult processes. Recycling scrap aluminium requires only 5% of the energy used to make new aluminium from the raw ore. [2]
Bar with pointed and blunt end. A digging bar is a long, straight metal bar used for various purposes, including as a post hole digger, to break up or loosen hard or compacted materials such as soil, rock, concrete and ice or as a lever to move objects.
Annual production of bauxite in the United States, 1900-2013. Bauxite mining in the United States produced an estimated 128,000 metric tonnes of bauxite in 2013. [1] Although the United States was an important source of bauxite in the early 20th century, it now supplies less than one percent of world bauxite production.
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Canned wine with Iowa 5¢ and Maine 15¢ insignia Cans discarded less than two years after the Oregon Bottle Bill was passed.. California (5¢; for bottles 24 U.S. fl oz (710 mL) or greater, 10¢; boxed wine, wine pouches and cartons 25¢), California Beverage Container Recycling and Litter Reduction Act (AB 2020) implemented in 1987, last revision made January 2024.
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