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Removal of antimony from lead--two per cent antimony alloy.
Secondary Raw Materials 1971 May; 9(5):71-74
One of the programs being undertaken by the College Park Metallurgy Research Center of the Bureau of Mines involves developing new methods and improving existing methods for recycling secondary scrap and waste materials. A refining technique that received considerable attention in these studies is the use of high-melting- point intermetallic compounds to remove small amounts of undesirable impurities from base metal scrap. Once the compound has been formed, separation from the base metal can be achieved by decanting, skimming, or filtering. This article describes a technique for removing antimony from lead by forming an insoluble aluminum- antimony intermetallic compound.
Issue of Publication
Secondary Raw Materials
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division