Removal of Lead from Brass Scrap by Compound-Separation Method
Removal of Lead from Brass Scrap by Compound-Separation Method
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复合分离法去除黄铜废料中的铅
DOI：
10.2320/jinstmet.69.198
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发表时间：
2005
影响因子：
--
通讯作者：
H. Sueyoshi
中科院分区：
文献类型：
--
作者：
A. Nakano;Kazuya Higashiiriki;N. Rochman;Kosaku Yamada;Kazuto Hamaishi;H. Sueyoshi
到目前为止，铅已被添加到黄铜中以提高其可加工性。然而，由于铅的极端毒性，公众对使用无铅黄铜的需求增加，并执行了限制饮用水供应中允许的铅量的法规。因此，回收黄铜不能被利用，大量的废黄铜将成为工业废物。在本研究中，尝试使用化合物分离法从含2.15质量%铅的黄铜中脱除铅。结果表明，以钙硅化合物作为铅化合物形成的添加剂，以氟化钠为聚集剂时，铅的脱除效率可达83%。
To date, Pb has been added to brass to increase its machinability. Due to the extreme toxicity of Pb, however, the public demand for the use of Pb-free brass has increased and regulations to limit the amount of Pb permitted in drinking water supplies have been enforced. Therefore, recycling brass cannot be utilized and a large amount of scrap brass will become industrial waste. In the present study, the use of the compound-separation method is attempted for the removal of Pb from brass containing 2.15 mass%Pb. The result shows that Pb removal was effective up to 83% when using a Ca-Si compound as an addition agent for Pb-compound formation and NaF as an aggregation agent.