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首页> 外文会议>International Conference on Waste Management and Technology >Leaching of copper from metal powders mechanically separated from waste printed circuit boards in chloride media using hydrogen peroxide as oxidant
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Leaching of copper from metal powders mechanically separated from waste printed circuit boards in chloride media using hydrogen peroxide as oxidant

机译：使用作为氧化剂的过氧化氢，从金属粉末从金属粉末机械分离的金属粉末从废印刷电路板机械分离

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The dissolution of copper from waste printed circuit boards in chloride media using hydrogen peroxide as oxidant was carried out. The effects of stirring speed, temperature, solid/liquid ratio and concentrations of HCl and H2O2 on the leaching of copper were investigated. The copper extraction increased significantly with the increase of HCl concentration. H~+ and Cl~- ions both improved the leaching of copper from waste printed circuit boards and had the synergetic effect on copper dissolution. The H2O2 was the main reagent which made possible the leaching of metallic copper from waste printed circuit boards in acidic chloride solutions. The copper extraction also increased with the increase of stirring speed, temperature and solid/liquid ratio. Finally, a reaction mechanism was proposed as well.
机译：采用作为氧化剂的氯化物介质中的废印刷电路板溶解来自废纸介质中的溶解。 研究了搅拌速度，温度，固体/液体比和HCl和H 2 O 2对铜浸出的效果。 随着HCl浓度的增加，铜提取显着增加。 H〜+和Cl〜离子都改进了废物印刷电路板铜的浸出，并对铜溶出度进行了协同作用。 H 2 O 2是主要试剂，其使得从酸性氯化物溶液中的废印刷电路板中可能浸出金属铜。 随着搅拌速度，温度和固体/液体比率的增加，铜提取也增加。 最后，提出了一种反应机理。

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