In recent years, waste mobile phones have become popular as electronic waste due to the huge amount, serious pollution with improper disposal and high resource value. It is imperative to realize the recycling of resources in waste mobile phones. The application of emulsion liquid membrane in the recovery of gold and synthesis of nanomaterials from waste mobile phone printed circuit boards (WMPCBs) was studied. The components of the emulsion liquid membrane, effects of 7 factors on the extraction rate and the morphology of the synthesized nanomaterials were explored. The results show that it is possible to extract 99.79% of Au(III) from WMPCBs leachate with kerosene as diluent, Span80 as surfactant, methyl isobutyl ketone(MIBK) as carrier, ascorbic acid solution as stripping agent and liquid paraffin as membrane stabilizer. The external phase pH and the internal phase concentration had a greater influence on the extraction efficiency of Au(III) among 7 factors. The morphology of the synthesized product was affected by the concentration and type of the surfactant. It provides a new idea to connect recovery from waste with deep processing, extending the waste mobile phone recycling process chain and achieving high-value utilization of waste mobile phone secondary metal resource products.

近年来，废手机由于数量庞大，污染严重，处置不当和资源价值高等问题，已成为电子废物。必须实现废旧手机资源的回收。研究了乳状液膜在废手机印刷电路板中金的回收和纳米材料的合成中的应用。探讨了乳化液膜的组成，7个因素对提取率的影响以及合成纳米材料的形貌。结果表明，以煤油为稀释剂，Span80为表面活性剂，甲基异丁基酮（MIBK）为载体，抗坏血酸溶液为脱模剂，液体石蜡为膜稳定剂，可以从WMPCBs渗滤液中提取99.79％的Au（III）。在7个因素中，外相pH和内相浓度对Au（III）萃取效率的影响更大。合成产物的形态受表面活性剂的浓度和类型影响。它提供了一种新思路，将废料回收与深度处理联系起来，扩展了废手机回收流程链，实现了废手机二次金属资源产品的高价值利用。