The large and growing amount of electronic waste (e-waste) caused by the rise of the electronics industry has negatively impacted the environment and secondary resource utilization. Thus, research on the recovery, recycling, and reuse of valuable metals from e-waste has attracted considerable attention. In this study, a novel leaching system based on dicyandiamide ionic liquids (ILs): 1-ethyl-3-methylimidazolium dicyandiamide, 1-butyl-3-methylimidazolium dicyandiamide, and 1-hexyl-3-methylimidazolium dicyandiamide were used to evaluate the effectiveness of leaching gold from typical e-waste CPUs by iodination.

中文翻译：

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基于双氰胺阴离子的环保型离子液体介质，用于通过碘化从电子垃圾 CPU 中浸出金

电子工业的兴起导致电子垃圾（e-waste）数量庞大且不断增加，对环境和二次资源利用产生了负面影响。因此，从电子垃圾中回收、再循环和再利用有价金属的研究引起了相当大的关注。在这项研究中，一种基于双氰胺离子液体 (ILs) 的新型浸出系统：1-乙基-3-甲基咪唑双氰胺、1-丁基-3-甲基咪唑双氰胺和 1-己基-3-甲基咪唑双氰胺被用于评估有效性通过碘化从典型的电子垃圾 CPU 中浸出金。