用离子交换方法制备了铜交换的分子筛，研究了将二价铜还原为一价铜的方法。
Cupric ion exchanged NaY zeolite was prepared. The method to reduce cupric into cuprous exchanged zeolite was studied.
探讨了利用原化学镀铜废液中的甲醛将铜还原，后酸化回收EDTA的新工艺。
Copper was reduced by formaldehyde which was contained in the effluent of chemical copper plating, and EDTA in the effluent was reclaimed after acidify.
Thiol-SAMMS也能还原像铜和金这样的贵重金属。 研究人员现在正试图用其他原子代替硫，如此一来这种粉末就能去除放射性废弃物了。
Thiol-SAMMS can also recover precious metals such as copper and gold, and researchers are now switching out the sulfur for other atoms so that it could mop up radioactive waste.
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