| Summary: | In recent years, the process of anion/cation membrane electrodialysis to produce nanomaterials and bipolar membrane electrodialysis to produce acid has the advantages of greenness, energy saving, high efficiency, significant industrial application value, and environmental benefits. It has aroused the extensive interest of many scholars and production enterprises and has become a hot spot of current research. In this paper, for the first time, we innovatively proposed the preparation of copper-ammonia complex ions and dilute hydrochloric acid by the three-component electroconversion method (TCM). With the help of bipolar membrane and anion/cation membrane, a new three-component electrolyzer was designed and a cycle experiment process was designed, which greatly improved environmental problems and reduced production costs. We achieve sustainable copper ammonia fibre (CAF) production through continuous power supply and feedstock addition. Further, we combine wastewater treatment with electroconversion to produce four value-added products H2, O2, dilute sulfuric acid, Cu(OH)2, and Cu2(OH)2SO4. Meanwhile, this paper points out the opportunities and challenges faced by the large-scale application of TCEM in the production of acid, nano-metal materials, and metal complexes, in order to promote the promotion and application of the technology and the improvement of related production processes.
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