碱性介质活性氧调控技术在湿法冶金中的研究进展

化工冶金制造业的绿色化升级需从清洁生产技术创新入手，研发重大特色资源的高效绿色合理利用技术是实现资源环境可持续发展的关键。张懿院士开创建立的亚熔盐介质清洁化工冶金共性技术，实现了多种具有化学共性的难处理两性金属矿物的高效清洁转化与分离，并建立了以活性氧调控技术为核心的亚熔盐介质化学理论体系。基于活性氧的电化学基础研究，本工作进一步提出了以电化学活性氧调控技术为核心的碱性介质电化学高级氧化新体系，为活性氧调控技术在冶金、资源和环境等领域的应用提供理论和技术支持。

Research progress on alkaline media reactive oxygen species tuning technique in hydrometallurgy

The green upgrade of the chemical metallurgy manufacturing industry needs to start from the innovation of cleaner production technology. Research and development of efficient, green and reasonable utilization of major characteristic resources are the keys to realizing the sustainable development of resources and environment. Cleaner production is the best pattern of pollution preventing and the only way to achieve sustainable development and recycling economy. The sub-molten salt media clean chemical metallurgical generic technology created by Professor Yi Zhang, academician of Chinese Academy of Engineering (CAE), has realized the efficient clean conversion and separation of refractory amphoteric metal minerals with chemical commonality (including Al, Cr, V, Ti, Mn, Nb, Ta, etc.). Reactive oxygen species have been considered as the key factor to realize the efficient conversion of amphoteric metal mineral resources. The sub-molten salt media chemical system with the reactive oxygen species tuning as the core technology was established. The reactive oxygen species tuning strategy in the sub-molten salt media is summarized into five methods, including chemical field enhancement, flow field enhancement, pressure field enhancement, additive enhancement, and microbubble enhancement. All the above methods can be applied to strengthen the decomposition of amphoteric metal mineral resources and decrease the reaction conditions. Till now, the sub-molten salt technology has been successfully applied to the treatment of vanadium titano-magnetite, chromite, diasporic bauxite, tantalum-niobium ores, and high-alumina fly ash. Furthermore, as a feasible, efficient, easy operation and environment-friendly method, electrochemistry plays a vital role in various fields including metallurgy, chemical engineering, and catalysis. Based on the basic research of reactive oxygen species by electrochemical method in our group, novel alkaline electrochemical advanced oxidation processes with electrochemical reactive oxygen species tuning technology were proposed, which provides theoretical and technical support for the application of the reactive oxygen species tuning technology in metallurgy, resources and environment fields.