项目名称: 化学场强化亚熔盐法低价两性金属氧化物高效氧化溶出基础研究
项目编号: No.51274178
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 矿业工程
项目作者: 杜浩
作者单位: 中国科学院过程工程研究所
项目金额: 80万元
中文摘要: 亚熔盐介质是一种可以高效氧化分解低价两性金属氧化物的新化学介质,其高反应活性的核心是介质中大量稳定存在的活性氧对矿物的催化氧化作用,因此对介质反应活性的调节可以通过对活性氧的量化调控实现。本项目以亚熔盐介质中活性氧的量化调控为目标,以电化学强化为手段,采用多学科交叉、多种研究手段集成的研究方法,通过对介质中活性氧生成机理、赋存规律及调控规律,活性氧催化氧化两性金属矿物机理及调控规律,电化学催化氧化两性金属矿物机理及调控规律等具体科学问题的研究,建立亚熔盐介质活性氧电化学量化调控规律,形成具有应用前景的电化学场强化亚熔盐法低价两性金属氧化物高效氧化溶出化学冶金新技术,为亚熔盐平台技术的产业化推广应用提供科学依据。
中文关键词: 活性氧;亚熔盐;碱性体系;两性金属;电解
英文摘要: Sub molten salt (SMS) is a novel reaction media, which is highly efficient to treat amphoteric ores. The reactivity of such media is dependent on the reactivity of reactive oxygen species (ROS) in the media, and thus the optimization of SMS reaction system can be achieved by controlling the reactivity of ROS quantitatively. In this study, by systematic investigation of the formation mechanisms, existence states, and controlling methodologies; the oxidation mechanisms of typical amphoteric oxide by ROS and the oxidation controlling strategies; the mechanisms of electrochemical oxidation of typical amphoteric oxide in SMS and the reaction controlling principles, a new method based on electrochemically strengthened SMS system to efficiently treat amphoteric oxides will be established. The results from this research will provide fundamentals for the development of the SMS technology, and be significantly beneficial for the promotion SMS reaction platform.
英文关键词: reactive oxygen species;sub-molten salt;alkaline solution;amphoteric metal;electrolysis