【作者】 李浩然； 冯雅丽； 王云山； 杜竹玮； 欧阳藩； 李佐虎；

【Author】 Li Haoran Feng Yali Wang Yunshan Du Zhuwei Ou Yangfan Li Zuohu (Process Engineering Reserch Institute, the Chinese Academy of Sciences ;University of Science and Technology Beijing)

【机构】 中国科学院过程工程研究所； 北京科技大学；

【摘要】 介绍3种大洋多金属结核的加工方法:三相氧化法、嗜酸异养微生物还原浸出法和异养自养混合微生物耦合浸出大洋多金属结核和硫化矿。阐述了3种方法的浸出机理、浸出条件、工艺流程和试验结果。三相氧化法处理大洋多金属结核实现了产品的系列化和高值化,且体现了清洁生产和再循环的思想。嗜酸异养微生物还原浸出大洋多金属结核,在回收有价金属的同时进行废弃物综合治理。混合微生物耦合浸出大洋多金属结核和硫化矿,既可在生物浸出的同时降解有机污染物,又可将在常温常压无法反应的两种矿,在微生物的催化下使有价金属得以浸出富集。更多还原

【Abstract】 The paper describes three processing methods for marine polymetallic nodules: three-phase oxidatation, bioreduction leaching by acidophilic heterotrophs and coupled leaching by mix of heterotrophs and self-cultivated microcrganisms for marine polymetailic nodules and sulfide ore. The leaching mechanism, leaching conditions, technological flowsheet and test results of the three methods are expounded. Three-phase oxidation can realize the seriation and high value of products in processing marine polymetailic nodules and embodies the concept of clean production and recycling, bioreduction leaching by acidophilic heterotrophs can realize the comprehensive harness of discarded wastes while recovering the valuable metals; and coupled leaching by mixed microorganisms for marine polymetailic nodules and sulfide ore can not only decompose organic pollutants in bioleaching, but also make it possible to leach out the valuable metals by microorganism catalyst from two ores that have no react in atmospheric temperature and pressure.更多还原