深海锰结核液相氧化动力学  

Kinetics of Liquid-phase Oxidation for Deep-sea Manganese Nodules

作　　者：王云山[1] 李佐虎[1] 李浩然[1] 

机构地区：[1]中国科学院过程工程研究所生化工程国家重点实验室,北京100080

出　　处：《有色金属》2006年第2期60-63,共4页Nonferrous Metals

基　　金：国家长远发展专项(DY105-04-01)

摘　　要：通过考察反应时间、反应温度以及氧分压对深海锰结核中锰的氧化的影响,研究深海锰结核在高浓氢氧化钾介质中的液相氧化宏观动力学。结果表明,在试验条件下,结核中锰的氧化反应符合未反应核收缩模型,表观活化能为53.26kJ/mol,反应受界面化学反应控制。The liquid-phase oxidation kinetics of deep-sea manganese nodules in high concentration potassium hydroxide medium is investigated by the effects of factors on the conversion rate of manganese in the deep-sea manganese nodules such as reaction time, reaction temperature as well as oxygen partial pressure. The experimental results indicate that liquid-phase oxidation reaction of manganese nodules can be described by non-reaction core shrinking model. The oxidation reaction process with apparent activation energy of 53.26kJ/mol, is under control of interface chemical reaction.

关 键 词：冶金技术 深海锰结核 液相氧化 动力学 

分 类 号：TF111.31[冶金工程—冶金物理化学] TF803.21