【摘要】 基于植物采矿的理念,利用镍超富集植物将低品位红土镍矿或镍污染土壤中的镍吸收并转运到植物的地上部分,而后将收获的镍超富集植物视为镍资源的二次来源,经由焚烧镍超富集植物获得w(镍)约20%的"高镍生物矿砂"。通过综述镍超富集植物吸收转运镍的机理、种植镍超富集植物的农艺调控研究,以及现有的从镍超富集植物或"高镍生物矿砂"中制备纯镍、易斯酸催化剂、六水硫酸镍铵以及镍纳米材料工艺技术等,展望今后可能的"绿色冶镍"研究方向。期望在使用镍超富集植物修复环境镍污染,降低环境中镍对人类和其它生物的潜在危害的同时,开发新型的"绿色冶镍"技术,缓解我国镍资源紧缺的重要问题。更多还原

【Abstract】 Based on the concept of phytomining,the nickel hyperaccumulator could be employed to absorb nickel from the low grade laterite nickel ore or nickel-polluted soil and transport nickel to the aerial parts of the plant,and the harvested nickel hyperaccumulators are considered as secondary nickel-rich resources.Then nickel-rich bio-ore with nickel concentration roughly 20% can be obtained via incineration.By reviewing the mechanism of nickel-rich hyperaccumulators to transport nickel transport,the agronomic control of planting nickel-rich hyperaccumulators,and the existing methods of producing pure nickel,lewis acid catalyst,nickel sulfate hexahydrate and nickel nano-materials from harvested nickel hyperaccumulators or nickel-rich bio-ore,this paper proposes the prospects of the possible "Green Metallurgical Nickel" research trend.It is expected to use nickel hyperaccumulator to repair nickel environmental pollution,to reduce nickel hazards to humans and other organisms and develop a new type of"green nickel-smelting"technologies to alleviate the shortage of Chinese nickel resources.更多还原