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含砷金矿通常为难浸提金矿,因而选用经济、环保、有效的除砷预处理方法成为提高金回收提取效率的关键。综述了目前砷金矿预处理方法的优缺点和植物提取及砷转化的研究现状,结合超积累植物蜈蚣草在土壤砷污染植物修复方面的应用,提出了在砷金矿区种植砷超积累植物蜈蚣草来提取去除砷的设想,分析表明,植物预处理方法对于含砷较高的原矿、精矿,以及品位较低的含砷尾矿中的金回收具有广阔的应用前景。
Gold-bearing arsenic is usually difficult to extract gold, so the choice of economical, environmentally friendly and effective arsenic pretreatment methods to improve gold recovery extraction efficiency of the key. In this paper, the advantages and disadvantages of current arsenic gold pretreatment methods and their current status in plant transformation and arsenic transformation are summarized. Based on the application of hypersensitive plant centipede grass in plant arsenic contaminated soil restoration, arsenic hyperaccumulator Pteris vittata to extract the idea of removing arsenic, the analysis shows that plant pretreatment method for the higher arsenic ore, concentrate, and lower grade arsenic tailings gold recovery has broad application prospects.