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溴通过在酸性溶液中形成稳定的络合物来稳定正金(三价金)或亚金离子(一价金)。通常用于该过程的氧化剂是溴,它是一种具有高蒸汽压的腐蚀性液体,这实际上,也是它至今尚未被认可为金的工业氧化剂的主要原因。三价铁离子与过氧化氢和/或次氯酸钠也是一种在含溴水溶液中从旋转盘溶解金的有效氧化荆。在本研究工作中,用旋转盘(Br~-/Fe~(3+)/H_O_2NaC10)试验过的相同系统进行所选四种矿样的初步试验来评价金的溶解。与传统的氰化法相比,仅在一种情况下结果较好。主要障碍似乎是保持适当的电位以使络合物形成。但在某些情况下,与传统的氧化法相比,它可能提供较好的结果。因此进一步的研究似乎是值得做的。
Bromine stabilizes the gold (trivalent) or sub-gold ion (monovalent gold) by forming a stable complex in an acidic solution. The oxidizer commonly used in this process is bromine, which is a corrosive liquid with a high vapor pressure, which is in fact the main reason it has not yet been recognized as gold industrial oxidizer. Ferric ions and hydrogen peroxide and / or sodium hypochlorite are also an effective oxidizing agent that dissolves gold from rotating disks in aqueous bromine solutions. In this work, a preliminary test of four selected ore samples was conducted using the same system as was tested on a rotating disk (Br ~ - / Fe ~ (3 +) / H_O_2NaC10) to evaluate gold dissolution. Compared with the traditional cyanidation method, the result is better in only one case. The main obstacle seems to be to maintain the proper potential for complex formation. However, in some cases, it may provide better results than the traditional oxidation method. So further research seems worth doing.