论文部分内容阅读
MinataurTM法(Mintek法精炼金的替代技术)是一种采用溶剂萃取技术生产高纯金的新工艺。该工艺经中间工厂试验成功地证实之后,一座24t/a的工业生产厂已在弗里州弗吉尼亚的Harmo-ny金矿投入运行。这种方法的工业应用不仅代表了金精炼技术的明显进步,而且也有助于推进南非在黄金市场合理调整方面的重要变革。从中间工厂生产的金含量变化很大的产品中,经精炼得到纯度为99.99%或99.999%的金。该工艺过程的构成为:固体物料的氧化浸出,从浸出液中选择性溶剂萃取金,去除杂质和高纯金粉的沉淀。本文对该工艺做了概述,介绍了从精炼银的阳极泥和电积金的阴极淤渣中以5kg/d产量生产高纯金的两个中间工厂试验的选择性结果,并提出了一些有关经济效益方面的资料。
The MinataurTM method (an alternative to Mintek’s refined gold) is a new process for producing high-purity gold using solvent extraction. A 24 t / a industrial plant has been put into operation at the Harmo-ny Gold Mine in Virginia, Frisé, after the process was successfully demonstrated by the pilot plant trial. The industrial application of this method not only represents a significant advance in gold refining technology, but it also helps to advance South Africa’s important changes in the rational adjustment of the gold market. From refined products of very large gold content from intermediate plants, refined gold yields 99.99% or 99.999% purity. The process comprises the following steps: oxidizing leaching of a solid material, extracting gold from a selective solvent in the leachate to remove impurities and precipitating high-purity gold powder. This paper presents an overview of the process and presents the selective results of two pilot plant trials of 5 kg / d of high purity gold from the anode sludge of refined silver and the cathode sludge of electrowinsel, and presents some relevant economic benefits Information