论文部分内容阅读
本文的目的是要阐明金的浮选回收率与解离的和沉淀的金以及夹杂的贱金属硫化矿、磁黄铁矿、黄铁矿和砷黄铁矿中的金的可浮性的关系。与其它许多研究相反,本研究测定了作为矿石主要部分的每种矿物的浮选回收率。本研究的另一个特点是大部分金与磁黄铁矿伴生,所以,浮选的主要目的在于最大限度地回收磁黄铁矿,这一点与许多类似的浮选实践不同。用定量的XRD(X射线衍射)和诊断浸出法来测定金在主体矿物间的分布以及每种矿物的浮选回收率。用硫酸铜活化,用戊基钾黄药和氮气调整并用空气浮选,达到了最佳硫化矿回收率。当加氧搅拌黄药时出现了单体金的最大回收率。将讨论采用向矿浆加氧和氮的每次试验的含金硫化矿、单体金和难处理金的回收率。
The purpose of this paper is to elucidate the relationship between flotation recovery of gold and the dissociation and precipitation of gold and the buoyancy of gold in the inclusions of base metal sulphide, pyrrhotite, pyrite and arsenopyrite . In contrast to many other studies, this study determined the flotation recovery of each mineral that is a major part of the ore. Another feature of this study is that most of the gold is associated with pyrrhotite. Therefore, the primary purpose of flotation is to maximize the recovery of pyrrhotite, unlike many similar flotation practices. Quantitative XRD (X-ray diffraction) and diagnostic leaching methods were used to determine the distribution of gold between host minerals and flotation recovery for each mineral. Activation with copper sulfate, pentyl potassium xanthate and nitrogen adjustment and air flotation, to achieve the best sulfide recovery. The maximum recovery of monomeric gold appeared when oxygen was mixed with xanthate. The recovery of gold-bearing sulfide ores, monomeric gold and refractory gold for each of the tests using oxygen and nitrogen to the slurry will be discussed.