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所研究矿石含金6.2克/吨,含银268克/吨。Cu、Pb、Zn均具回收价值。主要矿物成分是碳酸盐(70%)、硅酸盐(约20%)和硫化物(约10%)。金的矿物有自然金、银金矿及少量金铜矿、铜银矿和含铜金银矿。其粒度小于10微米的约占90%以上。经原子吸收光谱分析、物相分析、激光光谱分析和电子显微镜观察确定,本试料磨至—0.2毫米后,约55%的金仍分布于载体矿物中,以0.5—0.02微米的次显微金的形式存在。氰化提金试验表明,载体矿物中的次显微金粒大部分不能与氰化物反应。这是因为它们在磨矿过程中不能单体解离,仍被载体矿物严密包封。
The ore studied gold 6.2 g / t, containing 268 g / t silver. Cu, Pb, Zn are recovered value. The main mineral components are carbonate (70%), silicate (about 20%) and sulfide (about 10%). Gold minerals are natural gold, silver and a small amount of gold and copper mine, copper and silver ore and copper and silver ore. Its particle size less than 10 microns accounts for about 90%. By atomic absorption spectroscopy, phase analysis, laser spectroscopy and electron microscopy observations determined that the sample is ground to -0.2 mm, about 55% of the gold is still distributed in the carrier minerals to 0.5-0.02 micron sub-microscopy The form of gold exists. Cyanidation gold test showed that most of the submicron gold in the carrier minerals can not react with cyanide. This is because they can not be monomer dissociated during grinding and are still tightly encapsulated by carrier minerals.