论文部分内容阅读
随着对黄金和白银需要量日增,世界各国除了开采以金银为主的矿床外,还重视从各种有色冶炼残渣中回收伴生的黄金和白银。据统计,世界上从有色金属矿石中综合回收的银占总产量的百分之八十。我国和世界其它国家一样,白银的需要量也在不断增长。而伴生在有色矿石中的白银,在冶炼过程中,有些没有得到回收而被流失在冶炼残渣中,造成浪费。因此迫切需要采取措施,使流失在冶炼残渣中的白银加以回收。例如,湿法炼锌过程中流失在浸出
With the increasing demand for gold and silver, all countries in the world pay more attention to recovering associated gold and silver from various non-ferrous smelting residues in addition to gold-silver-based deposits. According to statistics, silver recovered from non-ferrous ores in the world accounts for 80% of the total output. As in the rest of the world, the demand for silver is also on the rise. The associated silver ore in the non-ferrous, in the smelting process, some have not been recovered and was lost in the smelting residue, resulting in waste. There is an urgent need to take measures to recover silver, which is lost in smelting residues. For example, leaching is lost during the zinc smelting process