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黄金生产在我国国民经济中占有重要地位,近年来,由于国际市场对黄金需求的增长和世界范围的激烈竞争,黄金等贵金属价格猛涨,激起了世界各国竞相开展低品位金矿的开采和利用研究。国内外延用的传统提金方法主要是氰化法和混汞法,这两种方法虽然有较好的提金效果,但都使用剧毒药剂——氰化钠和金属汞,对环境和生态系统的污染和破坏十分严重,因此寻找无毒、高效新的提取剂和提金技术是当前金矿选冶中急待解决的研究课题。此外,目前我国在黄金生产上也迫切需
In recent years, due to the increasing demand for gold in the international market and the fierce competition in the world, the price of gold and other precious metals has risen sharply, which have aroused the victories of countries all over the world competing for the exploitation of low-grade gold mines and Use research. The traditional gold extraction methods at home and abroad are mainly cyanidation and amalgamation. Although the two methods have better gold extraction effects, they all use highly toxic agents, such as sodium cyanide and metallic mercury, on the environment and ecology System pollution and destruction is very serious, so looking for non-toxic, efficient new extractant and gold extraction technology is the gold mining and metallurgy urgent research project. In addition, at present, China also urgently needs gold production