某些金属的堆浸生产至少已有500年的历史,而贵金属的氰化浸出也有100多年了。但是,以上两种工艺的联合只是在60年代末期才出现的。其发展速度令人吃惊,迄今已经普及到美国西部地区的多数贵金属工厂,尽管常规法生产的贵金属仍然多一些。最近,最富戏剧性的发展是全世界都出现了贵金属堆浸热。 Heap leaching of some metals has been at least 500 years old, while cyanide leaching of precious metals has been for more than 100 years. However, the combination of these two technologies only occurred in the late 1960s. Its rate of development has been staggering and so far it has so far spread to most of the precious metal plants in the western United States, although more precious metals are still produced by conventional methods. Recently, the most dramatic development has been the heaping of precious metals in the world.