海底锰结核是一种广泛分布于世界大洋底部的沉积矿产,是极为重要的海洋资源之一。海底锰结核含大量的铜、钴、镍以及稀有贵重金属,且蕴藏量巨大。近30年来,随着陆地资源的日益枯竭,研究开发和处理锰结核的工作越来越受到人们的重视。据资料介绍,现已探明的全世界海底锰结核总储量为3000～3500亿吨,其锰、镍,钴,铜等金属的含有量高于陆地储量的数十或数百倍。当陆地上的这些金属资源以目前的开发速 Submarine Manganese Nodules is a sedimentary mineral widely distributed in the bottom of the world ocean and is one of the most important marine resources. Seabed manganese nodules contain large amounts of copper, cobalt, nickel and rare precious metals, and huge reserves. In the recent 30 years, with the depletion of land resources, more and more attention has been paid to the research and development and treatment of manganese nodules. According to the information, the total proven reserves of manganese seabed in the world at sea are between 3000 and 350 billion tons. The content of such metals as manganese, nickel, cobalt and copper is more than tens or hundreds of times that of onshore reserves. When these metals on the land resources to the current development speed