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在水深4—6千米的深海底,蕴藏着大量以镍为主的含钴、铜、锰和铁等金属的锰结核资源。十多年来,世界各国对锰结核的开发利用极为重视,1982年联合国海洋会议法对此作了积极的讨论。锰结核的冶炼方法虽有各种各样,但大体上可分为乾法、湿法和焙烧一浸出法三种。选择冶炼方法的关键,决定于冶炼厂的厂址、废弃物的各种条件等综合因素。日本公害资
Deep in the depth of 4-6 km deep, contains a large number of nickel-based cobalt, copper, manganese and iron and other metal manganese nodule resources. For more than a decade, the countries of the world have attached great importance to the development and utilization of manganese nodules. The 1982 United Nations Conference on Ocean Law made a positive discussion. Although various methods of smelting manganese nodules, but in general can be divided into dry, wet and roasting a leaching three. The key to choose the smelting method depends on the smelter’s site, various conditions of waste and other comprehensive factors. Japanese pollution assets