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在过去1/4世纪的大部分时间里,日本资源协会致力于连续索斗(CLB)深海采矿系统的开发工作。1972年,CLB系统在水深5000m的地方,成功地采出了夏威夷东南的锰结核,协会的这一成就获得了公认。自那以后,对海洋矿物的兴趣已转向太平洋一些国家专属经济区内的钴壳矿床。约翰斯顿岛附近的钴壳尤其有经济希望。目前正计划1992年在约翰斯顿岛专属经济区试验技术上作了许多改进的新的环行式连续索斗(turning CLB)。结壳有许多用途,既可作净化空气的氧化催化剂,又可作为提取金属的原料。从空气净化条例的有关规定来看,这一特点可大大提高结壳的价值。本文所述的目前计划进行的试验工作,是由夏威夷矿业局海洋矿物技术中心和日本资源协会共同协力组织的。
For the most part in the past quarter of a century, the Japan Resources Institute has been working on the development of the CLB deep-sea mining system. In 1972, the CLB system succeeded in producing manganese nodules in the southeast of Hawaii at a depth of 5000 m. The association’s achievements have been well recognized. Since then, interest in marine minerals has shifted to cobalt-crust deposits in the exclusive economic zones of some countries in the Pacific. The cobalt shell near Johnston Island is especially economically hopeful. A new ring-type continuous CLB is being planned for many improvements to the experimental technology in the Johnston Island EEZ in 1992. Crust has many uses, both for purification of air oxidation catalyst, but also as a metal extraction of raw materials. From the air purification regulations of the relevant provisions of view, this feature can greatly enhance the value of crusts. The current planned test work described in this paper was organized jointly by the Minerals Technology Center of Hawaii’s Bureau of Mines and the Japan Resources Institute.