前言有效地开发有限的地下资源,对日本极为重要。为此,要研究的课题是,如何经济有效地从低品位矿石中回收有用金属。作为解决此问题的手段,考虑了加压浸出试验和堆浸试验。原子动力堆·核燃料开发事业团认为就铀矿的开发而言,这些方法将来会起重要作用,所以在岐阜县东浓矿山进行了加压浸出试验,在冈山县人形(?)矿山进行了堆浸试验。 Preface Effectively developing limited underground resources is of paramount importance to Japan. Therefore, the subject of research is how to recover useful metals from low-grade ore economically and effectively. As a solution to this problem, pressure leaching test and heap leaching test were considered. Atomic Power Reactors · The Nuclear Fuel Development Corporation believes that these methods will play an important role in the future in the development of uranium. Therefore, a pressure leaching test was carried out at Dongnong Mine, Gifu Prefecture, at the Okayama County Humanoid (?) Mine Heap leaching test.