北米合衆國及加奈陀に於ける主要選鑛場の近況
1938 年 54 巻 636 号 p. 195-207
詳細
1938 年 54 巻 636 号 p. 195-207
In this paper, the writer describes some informations about the practical concentrators in the U. S. A. and Canada, where he visited about 4 months from June to September last year. Most of the concentrators was treating the crude ores in full capacity of their plants. The writer hopes to state the recent trend of treatment of Cu, Au, Pb, Zn, Mo and nickeliferous pyrrhotite ores and also the power details for crushing, grinding and are treatment.
