秋田製煉所電解亞鉛工場の設計と操業実績について
1956 年 72 巻 818 号 p. 425-429
詳細
1956 年 72 巻 818 号 p. 425-429
One of the world's newest and most modern electrolytic zinc plant has been in operation at Akita City, Japan since Janualy 1954. The plant was designed, built, and is operated by the Mitsubishi Metal Mining Company, Ltd.
This plant is unusual in that it treats a wide variety of concentrates, which ae particularly high in copper in comparison with feed to other electrolytic zinc plant. The plant, in 1956, has a rated capacity of 25 metric tons of special high grade zinc.
The DORCO Fluo Solids process is successfully applied for roasting the concentrates.
The exhaust gas is washed by a Peabody scrubber and sent through an underground pipe to the Fertilizer plant 600 meters away. Hydrometallurgically a low density and low acid process is used. The entire system is designed to be continuous and mechanized. Continuous double leaching, 2-stage washing by Oliver filters, and continuous 3-stage purification process precede electrolysis. The zinc slab produced is certified to be more than 99.997 per cent pure.
