Kosaka Smelting and Refinery

Acid Plant Database September 12, 2011

Owner	Kosaka Smelting and Refinery Co. Ltd.
Location	60-1 Otarube, Kosakakouzan, Kosakamachi, Kazuno-gun Akita Prefecture 017-0202 Japan
Background	-
Website	www.dowa.co.jp
Plant	-
Coordinates*	40° 20' 20" N, 140° 44' 59" E
Type of Plant	Metallurgical
Gas Source	Copper Outokumpu Flash Furnace	Lead (PbSO₄) Electric Furnace Exhaust gas containing SO₂ goes through dust settling chamber and hot ESP before being sent top the flash furnace smelting furnace boiler where CO is burned
Plant Capacity	-
SA/DA	-
Emissions	-
Status	-
Year Built	-
Technology	-
Contractor	-
Remarks	72,000 tonnes/a copper
Pictures
General	Kosaka Smelter has been smelting complex ore for more than 100 years. The ability to smelt complex ore makes Kosaka Smelter most competitive in the world market. High technology enables us to recover various valuable metals, such as the base metals of gold, silver, copper, and lead as well as rare metals, such as bismuth, indium. We are also proud of our pollution free operations. Dowa Metals & Mining Co., Ltd. is responsible for the Dowa Group’s nonferrous metals operations, which are the foundation of the Group. With a high level of technological capability in the copper and precious metals, zinc, rare metals, and recycling businesses, The history of the Dowa Group began in the Kosaka mine, located in northern part of Japan. The ore (black ore) mined in this region is rich in gold and silver, but these were difficult to extract, which inhibited their effective utilization. Dowa Metals & Mining challenged this technological barrier aggressively, and as a result of many years of technical improvements, developed technology for recovering various metals mixed in complex ways. Precious metals recovery and recycling based on this black ore processing technology is a specialty of the Kosaka Smelting & Refining Co., Ltd., which continues to evolve as a smelting plant with an individual character.
References	-
News	-

MTPD - Metric Tonne per Day STPD - Short Ton per Day
MTPA - Metric Tonne per Annum STPA - Short Ton per Annum
SA - Single Absorption
DA - Double Absorption

* Coordinates can be used to locate plant on Google Earth


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