ASARCO Hayden smelter (Hayden , Arizona)

 copper mine, metallurgy, mining, smelter

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This copper smelter processes ore from the nearby Ray mine. The smelter opened in 1909 and is one of only three copper smelters remaining in the USA.

The Hayden Operations consists of a 27,400 ton/day concentrator and a 720,000 ton/year copper smelter consisting of an oxygen flash furnace, converters, anode casting, oxygen plant, acid plant, and associated maintenance, warehouse and administrative facilities. Anodes produced at the smelter are shipped to the Amarillo Copper Refinery. The sulphuric acid produced at the acid plant is used in the leaching operations or sold into the market.

A local railroad, Copper Basin Railway, transports ore from the mine to the Hayden concentrator, concentrate from the Ray concentrator to the smelter, and sulphuric acid from the smelter to the leaching facilities.