Magma Copper Corporation

MacDermid hic., 237 Macfarlan Smith Pic, 211 MAGLITE , magnesium oxides, 84 Magma Copper Corporation, 207, 237 MAGNACIDE H , acrolein, 84 Magnesita SA, 146... 

The U.S. production of selenium was 373 and 379 metric tons in 1995 and 1996, respectively (USGS 2001). No production data were reported for the years 1997-1999. All of the primary selenium producers in the United States are electrolytic copper refiners. Asarco Incorporated and Kennecott Utah Copper Corporation produce refined selenium in the United States (Hoffmann and King 1997 SRI 2000). Two other copper refiners, Phelps Dodge Corporation and Magma Copper Company, send... 

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