American Smelting and Refining Company

ASARCO [American Smelting and Refining Company] This large metallurgical company has given its name to a flue-gas desulfurization process in which the sulfur dioxide is absorbed in dimethylaniline and subsequently desorbed at a higher temperature. Operated in California, Tennessee, and Norway. 

Similar acid-base chemistry is involved in the American Smelting and Refining Company s (ASARCO s) sulfur dioxide capture process using aqueous dimethylaniline (Eq. 3.25). 

Sulfur dioxide capture and subsequent reduction to a sulfur product has also been tested. The American Smelting and Refining Company s process involves combustion of the cooled and cleaned smelter gases with methane (Fig. 13.10 Eq. 13.38). 

Jackson Ml, and there was engaged in the design of major hydroelectric plants for 30 years. He also was associated with the Consumers Power Company, the Commonwealth and Southern Corporation, and the Ambursen Engineering Company as vice-president, then headed by Nils F. Ambursen (1876-1953). He conducted his own consulting office, and for the last eight years of his life served as hydraulic consultant to the American Smelting and Refining Company, Tucson AZ. 

Betterton (2) A process for removing zinc from lead by reaction with gaseous chlorine at400°C. The resulting zinc chloride floats on the molten metal and is skimmed off. Invented in 1928 by J.O. Betterton at the American Smelting and Refining Company. 

Three major companies accounted for the bulk of US arsenic production in the first half of the twentieth century American Smelting and Refining Co. (ASARCO both copper and lead smelting in several domestic plants), Anaconda Copper Co. (copper smelting), and US Smelting Co. (lead smelting), along with several minor producers. Notably, from 1974 to 1985, the domestic supply of arsenic was controlled by ASARCO, and since 1985 by imports primarily from China, Chile, and Mexico (Mineral Commodity Summaries, 2004). 

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