Abstract
Arsenic emissions from primary copper smelters are currently being reviewed by the U.S. Environmental Protection Agency to help establish the best available control technology. Relatively little information is available in the literature concerning the actual distribution of arsenic throughout the copper smelting processes. In addition, smelting process parameters which specifically affect arsenic distribution have not been clearly defined. This paper presents a general summary of arsenic distributions based on data from foreign and domestic copper smelters utilizing different smelting processes. The distribution of arsenic is presented on a 100% input basis for the various smelting configurations as well as for the individual process units. The general trends of arsenic volatilization and slagging for different process units are examined and probable effects are discussed. The effectiveness of control devices such as electrostatic precipitators and fabric filters in the control of arsenic emissions from copper smelters is also discussed.
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