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Behavior of Arsenic in a Static Bed During Roasting of Copper Smelter Feed.

Authors
Landsberg-A; Mauser-JE; Henry-JL
Source
MISSING :18 pages
Link
NIOSHTIC No.
10006934
Abstract
Accessory metals, although valuable resources, present possible environmental concern in the smelting of base metals. The Bureau of Mines, U.S. Department of the Interior, has undertaken research to define the chemistry involving these metals. Arsenic in copper smelting is the first to be investigated. Roasting, the first step in many copper smelters, was chosen for initial investigation because of the potential for arsenic removal in this primary process. Simple, static-bed, vaporization experiments were devised to obtain the data in this study. Ancillary transpiration and mass spectrometry were also used to delineate conditions necessary for arsenic volatilization from a roaster feed. For nearly complete arsenic removel, a temperature of 650 deg. - 700 Deg. C, a reducing atmosphere including carbon monoxide, and a source of sulfur were found to be essential.
Publication Date
19800101
Document Type
IH; Report of Investigation;
Fiscal Year
1980
NTIS Accession No.
NTIS Price
Identifying No.
RI 8493
NIOSH Division
ALRC;
Source Name
MISSING
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