Pyrometallurgy - Roasting
- Organization:
- The American Institute of Mining, Metallurgical, and Petroleum Engineers
- Pages:
- 2
- File Size:
- 128 KB
- Publication Date:
- Jan 1, 1982
Abstract
US 4,185,996 -- Removal of arsenic and sulfur Impurities from arsenic-containing cobalt sulfide ore. The ore is oxidized In air at a temperature of 700 to 800°C for 3 to 8 hr to drive off the bulk of the sulfur The oxidized ore 1s heated with a reducing gas at a temperature of 700 to 800°C for 2 to 6 hr to volatilize arsenic, and the final calcine 1s leached with an acid to eliminate substantially all of the remaining arsenic. A.R. Zambrano, assigned to Hanna Mining Co Jan. 29, 1980. 3 pp. (75-2). Filed. 2-13-78 (877,002).
Citation
APA: (1982) Pyrometallurgy - Roasting
MLA: Pyrometallurgy - Roasting. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1982.