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Treatment of Copper Smelting and Refining Wastes.

PB95170494

Publication Date	1994
Personal Author	Steele, D. K.; Gritton, K. S.; Odekirk, S. B.
Page Count	28
Abstract	The domestic primary copper industry generates in excess of 600 million metric tons of mining and mineral-processing waste annually. The U.S. Bureau of Mines has researched methods to mitigate the environmental threat posed by copper-processing wastes while recovering valuable metals from these materials. Acid-leach processing of flue dusts has been demonstrated feasible along with sulfide treatment of liquid refinery wastes and acid-plant-bleed and gas-cleaning solutions to precipitate dissolved metals. In addition, the feasibility of removing copper and molybdenum from slag, as well as stabilization of precipitated sulfide wastes by vitrification has been investigated.
Keywords	Copper Waste processing Smelting Flue dust Precipitation(Chemistry) Neutralizing Metals Bismuth Sulfuric acid Arsenic Materials recovery Waste processing plants Acid plant blow down
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 68C - Solid Wastes Pollution & Control
Corporate Authors	Bureau of Mines, Salt Lake City, UT. Salt Lake City Research Center.
Document Type	Technical Report
Title Note	Rept. of investigations/1994.
NTIS Issue Number	199508

Treatment of Copper Smelting and Refining Wastes.

Treatment of Copper Smelting and Refining Wastes.
PB95170494

Publication Date	1994
Personal Author	Steele, D. K.; Gritton, K. S.; Odekirk, S. B.
Page Count	28
Abstract	The domestic primary copper industry generates in excess of 600 million metric tons of mining and mineral-processing waste annually. The U.S. Bureau of Mines has researched methods to mitigate the environmental threat posed by copper-processing wastes while recovering valuable metals from these materials. Acid-leach processing of flue dusts has been demonstrated feasible along with sulfide treatment of liquid refinery wastes and acid-plant-bleed and gas-cleaning solutions to precipitate dissolved metals. In addition, the feasibility of removing copper and molybdenum from slag, as well as stabilization of precipitated sulfide wastes by vitrification has been investigated.
Keywords	Copper Waste processing Smelting Flue dust Precipitation(Chemistry) Neutralizing Metals Bismuth Sulfuric acid Arsenic Materials recovery Waste processing plants Acid plant blow down
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 68C - Solid Wastes Pollution & Control
Corporate Authors	Bureau of Mines, Salt Lake City, UT. Salt Lake City Research Center.
Document Type	Technical Report
Title Note	Rept. of investigations/1994.
NTIS Issue Number	199508