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Recovery of Copper from Granulated Blast Furnace Slag.


PB279660

Publication Date 1978
Personal Author Jordan, C. E.; Sullivan, G. V.; Scott, E. D.
Page Count 20
Abstract The Bureau of Mines conducted bench and small-scale continuous studies to recover a recyclable copper product from a waste granulated blast furnace slag. The slag contained from 5 to 7 percent total copper, of which from 3 to 4.5 percent was metallic copper. Tabling of the slag ground through 35 mesh recovered 58 percent of the total copper and 88 percent of the metallic copper in a concentrate that contained 39 percent copper. Flotation of the slag ground through 65 mesh using a xanthogen formate collector produced a 32 percent copper concentrate and recovered 76 percent of the total copper and 98 percent of the metallic copper. A small-scale continuous test was conducted to investigate simple gravity separation techniques. A 40-hour test was made with a circuit that included rod mill grinding, a Humphreys spiral, and shaking tables. Two concentrates were prepared according to particle size. The plus 35-mesh concentrate contained 68 percent copper and the minus 35-mesh concentrate contained 72.5 percent copper. The composite of the copper products contained 70 percent copper, and the process recovered 60 percent of the total copper and 90 percent of the metallic copper.
Keywords
  • Copper
  • Materials recovery
  • Slags
  • Beneficiation
  • Tables(Concentrators)
  • Flotation
  • Jigs(Concentrators)
  • Spirals(Concentrators)
  • Granulation
  • Copper oxides
  • Gravity concentrators
  • Solid wastes
  • Continuous process methods
Source Agency
  • Bureau of Mines
NTIS Subject Category
  • 71N - Nonferrous Metals & Alloys
  • 68C - Solid Wastes Pollution & Control
Corporate Authors Bureau of Mines, Tuscaloosa, Ala. Tuscaloosa Metallurgy Research Lab.
Document Type Technical Report
Title Note Rept. of investigations 1977.
NTIS Issue Number 197816
Recovery of Copper from Granulated Blast Furnace Slag.
Recovery of Copper from Granulated Blast Furnace Slag.
PB279660

  • Copper
  • Materials recovery
  • Slags
  • Beneficiation
  • Tables(Concentrators)
  • Flotation
  • Jigs(Concentrators)
  • Spirals(Concentrators)
  • Granulation
  • Copper oxides
  • Gravity concentrators
  • Solid wastes
  • Continuous process methods
  • Bureau of Mines
  • 71N - Nonferrous Metals & Alloys
  • 68C - Solid Wastes Pollution & Control
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