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Home > Mining and Metallurgy Volume 92: (English)
Mining and Metallurgy Volume 92: (English)

Mining and Metallurgy Volume 92: (English)

          
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About the Book

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 Excerpt: ...2 No. 3 Conoidal deck 71.39 Conoidal deck 5.92 70.3 10.3 No. 3 No. 2 Conoidal deck 64.18 Conical deck 5.92 70.4 10.4 No. 1 The work of the conical deck is practically identical with the work of the conoidal deck No. 2. The conoidal deck results illustrate very clearly the effect of the slope on the work of the table, the grade of concentrate produced being lowered by a decrease in slope while the recovery of copper is raised. Conoidal deck No. 3 with the chord of its arc laid on a slope of 1.125 in. per foot was designed to produce a cleaner grade of concentrate than the conical deck with its slope of 1.25 in. per foot, at the same time making practically the same recovery of copper. The tests showed that the results desired were very closely approximated, conoidal deck No. 3 recovering 71.39 per cent. of the copper fed in 21.39 per cent, of the total feed solids while the conical deck recovered 74.10 per cent, of the copper fed in 29.63 per cent, of the feed solids. In considering these results it must be remembered that the conical deck had a radial width.6 in. greater than the radial width of the conoidal deck and that, therefore, in order to make the results strictly comparable, the deposit on the lower 6 in. of the conical deck should have been washed into the tailing launder. Order of Deck Efficiency Based on Concentrate No. 1 In Regard to Copper Recovery In Regard to-Grade of Concentrate Recovery, Per Cent. Cu Insol. FeO Conoidal deck 68.75 Conoidal deck 13.03 39.6 22.9 No. 2 No. 1 Conoidal deck 68.66 Conoidal deck 9.84 53.4 17.4 No. 3 No. 3 Conical deck 67.77 Conical deck 7.56 63.3 13.3 Conoidal deck 61.32 Conoidal deck 7.03 65.5 12.3 No. 1 No. 2. The above tabulation shows that the conical deck and the conoidal deck No. 2 did very similar work in p...


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Product Details
  • ISBN-13: 9781130756791
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 166
  • Series Title: English
  • Weight: 308 gr
  • ISBN-10: 1130756793
  • Publisher Date: 01 Mar 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Spine Width: 9 mm
  • Width: 189 mm


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