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Annual Report - Geological Survey of Canada Volume 4

Annual Report - Geological Survey of Canada Volume 4


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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. 1890 Excerpt: ...Two kinds of ore wore obtained from tho Hull bed, a black magnetite and a red hematite. The analysis of these, given by Dr. Hunt, is as follows: --Geo. Survey Report, 18-j-69, p. 255. Analyses of Hu' In the hematite Peroxide of iron 66.201-vr.t nl;; co-o Protoxide of iron 17.78/ Metallic iron.... 58.,8 Silica 10.44 In the magnetite nil ore. Magnetic oxide of iron 73.99 Metallic iron 53.20 Silica 20.27 Both contained very small quantities of phosphorus and sulphur. 3meitiDopera-The results obtained while the furnace was in blast from the 27th of April to the 5th of October, 1S68, as quoted by Dr. Hunt, were as follows: --Ore from Hull and Arnprior 1,896 tons Scrap iron 71" Limestone 211" Charcoal, both soft and hard 242,782 bushels Wood 25$ cords Peat and coke 211J bushels Resulting pig iron 1,040/jj tons Cost per ton $26.50 The yield per ton of ore from these experiments is 54J per cent. The amount of charcoal used per ton was 235 bushels, and of peat and coke 47 lbs. Leaving out the amount of peat and coke, the quantity of charcoal per ton of ore was 3"f cwt. This amount of fuel is excessive as shown by Dr. Hunt, from a comparison with furnaces smelting similar ores in Sweden, where the average weight of the charcoal required, per ton, is for white or mottled pig iron but sixteen to seventeen cwt., while for gray metal for foundry purposes or for Bessemer steel from twenty-one to twentytwo cwt. On the assumed weight of charcoal at 18 lbs. per bushel, this saving, at 8 cents per bushel, would effect a reduction on the cost per ton of pig iron of seven to eight dollars. At P_ort Henry, on Lake Champlain, according to the same authority, where magnetic ores, similar to those of Hull are smelted with anthracite coal, the average ...


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Product Details
  • ISBN-13: 9781130022421
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 398
  • Spine Width: 21 mm
  • Width: 189 mm
  • ISBN-10: 1130022420
  • Publisher Date: 01 Mar 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 708 gr


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