The Production of Iron Ores in Various Parts of the World

The Production of Iron Ores in Various Parts of the World

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1895 edition. Excerpt: ...and is making preparations for largely increasing this export. The iron ore of Gell1vara is partly magnetite, partly specular ore, both occurring as numerous long layers in a gneissic rock forming a mountain about 4 miles in length and about COO feet in height above the surrounding flat country, having a width of about 1 miles. Many of the ore layers are of considerable size, some of them being from 180 to 300 feet wide, the dip varying from 45 to 80 degrees from the perpendicular. The quality of the ore is also very changeable. Good Bessemer ores containing 67 to 69 per cent or 1horc of iron occur in large quantities, but the greater part of the ores are high in phosphorus. The percentage of sulphur is, on the contrary, very small, except in a few cases. Mr. Jeremiah Head, in a paper on " Scandinavia as a source of ironore supply," says: About 1867 a magnetite mine, situated 071 the seaboard, a little to the north of Getle, exported two cargoes of ore containing 66 per cent of iron, and only a trace of phosphorus. Notwithstanding that steamers carrying 1,000 tons could lie so close in to the mines that the ore could be wheeled right aboard, the cost of production and delivery at that time was higher than the price obtainable, and consequently the mine was abandoned. In 1888 the total exports rose from 41,986 (the amount for 1887) to 117,530 tons, and those to the United Kingdom: ' 1 657 to 62,672 tons. This sadden increase was due to the operations of an English company, which had during the previous year made a railway 129 miles long from the iron-ore deposits at Gellivara, in Swedish Lapland, to Lulea, a seaport on the western shore of the Gulf of Bothnia, 740 miles from Stockholm. The concession under which more

Product details

  • Paperback | 86 pages
  • 189 x 246 x 5mm | 168g
  • United States
  • English
  • black & white illustrations
  • 1236775074
  • 9781236775078