Transactions of the Electrochemical Society Volume 35

Transactions of the Electrochemical Society Volume 35

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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. 1920 edition. Excerpt: ...or 100 percent, and only 4 percent was recovered. If this figure applied for the whole country in 1916, then only 16,000 tons of the 400,000 tons total of K2O charged into American blast furnaces were recovered. According to Mr. H. D. Egbert, of the Research Corporation, in his article "Electrical Cleaning of Blast Furnace Gas," published in the January, 1918, issue of "The Blast Furnace and Steel Plant," 71.5 percent of the total K2O charged into the furnace is recoverable by a hot dry-cleaning process. Assuming that the 20 percent going into the slag is also largely recoverable, then we may assume that roughly, 85 to 90 percent of the total K20 charged into the blast furnace is recoverable by the electrical precipitation process. The possible recovery then from this source, combined with, that from cement mills previously mentioned, would be considerably in excess of our normal requirements. In this connection it is interesting to note the amount of potash actually being recovered. The output of all potash materials produced and marketed, as reported by manufacturers to the U. S. Geological Survey in 1917, was 126,577 tons, which averaged 26.4 percent, or 32,366 tons, of pure potash. The total value was $13,791,922. Of the total potash material produced, approximately 10 percent was recovered from cement mills, about half of which employed the electrostatic precipitation process. Treatment of Emulsions. The treatment of emulsions by the electrical precipitation process, for removal of suspended material, has received considerable impetus, chiefly in the dehydration of oils in California oil fields and to a limited extent in the removal of tarry matter from gases. In the practical production and transportation more

Product details

  • Paperback | 128 pages
  • 189 x 246 x 7mm | 240g
  • United States
  • English
  • black & white illustrations
  • 1236876393
  • 9781236876393