Cyanide Practice, 1910 to 1913
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Cyanide Practice, 1910 to 1913

Cyanide Practice, 1910 to 1913


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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. 1913 Excerpt: ...and it is necessary to crowd the passage of pulp, these may be necessary. Usually, however, with sufficient decanting capacity these will not be needed, though it might be well to put them in, to provide extra capacity for decanting. If the clarifying vat or press is used the inner (settling) vat can be made smaller in proportion and the decanting may be crowded, the clarifying device taking care of any colloidal matter which passes over. Mr. McKinnery, of Ward, Colorado, who has a plant somewhat on these lines, except that he agitates mechanically and keeps the decanted solution passing through the system of tanks against the flow of pulp, finds that the settling is practically perfect. His extraction on heavy sulphide ore is good. By the time the pulp reaches the last vat and is ready to be discharged, the dissolved gold remaining is so small in amount that it does not pay to use a filter-press. Tests show that in the Oregon plant the dissolved gold in the trailing when ready to be discharged will not be over Sy2c. per ton. This can be thrown away cheaper than a filterpress can be put in and operated. An existing plant using Pachucas for agitation can easily and cheaply be modified to use barren cyanide solution for agitation, and it would probably cut out the cost of filter-pressing. In making such a change, build the inner vat 8 to 10 ft. diam., 10 to 15 ft. deep, and construct it from 1-in. lumber, corrugated iron, or any handy material. It does not have to be especially strong or heavy. Leave the transfer pipe in the centre as usual, cutting into the air-pipe a connection from the barren-solution pump, or, better, putting in a separate pipe for the barren solution. Do the settling outside the inner vat instead of inside it as shown in the flow-sheet. ...


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Product Details
  • ISBN-13: 9781130336696
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 272
  • Spine Width: 14 mm
  • Width: 189 mm
  • ISBN-10: 1130336697
  • Publisher Date: 01 Mar 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 490 gr


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