The Flotation Process, Comp. and Ed. by T. A. Rickard

The Flotation Process, Comp. and Ed. by T. A. Rickard

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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. 1916 edition. Excerpt: ...the same result ocularly, and metallurgically, with these large quantities of oil as with the minute quantity. WHY DO MINERALS FLOAT? By Oliver C. Ralston (From the Mining and Scientific Press of October 23, 1915) I was very much interested in reading an article by Charles T. Durell, appearing in the Mining and Scientific Press of September 18, under the caption 'Why Is Flotation?' However, I find myself unable to agree with Mr. Durell's line of argument, and for the following reasons: In the first place I believe that Mr. Durell has used loosely some rather obscure scientific terms which may cause unnecessary confusion to anyone not thoroughly familiar with the physical chemistry involved. The term'nascent gas'is especially open to criticism. Doubtless Mr. Durell means the dissolved gas that can be liberated from the water, but that is hardly the ordinary sense of the term, and many modern physical chemists will object to the use of the word 'nascent' under any conditions whatever, or even refuse to recognize it, in spite of the old ideas that grew up around it. However, it may be that 'nascent' is a good term to use here in a figurative sense. Another term used by Mr. Durell and to which an objection might be raised is the word 'occlusion' as applied to the gases held by minerals. Mineralogists have long used this term rather loosely, but Mr. Durell Communicated by D. A. Lyon, metallurgist in charge of Utah Experiment Station, XJ. S. Bureau of Mines and Department of Metallurgical Research of University of Utah, Salt Lake City, Utah. O. C. Ralston, assistant metallurgist. does not seem to have taken it up in the same sense. As I understand it, there are three ways other than in visible openings by which gases can be held in solids j1...show more

Product details

  • Paperback | 122 pages
  • 189 x 246 x 7mm | 231g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236883810
  • 9781236883810