The flotation process, comp. and ed. by T. A. Rickard

 
9781236050779: 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 download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1916 Excerpt: ...No. 835,120 is dated November 6, 1906, while application for it was made on May 29, 1905.--Editor. This brings us, of course, to what I regard as the only real question in the case, and that is as to whether there is any distinction in principle between the froth which is formed with a very small quantity of oil and one which is formed with a larger quantity; in other words, whether there is a difference between an air-froth and an oil-froth or emulsion. The first patent in suit, 835,120, states that less than 1% of oil is used; and then in describing the action of that oil it states that it coats the mineral particles. Well, they cannot be coated otherwise than by a minute film. The descriptive language is precisely the same, and then, as shown by the demonstrations in this Court, we have produced 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 an...

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9781230185002: The flotation process, comp. and ed. by T. A. Rickard

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ISBN 10:  1230185003 ISBN 13:  9781230185002
Publisher: RareBooksClub.com, 2013
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