Canadian mining journal July-December 1915 . f mixture per tonof ore was used; at Daly-Judge. 1 to V - lb.; and atthe National 3/10 lb. of oil is sufficient. In the experi-mental work at another plant the oil consumption wasapproximately 1 lb. of mixture per ton; but since theentire plant has been in operation, and the circuit waterreclaimed and used over again, the oil consumption hasdropped to lb. At present the proper kind orkinds of oil and the quantity requisite can only be de-termined by experiment; no scientific way has thusfar been found. Character of froth made by the
Canadian mining journal July-December 1915 . f mixture per tonof ore was used; at Daly-Judge. 1 to V - lb.; and atthe National 3/10 lb. of oil is sufficient. In the experi-mental work at another plant the oil consumption wasapproximately 1 lb. of mixture per ton; but since theentire plant has been in operation, and the circuit waterreclaimed and used over again, the oil consumption hasdropped to lb. At present the proper kind orkinds of oil and the quantity requisite can only be de-termined by experiment; no scientific way has thusfar been found. Character of froth made by the pneu-matic process has the distinctive characteristic of be-ing unstable or ephemeral; that is, it quickly dies when tOO To** fret* OX J 5fi>oof» o»4Ovfjtcu of H* I CXJSjt/ie ItS . lOO-j. + IOO . I60j. +/so . zn-f. *roo . ? -too . rsjf. —Flotation Expcrimcnts-kt —Ualy-Juoge Mill.—Tcst N* 34. r«+d by Products - Lmmd, 49S Zinc. fO 14 $ttv+r, /aw. Hood* A*X>y . «*« /a*? * XPC T*t G£M€**l f**Xl* mt OBui\c c*ryi VTMM. •7 Sir . r 9 * tmA J \.im • U+4 tfW/a •* Cm*t% m rmi <-•? W Af tmw Ctffmr am* •» mtM ft c+mtt mwr m *r ** P* 4 <~•*b * m &+mt r++* . 404, (mil •»* Cm* Cfwmtt. • W*W»/ «, W t— •«*¥ r *0 Ato* Cttw Pig. r«mo?6d bfom th*» action of thr injootod air. Tliobtibblei eraapoting the froth nro generated under abydranlie pi^^sur) varying from is t 40 in.; upon ns-iiitr above the trater tth level, the iml>bl^s 720 THE CANADIAN MINING JOURNAL December 1. 191; burst by reason of the lower pressure of the atmos-phere. On bursting, they release the mineral attach-ed to them, which is caught up by the bubbles follow-ing immediately behind. The stability of the bubblesdepends to some extent, upon the oil used and the na-ture of the gangue in the pulp treated. Pine oil makesa brittle froth which dies immediately on ar
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
