The flotation process . original sample,or the concentrates from several tests combined to give enough materialfor re-treatment. If this is done three products are made, namely: A rougher tailing, to waste. A clean concentrate, for shipment. A cleaner tailing or middling, which in actual practice isreturned to the head machine. When these conditions are observed results only slightly lowerthan those possible with a big machine can be obtained. A test canbe run in from 5 to 30 minutes in such a machine with 500 gramsof ore in anything from a 3:1 to a 5:1 pulp. The glass sides of TESTING ORES FO
The flotation process . original sample,or the concentrates from several tests combined to give enough materialfor re-treatment. If this is done three products are made, namely: A rougher tailing, to waste. A clean concentrate, for shipment. A cleaner tailing or middling, which in actual practice isreturned to the head machine. When these conditions are observed results only slightly lowerthan those possible with a big machine can be obtained. A test canbe run in from 5 to 30 minutes in such a machine with 500 gramsof ore in anything from a 3:1 to a 5:1 pulp. The glass sides of TESTING ORES FOR THE FLOTATION PROCESS 281 the spitzkasten allow close observation of the condition of the froth,and this is a great advantage to the beginner. The small amount ofore necessary for a test is a matter of considerable convenience asfine grinding of the ore in the laboratory is often irksome. Thealuminum casting is little corroded by either acid or alkalineelectrolytes. The return of pulp from the spitz to the agitating-. Froffy Concenfrafe. ^--Rubber Plug mfe ^ Trough for Froth. ^ Confracfeaf 61. sketch of the lyster ob hoover machine.
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Keywords: ., bookcentury1900, bookdecade1910, bookidflotationpro, bookyear1916
