E/MJ : engineering and mining journal . before the influence of the p ?. for this reason al - multizonal field mu-t conform t the second rule h-tilled, so that the next one cannot affect the particle before the prei • one litis pulled it back. ii each other in the arrangemenl ju-t described, the poinl may be ithat with a of belt the time required for the i I from zone to zone ma\ be a cleat paration. Tests h I thai thi- is ase and thai a si in he attained y distinctly as it Ilii- form of fieldlar type of magn many different styles. Owing to its compactness (a pair ofplate-- ically replac
E/MJ : engineering and mining journal . before the influence of the p ?. for this reason al - multizonal field mu-t conform t the second rule h-tilled, so that the next one cannot affect the particle before the prei • one litis pulled it back. ii each other in the arrangemenl ju-t described, the poinl may be ithat with a of belt the time required for the i I from zone to zone ma\ be a cleat paration. Tests h I thai thi- is ase and thai a si in he attained y distinctly as it Ilii- form of fieldlar type of magn many different styles. Owing to its compactness (a pair ofplate-- ically replace a complete ma_ I :- the raising of the capacity of the >ep-The n i pair of el magni similar to those empli or width of llL. ft. The m riant part in the concentration of,,,-e-. i apaeity has so fi Mineral Export* from French Imlo-Clilnn in 191E to a ? ? ore: 3!T tons tin and tungsten ore; 630 tol 33,335 tons zinc ore: 400,000 tons coal: m of particular ire-ment during October-Decembeifrom Haifong to Baltimore and PIG. 5 JOBKB SBPAR ATOR THREE-ZONE MAGNETIC FIELD 820 ENGINEERING AND MINING JOURNAL Vol. 102, No. 19 Ffloft^SioKa Testis ©Ea avsa i%.E5i{tninm©in\y By Earl E. PiLGRiMf The Sliscovich Aline is situated on Seward Peninsulaabout 20 mi. from Nome, Alaska, at an elevation of1,100 ft. The lode is composed of quartz and ore assays from 18 to !<•, antimony and from oz. of gold. The gold is not evenly distributedthroughout the ore, but appears in bunches inclosed inthe quartz. The stibnite and quartz are so finely in-termixed that coarse-concentration methods are impos-sible. Our problem in these tests was to determine thefeasibility of separating the gold from the stibnite bytlotation. These tests were run on a Case experimental machine,mechanically agitated type; the ore was -round to passa 60-mesh screen in all but the last series. The con-sistency of the charge for the machine was (i H20 to 1ore. This was found to be the most
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectmineralindustries
