The Practice of Ore Dressing in Europe: A Description of Foreign Methods for the Mechanical Concentration of Ores |
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apparatus barren rock battery belt buddle capacity carried cassiterite cent classifier Clausthal coarse meal coarser coarsest cobbing comminution concen concentrates copper copper pyrites crushers crushing deposit diameter discharge dressing drum effect Engineering equal-falling experiments favorable finer friability galena gangue grade grains grinding machines head Heberle Huettenm hydraulic Illustrated description inch inclined iron pyrites launder Lintorf loss machine magnetic manual material meal and pulp meal jigging mechanical middlings mill millimetre Mining minute morocco motion operation outward-flow overflow passes pipe piston practice Przibram pulp slime quantity quartz quartzose reduced revolutions per minute revolving Rittinger roasting roll rock rolls rotating round table sand Schemnitz Schranz separation settling side-percussion sieve sizing slime washer Small 8vo sorting spalling spathic iron specific gravity speed spitzkasten spitzlutte stamp stroke stuff syphon tailings tion tons treated treatment trommel vats velocity wash water washing surface wear zinc