A Study of Operation, Metallurgical Control, and Costs at the Independence Mill

24 hours amalgamation amount of undersize Assays Head Average ball mills Borax bubbles Calculated gold recovery circuit grinding classifier separation cleaning cell closed circuit coarse Conc conveyor cost keeping crusher crushing Daily determine Dorr eliminated factors feed rate filter feed finer grinding finished material flotation circuit flotation reagents Flotation Test flotation unit flow fraction gangue gengue grinding capacity grinding circuit handle high circulating load increase Independence Mill indicated input litharge machine mesh metal balance method middling particles mill discharge mill feed mill heads MILLING CONTROL milling cost mineral mining moisture content operating cost ounces output oversize Pine oil primary grinding profit proper pulp dilution pyrite quartz rake Reagents Reagent 301 rejected return load return sands salt screen analyses settling Shipment silicate silver nitrate Soda Ash Sodium silicate sorting belt sorting operation sorting plant specific gravity sphalerite sprays sulphide tion titration tonnage tons per day Trommel xanthate