Show MILL TO SAVE GOLD AND PLATINUM t mr john ogden has gone to ward fol foi the summer and to remain in touch with the operations at the telegraph mine and the new mill now under construction says a recent issue of the boulder colorado miner the plant is being erected under the supervision 0 0 af f engineer ball who has built several of the modern plants of the county the general plan of the mill and its sequence of treatment embraces new features developed by mr ogden and patented by him the plant is now being tried out process employed outlined the process roughly consists of crushing rolls and ball mill to reduce the ore to a maximum size of forty mesh practically sliming the entire material the material will however be separated into fines and slimes to be carried to two of mr agdens electrolytic amalgamating tanks where recovery of gold and platinum take place the pulp will be carried forward to flotation vats which also are equipped for electrolytic amalgamation this equipment will be supplemented in concentration cent ration as indicated by the experience of preliminary test runs and also the amalgamation of the gold and platinum will be extended to the utmost degree of profitable recovery of values the mill system and several devices are by no means experimental in the character chaat ff of results they afford each one having been fully developed and proven in previous practical operation the caution and deliberation of this that appears in the development particular plant lie rather in the new and an untried features presented in the recovery ib ibis is of platinum from the crude ores a new field of of metallurgical inquiry and a presents difficulties not yet fully realized realize mill man Is platinum Fx expert pert pla till mr ogden is an expert in the r through group of metals and it is originally of plat his investigations that the discovery anum in commercial quantity in ores of 0 colo rado mines was first made such discover dis sul ies ar are now encountered freely in the bhide mines of all sections of the state 0 CC u the whereas prior to the last year bit rence of the mineral was not known to the ogden has devoted much study at a the plant metallurgy of platinum and his bis the richest st of 0 telegraph mine one of the of platinum bearing mines is an ail eX espos expos POstOn th the of his process for the recovery in bullion form incidentally gold is ley ered in the same process and gold accompanies platinum in the sanle same ores 0 |