OCR Text |
Show Leaching LeachingEBmimatQesResouE'cc LeachingEBmimatQesResouEcc E ! mmate Resource ' W Wa a ite cte ; < iteEmpmilc Empmilc Emph'ltlc Emphltlc ' testimony that none of ofUtah otUtah wasted wastedcan wastedcan Utah a s reeo resoirces : Irces are being can be hi b1 1 ] from the tbe operation otthe I the Ohio Copper Company of o Utah Utahit ' it 1t BIngham Here BInghamHere the compiny comp'lny complny ' Is winning winningcopper winningcopper trom from the tbe earth that 13 Is toolow too copper low grade - i to tA be t mined rtl rtlnd nd In iniHA iHA the lltmll lltmllmanner usual usualmanner manner Ycari Year " a aso o the Ohio Cop Cop- Copper Copper - per company mine I ] copper ore atBIngham Bingham by the ortha lox methodot of tunnels and dr lt ft " through the thea a . , , ni , _ _ rn _ tho the ores ; s s"th "th th "theU " the e-U e U eUomp'lny - compiny omp'lny omplny ' \ nas as torceil forced tol to'leave toleave ' leave a vast amount ot of low grade dlscemlnated ( through the rocls roclsthat rocl.sthat roclsthat . that \ ftould ould not bear tha the expense of ofmln otmin mln ngThe ng ngThe The property proprrty was not ad'lptable adlptable adiptableto ad'lptableto ' to the open cut methods so a proc process process ess of leaching was applied using usingthe usingtha the old workings to collect copperin copperm copper m solution Water solutionWater was sprinkled on the sur surtace face to add to the normal supply supplyprovided supplyprovided provided by rains and snow After Altertha the water has percolated through throughthe the masses ot of low grade ore It has haspicked haspicked picked up a certain amount ot of cop copper . per In the oil 011 underground work workings workings ings tanks have been installed thatcatches that thatcatches catches a certain amount of this thiswater water In these tanks Is placed a cer cer- certain certain - tain amount ot of scrap tin which whichacts whichacts acts to attract the copper from the thewater thawater water The copper thus attracted attractedsoon attractedsoon soon turns the tin to copper and andafter andafter after the copper Is taken from fromthe fromthe the water It Is pumped back to the thesurface thoBurtace surface and permitted to percolate percolatedown percolatedown down through the ore agaInThe again againThe The system ot of precipitating cop cop- copper copper - per trom from water which washes washesthrough washesthrough through copper deposits Is 13 a com compra.tlce cornmon ' practice pra.tlce pratlce , . but Ohio Copper Is IsIthe Isthe Ithe only place where It Is known knownto knownto : to bo be mined undergroundI undergroundPrecipitation underground undergroundPrecipitation I Precipitation is said to have been beendiscovered beendiscovered discovered by a miner living near neara neara a stream which flowed through a acopper acopper copper deposit Tin cans that he hediscarded ha'discarded hadiscarded ' discarded Into the stream were soon soonturned soonturned turned to copper and unknowIngly unknowinglyhe he had discovered a process which whichwas whichwas was to play an Important part In Inthe Intha the production ot of property and the theconservation thaconservation [ conservation ot of our ur resources |