S" - - - - 0 ' 011?'- - ' - : o''' ' - -' Z F ''' " -T4- 4:x '''''''t V :1Itco '42'1 ) " O''::-- §' 1-- - 'i- I CP1i 0! - I ' i t4 ''$):-- - - : E: - " 44 -: '' ' 441 'for is2 t:6 C117 orzo -so L41 t ' -4-- - Forty years ago men began moving a riountcdn of copper oporordozs got under way at Utah Copper worldnqs — '"e"Itt - — 4147: Lit 1 r4 t111 I 1 aar zhI '' A aaa a :: 7 -- - 7 - 'I --- fi 7 ? ' :: : fr! - 21 -- 4 00 s5:ar' 1"! :'''i 01"' q0) t A "tgal° (7 — - 4'"k74 -' 4 I t ' - — elr ' — S )6 A ': — ' 7 - eil°r - --k- ' P't - 4411:AV -- ' - - ' ma' —"'--::-- JP - - sho Pei takes lust ten scoops of this n from the with ore blasted hill car load a electric-powere- d 100-to- t - '"r:''"1r7ge4e r° ( t ' - 41111N 7ik"4 1 - "'le (010r:plo—' coa-- s 0 --------- ----7---- CC r' lit- -- 1 - 1 - rdillo-i 6 1 1 1 I 4 11111i - (In I-w- I - t: r t ) 0 t t 1:13' :: - - om i'l -4- r-- - :04 - -- Grect elctric locomotives of 33oo horsepower recently added to the equipment are the largest of their typo ever built mononmaineftweR —! " Alk& 1 1 1 - 1 LL- f : 7 z """-sogi'- i 0' 1 n)4004 V (It Jilt z i 11 ' :—4 : - i4 11 -- - - :' 4 ikItt r14i ' t ' 7'4' 4e "!---s4- ' 4 i ' 1 ' "t ' ' ' ' - (if) '41e) F- ''''''''f 4 ao w' 41""-- 1 ) a - 't - 4 i: i 'i L : it 1 - e 1tre la ift "'::kNba-- l 7 4' - ":'k oft 160 P frr- ' ' - r----- ILN 17 - ft t2 -- - - -- -- - --- 74 : a ' : 04 ZMILNInommmonsommoommommononnonrwilmomminommimminoL 4 6 41wo As one level bites into the mountainside railroad tracks to" Ikaolowm-'4- cre quickly oved closer and the operation continuos - NI 141 T ( I lit - ' 04 -- 1: ve mills Here the ore cars are emptied by being locked onto a rotary dumper and turned upside down sending their 100 tons of ore roaring int othe gyratory crusher This reduces the ore to pieces not more than six and a half inches in diameter and conveyor belts take it into the second crushing process for further The ore becomes reduction progressively finer until in the ball mill it resembles nothing but a stream of muddy water In fact it is so fine 80e0 of it will pass through a screen having 10000 openings to the square inch Chemical reagents are added as the "feed" goes to the flotae affairs with tion cells 'Et " 1 1 - )0 ' ' 5 ''''' ' 0A:" 104 71-- 2- l' ' 6I? - tm : ' --- 0 ''Ti' j - ' I : ! ''''444Cd $ 1 1 1- — m - - 44'11r) - 7 F 0: -' - RE : 441 '' - ' )054s saamoiL--- ) :-- - - 7'"'V — t t I' - 4 'Y"''' It 4 A - 1 11111' - — 6 6 ' 4" t1 '7 rig Sr 4 441 A 4retk A 1:Nmt tAll kr ' of i - e- - rem- ttd I - 14'f:: t -4 -- ' a great open pa with much of the mountain is I Pe - "4mas - - 4e 1120066 'Sok - criToandaty bringing the bill to around $6- power shovels loading ore tredns from mcmy 500000 on federal and state asr7:717'Sn sessments 10 the from Jan years During 1 1937 to Dec 31 1947 the company paid over $96600000 In' wages $128500000 for smelting freight and refining $152200000 in taxes and $159500000 for supplies and other expenses The tax bill alone would provide jobs for 38000 men at $4000 each for a year It has constructed a power generating plant at Magna costing $10000000 plans tr lay $4000000 worth of new trackage between the mine and the mills and has added seven of the most powerful electrically operated locomotives ever made to its equipment at a cost of $107- 000 each It is a monument to industrial motors at one end which turn impellers inside These agitate the flotation feed ands with the addition of Another chemical produce a froth of bubbles Another chemical coats the small particles of copper which cause them to attach themselves to the bubbles that float over the lip of the flotation cells The product then goes through a process to reduce its water content and the final product copper concentrate contains 35 copper The worthless material settles to the bottom of the flo tation cells and flows into the tailings pond The copper concentrate then goes to the smelter where most of the remaining waste is removed and blister copper which America an 'achievement that has added greatly to the material economic and social wealth of the west and the world rrHE Ohio Copper Co It estimates that more than $16000 is ihvested in plant and equipment for each person employed and that over $11530 is plowed back into the operation each year to keep him on the job Each normal year the corporation pays taxes of- approximately $2400 'per employe pounds of copper in 1942 - the silver issue has WHILE before the public for decades there are few people in America who realize the importance of the price of silver: in connection with the production I of copper lead and zinc With the exception of the lead-zin- c mines of the Mississippi valley and the mines of that area the discovery and development of the great lead copper and zinc deposits of the United States was the result of of prospecting during a period high silver prices It was the discovery of the Comstock lode in Nevada that stimulated prospecting in the west which uncovered most of the leading -lead 'zinc and copper deposits The three great mining districts of Utah the Coeur d'Alene district of Idaho and the Pioche distinct of Nevada all were discovered and operated as gilver gold producers with of coursein some stimulating development et - :: i :i t "7CORD OF UTAH MINING Metal production figures for Utah 1936 o 1946 Inclusive: Lead Zinc Silver Geld Copper Value ( ounces ) Year (pounds) (pounds) (pounds) (ounces) 723841100 139772000 $48836356 261202190 1938 223444 9997645 870897549 178916000 96002000 411968000 12369117 1937 322759 43745902 67316000 131314000 968'2732 216252000 1938— 200630 62725551 135268000 69052000 343780000 1939 10758657 277751 86585499 151376000 87576000 463728000 1940 355494 12172299 97796623 84098000 139202000 533676000 1941 856501 11395485 113552848 91086000 613382000 ' 143860000 391544 1942 10574955 124562540 93792000 130514000 947934-647978000 1943 390470 111036337 77998000 105038000 344223 1944 565150000 7593075 9001864 67260000 81634000 1945 279979 452752000 6106545 60202627 56584000 61422000 228568000 4118432 1946 178533 Note: Labor difficulties which tied up the Bingham mine of the Kennecott Copper Corp for six months In 1946 reduced Utah's metal production by nearly 60 per cent for theyear I t ' 0 7 - I - ' ::- A :: -- ) 1 7! 1 - 7 7 ' - - I4' " k: - ti ir 'r: 1 i C :'- 1 t1 I't I i I $: i 11 - - '!:'s '''! '9 : - V ' ''' 'TtE - :' !''' s '1 - 2: $ 7 lk I IF i - ' f i ' ''5 - ' '' fl In the mill twin conveyor belts five feet wide and B67 feet long transport the ore from Symons crushers to storage bins s 4 I 'i 4 1 :rpt - -- - i 4 it I! II e ! i" ::: :7:It - 1—v- l 4 tx ": i ' - r 's 'k 4' 1:3 "'t- - "i il j4:t1 " 7 t "A- 1 I of " liNos 40 t - '' I t - ' -- 1 eJ 1 7 : ! ' ' ' - 4 !' i It i ' - I ' I 4 ' ' ' ' 1 1: ' 1 11 I s I 1 ‘t :-- k ri 4 41: 1 ' t:14:11:t) ti(i:l 11 -- 4- - ' : 4 ' : a - - ' 'f 1 14 1 1 ' '':-- i ' S 0"t 44 : I 4 i' :'1" 1 4- f t -- 3 '5' - tg' I) - — -- '4 ' i X I Fr L 3: t ''' 1 1 k ' 7 r r! I- 5- 1 rii 'I1-:-''''- I I : 1 i 1 k - 'V-- 01 '1 -- 14 :ILI is ' - I' '' to ' (!: - i 4a "l p Ir'-- ' ft7 1 elr k ''it: I : Or ! 1 ' I ii 1 ''1 tt ": - -' - I i 2 V F A t i s :- - i 71 1 T i '''''7 i r ' i z r:L---:- 'A e - : i 1 1 i' k IT-- - k - - 1:4 ! 1- - f- e-- - -I 16- '''-- - ii i - ct7724711j?r:7-777-727:77---- ki I serves of lead zinc and copper materially by stimulating production in these workings II ::r'''''''' : ' 4- ka 7:-14- - - :' e - - 7 4 - t1 4 - - v! t I lk - Ore is reduced as it passes through a series of 60 ball rains which grind and 17verize it until it is virtually a powder -'7 ---77---- 7-- - '' t :St :: ' - - - i s'i- i a-- i ' ':l -- ' 1 :7 z ' - '1' ir- - ' 1 i I i ' II a: t-- -- 't ' :: i"1 - ' I 1 ' 4' - '''- - nt--- - 1 't J q 4 4i ' i - i - r 7 -- ' — ' 4 :'A'5 4 k ' 'V ''' - -- i'! 4 ' Wall101 t1 ' fk - - 4tk-- N i'? ' 4 t " 1 1 7: - ' ' dfr - -! 1- — "-- '711 - - i 14 40'‘ t - i I - — J:C""t ?t 1 ' I- --- - t '' 7 4 - - LtvYYmkY04Y--6t'---9-- 44 - t ' - 4 - ?- Zii'y'C-Yiiyt- 7Z-F10-- i'-N- (0 - --- -- - ' ft§3-4:a-- -- 2 - -- 777----- ' - produced 226668134 ozs of ver having a value of $161838- 653 or over 7c per lb for every pound of lead produced During 1941 which was the last normal year before premiums and gov- The industry thrived until the oxidized portions of the lead-zin- c Ore bodies were exhausted and development reached the sulphide horizon where the ore contained enough zinc to make the cost of smelting prohibitive except in special cases At that time individual mines did some of their own milling as the flotation process of concentration was developed However it was not until custom milling - ti r :: 1 A-f- i: - ' 2 ':! sil- areas e - e- e -- - ? ernment controls this district produced 38188500 lbs of lead and 3271199 ozs of silver having a value of $2326186 or over 6c a lb for all the lead produced During the year the difference between 71c per 07 and $129 by per oz or 5 Sc was netted the government as profit on the district's silver production This amounted to $1875295 or 49c per lb for lead Records of the other great producing areas read much the same All show that the silver content in the ore played a very production Important part inmen to point This leads mining out that consumers of lead have h4ad more benefit from the silver contained in the ore than the producers themselves and to maintain that increasing the price of domestic silver to $129 an oz would result in higher lead production at a lower cost They also see the $129 price as an incentive to prospecting and developing new ore bodies It also would make available lead zinc and copper reserves in older mines that are too low in these metals to be profitable at any base metal price but do contain enough silver to make operation profitable at $129 an oz This price would increase the re- ' 0 t was established for the treatores ment of complex lead-zin- c that the industry took a new lease on life for instead of penalizing for zinc the mill paid Cost of treating low for it grade sulphide ore was such that the lead and zinc recovered would not have returned to the mine operator enough to pay the cost of mining freight and treatment had it not been for the silver content of the ore As an example: From 1807 to 1941 the Park City district produced 2287946834 lbs of lead Along with the lead it -- - - - No54- ---- - - Lead Consumers Have Silver To Thank for Supply 4! - -- I- low-gra- de This pure is produced of America's constitutes 30 total supply of newly mived copper Kennecott employs innormal times about 2000 workers in the Bingham pit and another 2000 in the Magna and Arthur 3 1 i employs the leaching in place process in the treatment of ore This is accomplished by pumping water to the surface and permitting it to percolate through' the disseminated mass of copper ore As the water passes through the ore it picks up a small amount of copper which is carried to a tunnel where long troughs filled with scrap tin are maintained As water passes the copper-bearin- g over the scrap the copper in solution adheres to the metal and is extracted from the water In addition the Company operates a tailing retreatment mill near Lark which extracts copday per remaining from early millreduction operations when ing practices were less efficient This operation yielded 2208305 A i s is 99 concentrators T 4 ' ""11 ' 6 ?-- 4403 - '""log A 104 - ' 1 k4 r e vL - 474 IFt O 44–P t 4 a 140Am 101'- tV-- IV' 404 F 4t leile4'"- 11 v' ' '331rf'' Z e -- I'°- t 14k r's11Q Ira t ' "441 '" ) 44--- 0 44441: A411 4 1 f gM&VS1040 Y"- iettemonomom box-lik- - - '''' ' 4 4 I For this operation Kennecott employs a battery of 42 electrically-powered shovels each caof pable handling around 8500 tons of ore in an eight-hou- r shift operates 131 miles of mine operates the Magna and standard gauge railroad at the Arthur coneentrating mills having a rated capacity of 80000 tons per day besides supplying a large percentage bf the feed for the Garfield smelter The ore is low grade Milling and mining methods have been improved to a point where ore containing an average of less than 1 copper yielding less Ihan 17 pounds per ton is processed at a profit That profit sometimes is less than 5e per ton Ore is broken in the pit by blasting loaded into 100-to- n railroad cars and hauled 17 miles to the Magna and Arthur bills Here it is reduced to concen- trate containing about 35 copper These plants having the calargest combined milling cover world in of the any pacity about 1500 acres and are built so gravity flow can be obtained for the ore as it comes from one step to another through the by-produ- ct 1 ' '''''''''''''' jp 111 41- - t oikirwir : ' - --- - - t"'"- 1 - i ! 1- -' ' 7 ':- f 7'1' '2 - ' ' - 9 :(1:3 : t k t ' - ' -- -- '''' - i1' : ' 4 ' - - a - ' 1F' 4 I '':::: ' - 1 - - 4 ' - t 2' - '':--n''''' ' - - Li - - '' i 7 ' 7$ flocrt off the 1 per cent copper content send99 other per cent of waste to the'huge tcdlings pond ing the notation cells - -- Tv - 7 "' ' 1 4: 1 - o'' e 3 t :' ':'41''' 2'' e: z ' i :: ' S: :: t- : i1 ' '' :::- t ' ll- Ai' - ' ' ' : '17- 5:1 - ''1 3 ' V C :d A 'W :'''!7 "!''' ' 4 21' k:: ' i:'' :E'lt :i' ''' ' 4 : '' -- ' ' f'0411e'Wof 4 ' !:''' c 16 ir 44'& ' ''' T : "U'11: - 0 '' ' 'i - ''''40' ii744 $ t L '1 4 " ' 1 - - 44' '' t- 3 ' ' 1 ' tA t'Y'341' 'rIfr 1 - ::::I: - - L - - t 1 614 000000 pounds of copper That is enough to make a copper wire the size of a lead pencil 6430800 miles long which could circle the world 260 times properties Besides Kennecott the only other single copper producer in Utah is the Ohio Copper Co operating the Columbia group in the Bingham district The National Tunnel and Mines Co' Bingham yields more than a million pounds annually as a of its operation nEVELOPMENT of the Utah Copper mine in Bingham Canyon and revolutionizing of the copper industry can be credited to Daniel C tackling who as a young engineer was convinced that processing large 1- 4V 4 I 4 A07's - Idaho mines produce between 2000000 and 3000000 pounds of copper annually More than three-fourtof this is recovered as a in the ore silver treatment of zinc-lea- d ore ore and lead ore from the mines of the Coeur d'Alene region The Osburn tailing plant in the Coeur d'Alene district was the largest 1948 producer followed by the Sunshine Triumph and Polaris 10 C '' 1 - f ''- I re--mo- -- s o- 40Se 2‘) o - 1- 4) - r ! ' bI'')‘A ' Ike: V ei ok s'Alb 7 1 -' i 7'- - t mill of enterprise financially 1000 tons daily capacity was constructed at Copperton in 1904 and underground methods were employed during the first two years of operation primarily to check sampling The first steam shovel went into operation in 1908 and the world's greatest open pit copper working was launched in earnest In the 41 years since a huge bowl has been carved out of the Oquirrh range Its excavation area covers 830 acres on 43 levels averaging 87 feet In height and from 70 to 250 feet in width For each ton of ore mined it is necessary to a ton of waste To date 'more than 602000000 tons of waste have been removed to mines around 514000000 tons of ore yielding more than 8600- - development Up to the present the west has been occupied with the development of the primary mineral resources From now on the industries growing out of these resources will bring closer balance and more stability to the economic structure of the area Copper the "everlasting metal" that goes into the manufacture of a thousand and one articles continues to lead production And the great Bingham Utah open pit mine of the Utah Copper division of the Kennecott Copper Corp ' is the world's greatest producer its output at the close of 1947 aggregating in the neighborhood silver-copper-antimo- ny C) vs'4 ! e '4 I that they agreed to support the A ct sk e Spencer Penrose and R A E Penrose of Colorado to the extent hs - -- 4 I i ( I kt ( i r--k ilt - III iiir 1 - t ' 400 tonnages of low grade ore could be made profitable Believing the monozonite porphyry of the Bingham district could be made to produce copper in paying quantities Jackl ling interested Charles MacNeill GREAT mineral deposits of the Intermountain Empire' have produced approximately $6000000000 in the century of their development following discovery They continue to be the source of much new wealth each year More important however is the role metal reurces are playing in industrial THE VEVADA produces between Ili 100000000 and 110000000 pounds of copper a year worth between $14000000 and $17- 00000'0 This comes chiefly from the Nevada Mines division of Kennecott Corp working the Ruth mine and the open pit mine at Copper Flat both in White Pine county and the Consolidated Coppermines group at Kimberly in the same district at a time from the znin to the millat Magna hcoodling 1 150 cars per day during peak operaUon Ul ft - - ' ' i - " - ri product running less than 1100 of an ounce per ton of ore Its gross income from the beginning of operations in 1904 to the close of 1946 approximates 1400000000 haul -" - - - 4'2" ol of 8000000000 pounds 't In addition It ranks second in world production of lode gold' second in molybdenum and sixth In silver It is the greatest mine in the world! Its importance as a gold producer in recent years is because straight gold mines were closed during the war years In fact the yellow metal is strictly a by- 't 'Truing 4 400 - : 411:1::kii:: ' ' " - - - 4:is -- r- ' - Dne Third of Copper in US Comes From Utah Mine - f 1 - - - WiieW)4- y s : I i 4I 77 : i I ':sti L ""'' r t lshowili r' 7- 14i--It- RIF"tt17 741t41frl" s7 Itc-mYo- )11'ey 14114"cikl c: 'i-- 114:' oOrrifr - - PROMOIEMMIPM -- 11 s' - a"TT- - °L' AO"W- 10--- I : - - aosertroaw '( ' 411 N t b mai 1:- F 1 ti r Nt14r e— e - '1 tof 1 N 4114111: a ''''''' '''' - 1 1 t I e 111 vt ' ' Tcosro 1::--1!jr:e'‘- Mo k‘ - -r s- 4itcali'0r ''''''' ann p cMMIP - ' : : 1 -- - -- - f-- s GREATEST ff'' tI '1 40'eteim -k i f" 40-11-0! 3 11 - w F 1 SECTION THE SALT LAKE- TRIBUNE Sunday January 18 1948 EMPIRE EDITION V- 1 4 Great filters remove the water from the feed and produce copper concentrate which 11 smelted as the final process 4 - tr A 4 - WtAttcterg 44 AttlprturytIttai tJ