Document g2JvV2QqgDXokmO460baZLbOV

J, A. galley I. 0. Lovlch Wfr 001435 Vv * 06016557 February 2, 1963 Rom Office I PLAINTIFF'S (| EXHIBIT I WRG-413 _. Libby Asbestos Z tmU Ilka to outline whet our original ichoAili mi ot ubtitoi, hri we iuM M It aad obit m foresee for a lebtduli for tko eoolai year. Tho diolilM mi node la March of 1942 to pursue oa asbestos program la chat yoar beginning April 1. It wua anticipated that laboratory work would bo dcaa ialtially gathering information which would bo wood to oaglaoor aad coaatruot a pilot mill vhlah would begin operation about leptaaber 1. From tha pilot plant, laboratory Metallurgical data would bo eeaflraed. Kaglaoerlag aod coat data would bo gathered ao oagiaaarlag would bo bagoa la Oocaabar to ooaatrwct a productioa plaat baglaalag tha apriag of 1943 with tha ochadulo for it to bogla oporatlag ie dapcaabor 1963* A cootract woa algaad with tha laduacrlal laaaarch Dirlaloo. of Washington State dverelty la Juaa with tha thought that thay would work coocurraatly with ua oa a aatallwrglaal proooaa for fletacloa recovery of traaollta. At tho tiaa tha pilot plaat vaa built la our dll building, tha prograa aa developed la our lab showed bat tar proolaa thaa what V80 had caoa up with to that tla , al though thla would have boaa aapactad bacauaa of tho relative tlaa wo aad thay had put la oa tha prograa. Tha pilot plaat was iaatallad la tha dll bulldiag aad aa various ccapoaaat* wore ready for operatlorn wo bogaa oporatlag thaa to gathar data. Tha aehadula oa thla woa ao--what hohlod aa tiaa aad It waa aot tatil Octobar that aay ruaa bagaa. 3 laca that tiaa tha plaat hae boaa rva to gather data on cqulpent In uaa aad to teat tha flow aha at aa originally daalgaad and iaatallad. while the flew sheet raaalas essentially tha saan, sows change* bay# boaa aada aad oora vork raoaloa to ba dooa to prove it out. Zaforoatloa gathered has boos all through tha circuit starting with feed to the dll--crashing ora to datoruins bast else to feed tha uill, feed bln and feeder arreaguaaat to dll, initial screening whan oro received in alii, secondary crushing of oworslsa (/ 1/2 la.), claaslflcatloo of -1/2 Inch Material. Freo there it lo fod by dlac feeder to dlec pulveriser (currently); poevlously it van red dllad. laforoatlon waa gathered oa each aathod. Mora laforwntlon ta oaadad both oa costa of operation aad variance la oatallwrglcal results In preservation of verdculite. At this point ia our present acheaa free a Metallurgical standpoint cha dlec sill will be tha beeter unit, although we do aot have sufficient iafrraatlca to yet to know whetker it ia the nest a cowontc wit. If the WS0 flotation echaaM can be refined to tko point whore it ie superior to our schono, probably tbs rod nlll will bo tbs aooe desirable. 101219 0165S8 J. A. Kallay Pag* Two February 2, 1963 After the grlading stage the material la p\Mpd to tha Cop floor, the alias fraction la tehee off, anc to cha Bird for recovery of the flaaa. Tha eoaraa acarlal la aaraaaad oa a 14 nesh acraaa Co recover Cha veraicullte. Notarial paaalog cha tcreca la cablad oa a Wilflay tabla, vhara aoac of Cba pyroaaaa la aaparatad, cha alddllag chaa goaa to calla. VoTk haa beca dene with both Callghar aod Denver calla, aore work reaeiaa to ba done at tkla acaga. Wa have aoc baaa able to gat Cha raaulea froa cha calla la Cha pilot plaat that wars obcalaad la Cha laboratory. Probably aoaa call ; daalga will have to ba doaa for raaulta from aalthar aac of calla la aatlafactory. Za aaaaactlaa with calla, work haa alao baaa doaa oa ralatad ltaaa aweb aa coadiclooiag, esrubblag, acc. Mora tlaa la required to prove out raaolta aod gat raaulta that are aaclafaecory aa to racovary aad olthio ocoeoale liaica aa ca uaa of raageote.' A Bird Caacrlfwga ia la Cha plaat oo a laaaa baa la. Thia unit haa proved chat recovery of flaaa freo tha allow feed eaa ba aoda. Both allaea aad call coacea? txata have baaa eaac co thla ualt for taatlag. With a atralghc allae feed, a dlaaharga of product coocalalag approaiaetely 301 avlatura eaa bo obtalaad. lowever, raaovary of product frea cha Bird ia aaly about 301. The prlaary reaaoa for thla la tha entree* dilute oatarlal which la fed to It. Tha feed oo atralghc allaaa eontalae only about .31 aollda. Base oeaaa of faadlag cha oaehlao a higher percent aollda food ouat ba davleed. Thera are mom Idaaa aa eo how thla eould be laproved, but will taka tlao to carry out teaca. Incidentally, whan call cooceacrate la added to the Bird feed, thara la apparently 1001 recovery oo thla aad tha diecharge lo at a higher degree aollda thaa tha atralghc allaea, which ia dealrabla. A coahlaatloa of the coo eecae to dlacharge at aboot got aollda. Aa eaglaear frea Bird Machine Co. apeat aavaral daya with wa thla aoath aod aet up a aarlaa of tosta to chach efficiency, capacity end utilisation of tho aachloe. lot all of chaa were ceapleted before be had to leave and should ba run when tlaa lo available. Tha dryer la Installed aad la operating condition but Co Chis clae no product has baaa put throagh it. Tha praaaat aahadula la to run tha pilot plant to aake eaaplss during the next two weeks aad tha dryer will be rua during thia period. BoeM drying teete have been conducted, feaples were put Chro- gh the tellings alll dryer, eeaples were seat end run through e flesh dryer at Coubuetloo Engineering Coupsey near Chicago. Saaplae will bo prepared aad forwarded to C. 6. Sargent and Soon in Massachusetts for taatlag results In a bolt dryer which they Manufacture. Iacldcatelly, thla Is the type dryor used by Asbestos Corporetlon Ltd. ia their wet process plaat. *01220 06046559 J. A. 1*11*7 PegeThree February 2, 1963 Froa data gathered la the pilot alll iom coat (capital and operating) aatiaataa of a vary preliminary nature have baas prepared. These are extremely rough aad era data auac ha gathered so they caa ha recalculated. Ob a predaetlM baa la right now, weigh lag probleae at the aloe aad milling, it la oar Jadgmaat that design should be baaed oa a 3-coa par hour basis (although wa have also calcalatad for 7 tons). Ob this design, it could be passible to produce frsa 2 to 3 tOBO depending oa grade of ora aad recovery. Balov 3 teas par hoar it vovld net be aa economic operation, above 1 tons it would be. At a design below 1 tons capacity with what information we have available, we do not believe we could design for nock less capital coat, nor do we believa we eould prodaco a product at a profitable east. With nor* deta this belief could change. Ovr eatieate oa a capital cost of a plant of this sine is 6660,000 with nothing iaclednd for a transfer point, which would probably bo nocaaaary if we went into asbestos prodostien, aad uaing ona or two of ths pres ant varalcullte Bill fead bias. Wa hava triad to gsthsr such information ns has bats availabla oa ths asbestos operations whlsh have bean or sra being built. What wo have gathered la oa the' plaats la California. While the articlee we have seen are of quite a general aature aad at times are la conflict with oss another, sobs doflaito information can bo obtained from them. Jeffcreoa Lake eeeme to be the largest operation. This la a chryaetlle operation producing gradao 4, 3,6 aad 7 so is really met comparable. Coalings Asbeetee Company, the Jolet venture of Johaa-Murvllla end Kara County -Lead Company, will produce oaly.group 7 aborts by dry process. One report etatoa that they will prodoes 12,000 tone annually, another 23,000 tons. This would bo an hourly capnolty of from 2 to 4 tons depending on which figure is correct. However, all raports state thalr Bill investment is 61.3 million. This psst oesk there apparently eras s release stating that the Huclear Division of Onion Carbide Company is going to build a pilot alll at King City, California, to utilise short fibre ores from the Coalings area deposits. The purpose of tha plant Is to roaovar ths shore flbrs asbestos and build s market for It. 1 have sacs asthing la print no this. At say rats, wa do not feel that wa now have the data to eeginoer a production plant for tramelltn asbestos. Wa lack data both of a metallurgical aad economic nature. While we have mod* progress both in tha laboratory aud in the pilot plant, wo have net accumulated sufficient information fast enough. It may be that vn wont to tha pilot plant sooner than we should have from the laboratory stage. 101221 06046560 j, a. Kallsy Pag* Four February 2, 1963 Tba verb ae VSB shows prowls*. They baa* actually com up vlth a brack.through la tba flotatlo* of aabaacoa. Bovavar, bar# agela ebay do mot bava aufflclcat laivrwecle* to b* pit t* practlea la our pilot pint. Mr* Jackal of usd apaae two days bare two oaoka ago obasrviag our pilot plaat aad working vlth Oaa oa our proaaaa* At that tlaa ba could oat acata whoa ha fait hla work would b# far aaougb aloag oo it could ba traaapoaad to our pilot will* Ba did faal that this could ba dowa but would probably taka Craw oaa to two aoochs, aaelaatad. Aa tbla ask ms la a possibility, It daflaltaly should ba gives a abaaa* la oar pilot plaat If possible, before flaal daslga la wada. Because the schwa differs from ours, flotatioo of trawolito wo* flotatioa of varmlaullta* dapaadlag oo which orb awe is weed would sake saws dlffaraoaaa la th* flow abaat. As wa foal'a daflalta need for aora lad erastlot* exists aad oust ba ahtaiaad bafer* a plaat caa ba Justified* a review has beaa coaductad as to a sahadula for obtala. lag tbla lafonwtloa. It is the eoacaaaus that ala aoaths tiw* is required to aawplata tba tests oecaseary to gather aad evaluate the data* At that tlaa wa should know the aatallurgy aad ecooowlcs of tho proseac schawa. Va will kaov what recoveries are aad vhsthar wa have aa asaaswir process* Tba data will ba available aad relatively accurate coats of produetloa aaa bo calculated a* wa caa kaov whether wo earn profitably produce at various levela of production* Matksr It bo 1* 2* 3 toon par hour or at sow other figure. Za other words, a braak-avea polat of productlea can ba dstarwiasd* Thar* will ha aufficlaat eagle* aarlag data to ha able to scale op to a product loo uult of ahatover else desired aad va will ba able to co^vt* tho sapital ooat for o produet low Bill of a speci fied alas* These tblags oa era uot able to do aow with say dogrse of sccurssy sad to justify a aill oust ba baowu. BDLohick/jbg e.c. 1. A. Blalch 101222 J. A. Kelley Page Four February 2, 1963 Tha work at V88 shows premia*, They havw actually coma up with a break-through i the flotation of aabaacoa. however, hara egale they do wot have sufficient Information to ho pot to practice la eiur pilot pleat. Mr. Jackal of U10 apaat two deya hero two waaka ago observing our pilot plaat and worklag with Daa om oar proaaaa. At that time ha cowl* not atata whoa ha fait hla work would ha far eaougk aloag a# it could ho transposed to our pilot mill, la did foal that thla could ho dome hut would probably taka (ram oaa to two mouth*, aatiaatad. Aa thla Him* la a pooalhlllty. It daflaltoly ahould ha given a ahaaaa la or pilot plaat If possible, bofora flaal daalga la mada. Because tha achmm dlffara from aura, flotation of tramollto wo. flotatioa of Tarmlaullta, dapaadlag oa which schema lo wood would make acme differam*aa la tha flow cheat. Aa wa foal'a definite need for more Uf ormatloa axlata and meat bo obtained before a plaat caa bo Justified, a review kaa hooa conductad aa to a eehedule for obtainlag this laformatloa. It la t ha eouaamaua that alx moatha tlma la required to aamplata tha taata oacaacary to gather oad cvalueto the date. At that tlma wa should know the metallurgy aad economics of tha praaoat schema. Va will know whet recoveries are and whether wo have aa aamwml* proemsa. Tha data will ha available aad relatively accurate costa of productloa sea ha calculated aa wa caa know whether wo caa profitably produce at varloue lavala of production, whether it ha 1, 2, J toms par hour or at some other figure, la ether words, a hreek-evea point of prodaatioa caa ha determined. There will ha sufficient engin eering data to ho able to scale up ta a prodaatioa wit of whatowsr also dealrod aad wa will ha able to compute tha aapltal east for o prodaatlom mill of a speci fied alas. These thlaga wa ara mot able to do mow with any degree of accuracy aad to justify a mill suae ha known. IDUblck/jbg a.c. A. A. Blalch o D o o 00 * i J. A. Kelley ! 0, Lovlck February 2, 1963 (Vmm Office Libby " - sZ3 PZ>L o_- cCoD r_ <-**'< n 3 *:= tB =* CD o"r g " 3 33 ^=f We5: p53i ft- cr Aabeatoe 1 *m14 Ittt te NtlUa lut our original icWAile u ea eebeatoe, vhare we iuef it aad (Alt we foresee for a loMule for tke eomlag year. Hm 6m1i1m wee made la Kerch of 1942 te pwrame ea eebeatoe program la that year hcglaaiag April 1. Ik wee aatlclpeted chat leberetery work would be deee ieltielly gatherlag lafarmetlea which wewld be weed te aaglaaer eed ceeetrwct e pilot will which wewld begin operation about Kepteadber 1. Frew the pilot pleat, laboratory metallurgical date would be coaflrmad. Kagiaaerlag and coat data would be gathered eo owgloooriag eould be begwa ia December to eoeatrwct a prodactioa pleat beglsalag the apriag of 1943 with the achedale for it to bcgla operatlog la 4eptester 1963. A coetract waa algaad with the Xadvetrlal Kaaaarch Division. of Washington State VWlreralty ia June with the thought that they would work coocurreatly with wa oa a aotallwrgiaal prooeaa for fletatloa recovery ef trewollte. At the tiaa the pilot pleat waa built ia our will building, the prograa aa developed la awr lab chewed batter promise than what V8Q had coma up with to that tla, elthough thla world have beaa expected bacauae of the relative tiae we aad they bed pwt la aa the prograa. The pilot pleat wea laetalled la the Bill building end ea various components were ready for aparatioa wa bagaa operatiag thaai to gather dete. The schedule oa thla waa eoaewhat bahlad ea tiae aad it was aot laitll October that any ruaa begem. 3laca that tiae the pleat haa beaa rue to gather data oa equipment in time aad to test the flaw sheet aa originally designed and Installed, while the flow shaet ramine essentially the seas, sows changes have been and* and oore work rare Ins to ba doom to prove It out. Information gathered has beaa alltkrough tha circuit starting with feed to the 111--crashing ora to determine bast alia to feed tha will, fssd bin and feeder artaeg--eat to will, initial screening when ora received In will, secondary crumbing of overalls (/ 1/2 in.), claaslflcatloo of -1/2 inch material. Prow there it ia fod by disc feeder to disc pnlvsTlsar (currently); perviously it was rod alllad. laforwatloa wee gathered on each method. Norm leforwatlon is needed both oa coats of operation nnd variance,In metallurgical results In preservation f vsrmlcullta. At this paint la our present schcaw from a matallurglcal standpoint the disc mill will ba tha hatter unit, although wa do not have sufficient lnfcrmetlrn as yet to kaow whether it is tha aoat acomomlt unit. If tha USD flotation achema can ba raflnad to tha point where It la superior to our sebame, probably the red mill will ba tbe moat desirable. O O O o 00 7 uality of the document eing filmed I M04B538 1 J. A, Kalley Page Two Tsbruary 2, 1963 Aftar the grinding stage tha naterlal la pvapad to tho top floor, the a lino fraetlaa la taken off, aant to tha Bird for recovery of tha flnaa. Tha coarse aw terla1 la aereaaed on a 14 weak screen to recover tha vsnsieullta. Hatarlal peaslag tha tcrean la tablad on a Wllflsy tabla, vhara west of tha pyxoaaaa la eeperetad, tha adddllng thaa goaa to oalla. Work haa baaa 4aaa with both Callghar and Denver ealla, aora work raawlaa to ba 4aaa at thla ataga. Va have aot baaa abla to gat tha raaulta frow tha ealla la tha pilot float that wars obtained la tha laboratory. Probably eowe call ra< daalga will hawa ta ba doao for raaulta frow aalthar eat of ealla la eatlafectory, la aaaaaatlaa with ealla, work haa alaa baaa 4oaa oa related Itawe sh aa eoa* dltlaolag, aarabblag, ate. More tine la required to prova out raaulta aad gat raaulta that are eatiefaetory aa to recovery aad within econowle Halta aa to uaa of raagemte. A Bird CeaCrifuga la la tha plant on a lease basis. Thla unit has proved that recovery of flaee froa the allaa lead can ba wade. Both allaas and call coneear trata have baaa aaat to thla unit for tcatlag. With a straight allaa feed, a discharge of product containing epproslaately SOX Moisture can ba obtaiaad. lowersr, raaawary of product frea tha Bird is only about SOX. Tha prlwary reason for thla lathe extreme dilute notarial which la fad to It. Tha feed on atralght allaas contain only about .31 solids, Soaa wasos of feeding tha aachlne a higher pareset aolida food oust bo davlsed, Thoro are soaa Idaaa aa to how thla could ba layraved, but will taka tlao to carry out teats. Incidentally, whan call concen trate la added ta tha Bird feed, there la apparently 1001 recovery on thla aad tha dlacharga la at a higher degree aolida thaa tha straight allaaa, which la dealrable. A coablaatiea af tho two saaao to discharge at about BOX aolida. An tiginner tnm Bird Machine Co. apant aavaral day* with us this woath and aat up n series of toato to check efficiency, capacity and utilisation of tho aachlne. Bet all af thaa ware completed bofora ha had to lsava and should ba run whan tins la available, Tha dryer la laetallsd aad in operatlas condition but to tH* tlao no product haa baaa put through it. Tha preeeat schedule la to run tha pilot plant to wake aawplaa during the aaat two weeks aad tha dryer will ba run during thin period. Iowa drying taata have bean conducted. Staples ware put thro* jh tha tailings mill dryer, aawplaa wars aaat and run through a flash dryer at Combustion Engineering Cowpiiy near Chicago. Staples will ba prepared and foruarded to C. C. Sargent and 8aoa In Massachusetts for tasting raaulta in a belt dryer which they Manufacture, lacldaotally, this la tb* type dryor used by Aebtstcn Corporation Ltd. la theiv wat process pleat. a O o o 00 J. A. Kelley FagaThrea February 2, 1963 7r date gathered la the pilot Bill icat coat (capital and operating) eatlaatee of a vary preliminary nature bava bate preparad. Theca ara extremely rough aad ora data auat ha gathered ao phey caa be recalculated. Oa a prodeetlM baala right now, weighing problaan at tha nlaa and milling, it la ur Jedgannt that daalga ahould be baaad on a 3-ton par hour baala (although va have alee calculated Cor 7 toaa). Ob thla daalga, it could bo paaaibla to produee frea 2 to 3 toao depending oa grade of era aad recovery, belov 3 toaa per beer it vewld aot be am ecoaoealc operation, above 3 toaa It would be. At a daalga below 3 toaa capacity with what laforaatloa va have available, we do not believe wa could daalga for awca laaa capital coat, aor do we believe we could produce a product at a profitable coat. With wore data thla belief could ehaage. Our eatlaate eu a capital coat of a plant of thla alia la 9440,000 with nothing Included fefr a traaafar point, which weald probably be aocaaaary If we want lato aabcatea production, and ualng on# or two of tha praaaat veralculita will fead blna. We have tried te gather each laforaatloa ae haa baaa available oa tha aabestoe operation* which have been or are balng built. What we have gathered la on thd pleata la California, While the artlclee we have aaen ara of quite a general nature and at tlaee era in conflict with one another, com dafinite laforaatloa caa be obtained frew then. Jcfferoen Laha eeene to be the largaat operatloo. Thla la a chryeotlle oparatioa producing gradee 4, 3,6 aad 7 ao la really aot coaparabla. Coelingo Aabeetee Cowpaay, tha Joint venture of Johna-Hanvllla and Kara County `Land Ceapeay, will produce only.group 7 ahorta by dry procaaa. One report atataa that they will prodeco 12,000 tone annually, another 23,000 tone. Thla would ba an hourly capacity ef froa 2 te 4 tons depending on which figure la correct. However, ell reporta atata thalr nlll lnvaatwant la 91.3 Billion. Thla pact week there epperently vaa a ralaaaa atatlog that tha Muclanr Dlvlaion ef Delon Carbide Ceapeay ie going to build e pilot nlll at King City, California, to utlllae abort fibre oree froa tha Coalloga area depoelta. Tha purpoaa of tha pleat fta to recover tha chert fibre aabcatoa and build a market for It. 1 have aaaa nothing in print on thla. At any rata, we do eot faal that wa now have tha data to engineer a production plant for traawlltn aabcatoa. Wa lack data both of a metallurgical end ecooowlc nature. While wo have aada prograaa both In' the laboratory aud In tha pilot plant, wo have not oeeuaulated aufficlant inforantion feat enough. It any ba that wa want to tha pilot plant aooner than v* ahould have Iron Lite laboratory atoga. <= O 3=> ar~j O D O o oo