Document RJwXX0KZKjY4Zy0w24Vb7e8Ek

ipwp 'wpewflpwppi LI A100A 3 mm ,* LEAD lKDU3Tk:E3 ASSOCIATION 4M UDUfc'STOM AVCMUC MCW YW 17, M. V. ^ *- * Deeeefcor 5 1952 l e a p craiPH. ctrr'rrrrgai i i. 6 BVr fiy i0 ] 1 Attached La the latest "Lead Cbcalcal Construction BalletIn** describing the construction sod perfonaanca detail* of the want aethod for the manufacture of liquid sulphur dioxide* area Prorioua Bulletins issued by the Lead Indiatries Association lend Cbanleal Construction Bulletin No. 1 - Correalvt-e Terrua Lend aa a Construction Material* lead Chatleal Construction Bulletin io, 2 - *The Dae of load la the Pulp and Paper Industry* Lead Chemical Construction Bulletin Ko. $ - *JL-* Developments Expand Dae of lead Construction* Lead Chemical Construction Bulletin Do. fc - 'Load Versus Sulphuric Arid* Lend Chemical Construction Bulletin No. 5 - *Load In Modern CNmleal Construction* Aa long ns our supply lasts, we *111 be pleased to send yon additional copies of this or any of our previous Bulletins. Krartubiln, w ehail continue to eaod ne* Bulletins to you so thit thqf stay bn added to thn narlnn. ^- Isrj truly yours, Becretary LI A10044 Vt $ La d i;;.,-j.ri.\:.:*"A: *?j u s t v s t o m evceux Kssr rest tr. ml y. t - *txx: u j .o erccxrcTs b w o m -SIATION teesir 5, 1?52 t - - r--------- *. cr'-TT'gTH ~r r eslfh * >.rid of parser;'- parity U ts.r being ra."B- fKt.Ki cj 4 . ", addle ty th: .:-0.:~.r.nib:. pTvcsi* using by-; :.vl.' y : 1. r c -mo as the asiljl.fir fij.fixi*,,a source er.i dlselhylanili&e m the fc-5i:'i hioa stri-ir.. first put isto eoceereial cparation 1a the fill of 19L7, this m process accesfully utilise* chedeal kr.fi antir-:r.l*l laad u thy chief MtcrlklJ of ei.esicsl eorctru: tior., U>td is ua*4 la tr.l* ins-Vaac# far lie excellent resistance to tie corrosive characteristic? of rulp<w dioxide la coeblnatlee with diaetnylaniline. Cf particular ir.tertst froa the viewpoint cf both design and perfcraance ere the lead nest exchanger coils. ROCKS (See flow DUgrsa) I there ere tao plants in exi*ts%ce for extrectirg pure aulpSair dl oxide fro* lerore dilute roaster gas as by dissolving th du*t-fre*d (U la din ethyl sr.il ire t the Selby, Calif- mis, plant of the Ar-rlc an Svaltlrg end Pe/lning Cccpargr end the Copperr.lll, Tennessee, pler.t of the Tennessee Copper Coopery, The process *s drv*l:pd and patented by E, P. i-loreting end T, C, fitt both of Aacricin Salting er.d ftefir.irg (Fsierrts So. 2,?>S,S57 end t,3?9,C13) end has been licKistd to the Tarrest,* Copper Caepeny, ! 0 In the course of pertlelly co-vcrti-g sulphide or# cone retrates by roasting prior to aselting, consider*:'.# quantity ef sulphur dioxide fee Is produsad, Psrt of this [U is conveyed to the sulphur dioxide plant. After cleaning to reoovs excess eolid foreicr. sItrit 1, the (is setters an absorbing t'-ser consisting of a eeries of bubble ceps sf-.ieh force toe gkS Into lntlMte contact with disethyi aniline, s ,,u organic base capable cf distolvir-c sulphur dioxide, T.-, quantity of g*s that .j .j be dissolved la the r A d'pendj upon tr.e terpersturci the eooler the llynd, the greeter the quantity of gs dl-oclvrd. Conversely, vhon t'.a liquid .i heated the gts ie expelled. During abscrpMor, the Il'A 11,-.id char, -s color fma yellow to ruby red, Increases In tarperabure end so rust b* c* led at intervale by re-cir-ulating through a enter cooled lead pipe coil eituited outside the toeer* After the dUethylanilJre pt*i thresgh the ei-echbing toer It ie asear.t ielly saturated elui eulpour dioxide. | i i i i i i I i ! ) N3088.01 mm LI A10045 * 1 I1 o v 0 To relee th* terroretur* of th* 'precnest' liquid before sending it to the t'-v; r Is Mrr.ift3 jy ctsrrx:s. ?M 1* eccc'cplich'l-d by prsri:.* it t-.ioii.r; h< s>t e::c.v.-.r-.r ceils r.':h e*rp'S a duel pwirpoeei 0:1* to p: t t;.o tt.'ore f: 1 - ~ to t'.s: r'rt;r jr.g iorrr, thus aaving evi t-s i5t:.-r to coc.l the s; * t i - a * 4 . r- 11 ~ 'L6 1+ 4 m. v.'O riritrJr er.-;>`. t t-. . - ' -1... r;-.f - '3 Lt, is tA. . . , <------- v i l : .: The fd-sr3 t:-.rcc^> *hd C of 1. ' . , ? C" air.'- " V ? ? re~V-. 1. Tbs 1-3 :i/l, (..rl-" 1-:.id Iff. - ;*r f. d i, j: hr :*. >,,: iS\; _r, ir-~- it is t;.. .. . d be .:.. i. t"*,.-* f.. :, :.'r l" t6" . T'.'-s Cidh^c' - t;rip- P- ; id - :r p-fs'. ,3 t' jti; 1 a i . Ct;> t-r c;r r cr.". ...ti\ .1 tvi- pr.cric acid reduces its wiicr certsr.t to loss thic. 2> pprts pc? r.21'-)3. The c m now 99,9975 percent jrcra passes to a cor.prcJtor where It ia liqulflsd vc.Cer pr*:turs of LO to 50 psi and atored In 1*rg# eteol tank. Snlpoant from th# plant ia aad* in t&ik car* and in analler container*# tSSCRI?rg or K?UyrT (Taonaaaee Copper Coapany Inatallatioo) A. Absorbing tower and coding 0011a. Th* absorbing tower ia of lead ca.;e-typ# const ruction consisting of 12-lb, cheelcal aheet lead supported within a at eel framework of colucua and ring angle*. Znaide tha tower are 19 bubola cap tray* tad* of 0} per cent antinorJLal lead 3/1 in. thick and supported on bonded lead steel eptdar*. Tha bubble capa each L in. In diaoeter are constructed of antlaonial lead. As the gas la absorbed in tha tower, tha VUX liquid becoses heeted thereby reducing the absorption efficiency, to eoetp-rsate for this the hot liquid is pusped off t Yeriou* levels to be reclrcultted through cooler* M then returnod to the tower. Thee* cooler* ere constructed of 6 percent anti=.T,l*l lead plr-e, 1 In, in diar-ter in the forw of two eoncentrla heli cal coil*, 00* nested within the oth*r. Cooling water is sprayed over the outer surface through a circular lead distributor. After the w ax 1--at voluae of sulphur dioxide has been absorbed, the 'pregnant' 0A liquid ia pumped fro* the absorbing tower through a heat ex changer. B# Heat fetehanger. The heat exchanger consists of four eoU* corrected in parallel with each coll cade up of two load pipes, one inserted within the other as illustrated in tbi dravina on the Inst page. The larger pip* ha* an lnsldt Cluster of } In. with a J-tn, wall thlekr.esa, The Inside pip* Is 1 in. In dlureter with a wall thick-.*** a llttlo leoa than $ In. at th* thlnncet sec tion. Th* exterior of the lruir nip* has been extruded In the shape of a a Lapointed *t*r to provide sup^rt a:.j *1*5 retain eccentricity. In addition, the pipes wvr# d = l.i,ej po that th* areas of the space between the two 1a approximately eq'ual to th# er*5*-ftlf>i.l am* of th# inner plje. After extruinn in 10 and 12 ft, lengthi, u.* aaaller pipe 1s tna'-rted into th# larger and both are then coiled into units 11 ft, in circuaferenct. 1 f I t LI A100 46 * wwmmmnw 0 r\ V../ Q ;0 The saturated ILA oontalntng 15 percent by *olit ef sulphur dlexlda enters the hart ei he.njf-1 t a t* pcrst'ure of 65 ? ar.4 1* calculated to leers t trV'.v 17S ?, w r'.~!n;.*-l Z'A er.t-r* th* ex: r.sr.jera at a teeperSi tu re of 19V5 f ar4 la eaioC&ied to leave at stout 110 }. C. Stripping Torsr, After Is-Ttr- th host each*'!pur, tha * llpd-d ic pv~T *4 to the strlr/ir- ? itiorr-ilors '.'-.ere It la eurl.rr^4 e? f*"t l~ r- "! thrsc'h ttir.le.*9 t *r\ cl:i calc.Vries rum-ur-'-; Vp ri- L.::, la rthavtr. - f.hl re-:*---: Tw stripsip.; tc.:r is *srx i. t: .'.<. - 1 -a the sbserw- ' Ur? ex J t differs In ccnitrsctleit bcls, t-iln s .-.ly of *te?\ alia e lead linin;j the rteel sr.i ltod etc.-. $ 1~. V , A fcc~.ir.4 lead liei? * is nseersrry here because of ths fclf'*-T tK;'c;- - ir.- veivcd. Sui^uortoc e:. ter.. i lead oovcmd steel bar* welded to t : i: tv.sll trs ?? anti -\.lal tr:;-* hcluir j the but bit ccps. After ierrir.; t.a f.: ripping to*?r the voter phaoe" 1* s'p*rst*d Iron the Ci4 liquid. The ferrir le Charged to the r*f cxcrctor for recovery of contained 1*11 snd the anhydrous dinethyleftillne returned to the absorber circuit. 0. Other &julpe*t, laying ef the purified aulpfcur dioxide r la effected In a St-el bubble eap tcwer, the lower portion of which le lined with 16-It laid to terra as a niptrurie acid stereja vessel. The first tray lr. the drying tower is subject to weaker acid and vet gas er.d therefore Is constructed of load as In the abaortlnj and etrt.pfi.nj towers. The upper six trvys and caps ex pose-4 to 99 percent acid are ef steel. Host of the earlllary equipment Is corvrtnzcted of Lead. Claaa sulphur dioxide (U enter* tr.e cyslm through a lr-in. lead duct. Tha weak sulphurlo acid feed tank for tha absorbing tower la a rteel tank lined arlth 16-lb, comical laad. TT.e solution collector fr* the aods and acid cnAtrs Is a caj,e-t;~e vrjscl cade of IJ-lb, c'.ar.leal leal, Tne KA separating tank Is similarly constructed wrlth 3Cl-lb. eherle.l lead. Two other IHA separating tanks ue of steel lined with 9-lb. chaeleal lsad as Is a rtrl;-pr water tark, Ti* aeld dilution tank using rport sulphuric sc Id fron the dryir^ tower and rupplying weak sc la Vo the absorbing tower feed tank is a steel shell lined with 16-lb, chemical lead, lead pipe, an antl- monlal lead pcstp and valves conduct tbs acid to the point of use. tr&Qp-.lA.'Kt Operator's of the Tennssses Copper Company's plant state that, Slaeth.ylar.lllne saturated with sulphur dlcxld* is eeidle sr4 Its corro sive sctlon la sr.tlrcly slsllar to that of weak sulphuric odd. There la no tpeclfio dt* on Its eorr-slon rate available; suffice It to say that there la no corrosion of any of the lead equipsent a;prsr.t aft*r nearly two years service, The Selby plant of A,3.Ut, was put Into operation In October. l?li? with ##entiai:7 the above wjuifioert, excepting the heat ex', anger coll which eras first constructed c / t; 316 stalr.leis steel. In the nidi:# of 1919 tha stelhlsat steel coll felled and w as replaced by the lead coll dexcrited above, Tr>e stainless steel Apparently was unable to wlthstanl the oorr'.slv# i i  M^f wmmm LIA10047 i attack of tha elution *t tfc* tffiperoturaa iirrclard. Tha balane* of tha s'uijesKcit ccnitrjctad larptl/ of lead la rti.ll fvwcviening n orijinaily antliiputad lr.cludiaf ti* brat axcntnjer coll nor ead* of lard. It l lntaroatlr.g tc ta thrt th* atainlea* ft*sl installation did net lest a fill rcr. Cor.brery to navr pip.i-'.r conceptions ats.iala'sa nrsl fa net a cur:--ill ft r corrosion It fcs Its psrtioulsr lor r'i-h it le wli-r. iiad 1-ti as h&3 load but e-ir-e ccrroclcn rc;l- to -.^-.ric at id (tef-w pert ft*.) and CorreeiT# aul i'.,: V*-" 1j t'-: cr.itif concern t-i.rr. lei; 7 c,l netis a'.mld ba considered fir:-. 0 : >h plus cirrosix r*air`-.e~co le ilnandcd tfcaa it la a czr'sn li' t~. -s fitter to coiilis tlja turci.j'..: cf t-iecl with tie aotlccrroti ; r'vlrs cf lead lr, a frr-r rly atrep,'. t load lir.^d Tcrst-1 or a bcr.lcd it ii. lir:3 In thla tarr-er 1**d(* nrxs.-ior corrosion rue tstar.ro s ba twte at: fully a&ptad to a rrrltty of conditions encousiarod in aodarn ehaaical naiaufacturo. CTCTt irrs^yra Chical Bullalia Bo, lit - 3f, Purification Plant* dascrlbaa la detail tba uses of load aa a notarial of eonatructlon at tha St. joaa^i Load CorpaAjr** Joaapfcteam line Saaltar afcera byproduct SOj la harv^xt. Cbraical Bulletin Ko. 20 - co.ntalna a raprlnt of an artlcla hleb appaarod in Chomcal Sr.ciaearlnc* anti tied *Sulpbur ploxida Tarsus Con* atroction lUterlala.* TMs artlcla daacriboa in detail U.a parfomanea of lead with aulptaur dioxide in a rariet/ of installation*. lead* (Tol, IS, So. ), 1950) - Load Heat Bcch*ncr*i pur# nlpter dloxida production utilise* amaual doaifn. Ptotoa and drawings. Land* (Tol. 19, So, ?, 1952) - Kodarn Load Construction la Saa*t Liquid Sulphur Dloxida Plant. Ho toa and flow diagram. ; f 1 LI A10048 S554 :r>? 0 UQU'O MMV OKMJtrt *m.Uf*CJuM 10 ft*i|T |Mt(THTkMHU<H tom*? r*OCIMl ft m ou k mw m* m) LEAD INDUSTRIES ASSOCIATION Mtlu*OTO *vt T IMMf TIMilUlI CC*f|ICOItMIIT com*wftL uw* smMflmjpnpi . 4WWw-i^'^K^--- t***>'-' LI A 10049 con twwn fji* u a o s l o c k s SWCtO AT SO* AJWMD CO*. COLD AnHUTtD u q md m I HOT tATUAATU UQVeOUT THf now O* TXT UQtAO fKAMS AM c o w n t u cueajjrr To l a c k o t m* snaruuMO 0 mo t snfTo UQUlOOUT cote tATUMTtO UQLAOM MTAA Of TO> AHP 0TTCm con. COWMCtQM 3 LUO^TPOUHwmi. X 4'tMOC UAOMMfTMOm o UAO MAT UCMAMU* IVtfIM m UtfJO K)| MA*y* ACTyAt LAHU HOvlMKA. IJ LEAD INDUSTRIES ASSOCIATION U***!CX AVI. tl. V tT. N.T. AM*. Ml'M AMO At t AMMO CO. M LOT, CAL