Document G5182ZeZjX4Kx7o4Q7ZdNLYqm

LIA09799 ,'' - : 'su i.iV, t.v. vytm& *jn> wfl&tei.v crrsar-;* ',, < .r... /.. *n .- ' ...... f. f - *V if.'; v. - : r'v - ' v; - ' i ' 4 1 1 /Tv V Jl ffee lead liasil a' ' tsJ: It bead eA-vtif's* Zaat it tfea SWS2? C'l v, r' r, UxUi-srSf, r,\-it it.? freed er?ioa after *eisi. Ss.*-..* ..." dtsifelinj V-,.; .r i*? of ctrcgks (tear & la, spare), ti .-. s of the 1**5 fs 1/u In. to J/3 ja, cad fries cititictl to tcliurita load* iris fist bettscd t*sk tea --- ln&'.si 9-^iy;g eac&e&terGd in iKsispfarlcdl and "V* bottca installsticns, Ha tlas of has not beer. csificieatly lor.;; to Jadra fully Its Egrjie bat to data pcrior&anca has baas highly satisfactory. la addition, 3/16 in. loed lining is tesag fren a sin.la horl costal steal strap nsar the top of th* bead feesing tower. This lead lining has served with co signs of failure sirs* Kovanber, tetel, at room tnnpcreturo and la tha proaeeee of dilate acid alua eelutioo as sheen in Drsaing *io. 3. Stasa ejected throach a brcnce adwetcr Jet fer heating tha *duties has allad rated the use of lead staaa coils, agitates tha solution and does away with tha lead paddle wheal forncrly used for agitation* Flexible hose connections Into diverston boxes havs allsi rated ths ust of nary large lead lined valves. Application of other ssterisl* la tha alas handling is also discussed. a. mzxv~7&r Kiirosgf A total of 12$ tons of lead was Installed to handle the corrosive sold alas solution in the bead catalyst plant of the Socory Tseng* Oil Co., Inc;, at Paalsboro, K.J. IVsrly two till Ion beads or 50 tons of finished cstalyst per day era proa-ised in the lead lined feraing toeers froa gal foraing solu tions ceosisling of soils silicate and acid-alts* (eliEiinurs culfate). The ejrtbelie bead catalyst Is used In the Themcfor estslytle cracking proems wr.i.th has recently ecr.e into oxtcnslvs use ia the production of high octane gs-soHnn. T> nls used la produced in a lead linsd boilirg; tank froa sluttinus tri ydrslc reartod with sulfurio said. Alurdrua eulfete (alua) la prartuetd fr -~ ths brelo rs hater!els rethw than fro* coutarclal alvs* bocauss of high purity re<*airoasnts. / *> ^... .> N3082 i 1 : % i- .- H LIA09800 m 'ZfV&HiC ; l.i' of c''.t-nV'st* er eX'.-'X ro ftr. 1'c- aS it . >;' .: ** i; *' :.: t. v<vy 1 : itc;* tT.'iv. . 3 tttoi .. *; tC-:\ . t - i-.di {or -x.', v " V.ir;.i K.V.s'. : . J " .< " V--' i :V." 5 -v-T'-'-' 'i" ' ''' .< .? i r- u : r ; 1. ,..v\ ?-''* "vr-* p" t'-'s i '..''iKiCvl- fi !,;- 'i l,-- ;Lf--. ' i/r-i. re ess wtvh s&ss tt-:r.v vseS i~ si i* . 1 . ; : ... :-s;.-s i. . '-is* ts'-s esScttcra in a S:g 7c-v 1 re:* - - I- bsr.'llfr? &P9 Alslott tfercd IdfcJ f~~- w- ?o. ir for task *Ust pt*; . of v-j Ha;;:; sr-ww?, ebfcst* cleric** used throughout ti plssft fcsc&ti'tsi * ! 4 ;n { i b z-3. DesAacraliesd water, freed of catalyst pclscr-a such as Iren, copper, efersaiuci, end sodiua try e* cT the citioa-enloc exchts.ja process, is first i* trc.2:;;>i to t-be aI-:: r*istor, Coaecntrstod sulfuric teid is sdd&d until tbs ci'.-ion is 5CZ eiid ut-.iob fills tbs tsai to s dspth of 18 in. AluKir.ua trlbjrdrttc is *ddd stich ritrte tbs txethemic rssetloa end soOitionsl slted.r.a i to Bintin tenpsraturs *t 2^0-260 F. tbs reaction is centinusd fer 1-1/2 to 2 hr, at this temperature aru is continuo'usly agitated aith stssa 4!tJ kept abors solidifj eatioa tenperaturo of 210 F. Tbsn tb batch is diluted to 23f alumnus sulfris ai kept at 133-110 F. for four hours. Further dilutico Is dona in this UrJc ur.Ul it 1* 9Of Pall of 23J al aolutlon which renains liquid at rooo teaperaturs. For usa this is further diluted to 13> in a solu tion preparation tank. Several cycle* art run daily whan the plant is in full operation, s. eqctnew tgscaiPTioa ajp KimrotJOCE The reaction tank Is 17 ft. 7 in. inside dlasater end 7 ft. 3 In. deep. In Koveaber, l/'lt, a l/l>dn. che,si cal lead lining was first installed with ver tical streps every 1 ft. This proved unsatisfactory after a bars five wonths and was ripped out at t)t tins, .tie oosl sovera stage of the reaction occurs when the tank is filled to s depth of 18 in. and the lead ponetrstlon by the slua aolutlon after five Months was so extensive et to require replaeeaent of the steel bottoa and tide* to a depth of 18 in. The r.w tank lining was installed in Uarch, 19ii5, and has served to date with only slight buckling of the l*cd and an occasional saall lak. The bottcu and sides are r.i^r 3/8-ln. telluriua lead and the slightly corves t*.p lc 3A6-in. chetdcal laV Additional straps war# lnstallad so th.st tho t>w lining i.-i etrnppod awry ZU in. oa the si walls. Tit* bet ton is secured by parallel etrepi, Id-20 in. apart. Tbs low liquid 1`rval et bright of reaction followed by dilution and lower taaperalures place little strain on the upper tank wild ares. The origirrl er.ii*tor was t lead eov-rel paddle Vlad* typs bdlthe lead e,iwrifti f`- ' the t.5*l tMslcw tj the 0Sirolve acid alua solution. The stool belts holding tt>s peMlts eti r.*d sway ani tbs paddles fell off. This was replace! by the eductor ly.een describ'd below. i/ :: ; ? -i ( LIAO 9801 ' Civ-uSca! fo&Utlt. Ut 6 Jo f tej&sfcis* >4^ l>Vv Vh'..% fir?*- ;i;-?2'4 ?Lt>; 'tti,- l:'.rir.g i"r base* t-ncstS?* headias: regs??-**?* epstid tf it*.! ssas tried* *& actually ftUoC et!igV. .' - I--'; ' rl Is- Cf i m * - 4*f T jgisd fcC M fait.-. c. i.?.* ; s7 v;i fctls <it tfe totter >iy2 ' is. \ 'l'-'. to tctefe ?' r' ' t-if.rv? ;..tsi* ts- itSzdSw?- & *&& r ; f;- '": }: *.'-*-1 JK r c: i**" fcsftS ft3srr"is esj^cftssi t*r e' . '' ' - fcy* -tyr.-v '*;* c ;;' > 'V ... /,-* Hrr-d,E Es 3 tSa etvirr "X .. .- .- . ........... ; .'. 1-- . . 9tSSZ*JM Vv v\`.z\:. e*c< .i: - * `icvr* A clssis test**- Jsist ' fcjfei &2 eil, u:4.. . *.. t- .. i to ;>& wii&uiasd m elwsu. A & eelutArt cf -a" '' :~"3 ~:r.ic, 55 ealfwie sold, end 90* dsaimrsl- lead water te b?t. ..j, f.v. 'ore '.through lead pipes to Oar eefibroAXar, tfc* kkorrosiv es-ii.rs elii' . .-3 so.-'..,, ion is ezfcly hssdlsd in steel pip*, iirta tiiting ti*-i c: ..3 both solutions to the erst silicon bfonie distrzfcvtiiis bead, thresh a lucivc nottle, ewer a plaster of peris fluted distribatiiis esse into ties lead lined tower there beads are ferasd *s the droplets fell through a layer of oil. Sluice ws,ter at the betten of the tower carries the beads through lead pipo to a weir box, then through rubber hose to s waxed steel lluae and oc to vet bead processing. .._ d. tCt CT U.KTCVJUS CCUPZTTHtt TO LEAD Vith the exception of the perforated lead stsndplpe, all parts of the eductor systea in the alts reactor are cade of bronse (63* copper, 10* tin, Z% lead), dronze pipe and fittings of this composition giwe good sendee but when first installed braas was used with resulting serero corrosion by d* zincid- cation, stese for heating is jetted through the eductor nozzle elidnating the use of leed ateaa colls for beating. Cast dicing heads (See Drawing Po. 2) of silicon bronze are used In dxing the add slua with the sodlta sllicste but proved to be very porous and the solu tion aeeped through. The nixlr.g heads were continued in uso with disdnlsbed seepage after ispretnatiri the castings with a phenolie resin. Connections to the nixing bead are of Sarcn tubir*. (a vinyl plastic) which has givan good ser vice and eliminated a leakage problca around threaded bronze joints. A nozzle of Luclte provides an esdt fron the rl.i, . head and the nlxture Is discharged over the apex of a fluted cone of plaster of parts. A this antlwetting wax coating originally applied to .the cone surface to prevent g*l adhereoos wore off in spot* necessitating 'tsily redlpyifsg. An Aaerieoat resin paint was applied and increased cone Ilf* nearly thirty tines. iuclte hi* alno been found auitable for use in replacing parts in bronze flow control valwss in atld eluo lines, VorvUte pzsps in these lines performed well but bronze vc.lve part* w*u* erygie^r corroieJ in leas than a year, Lucite parts aachi.'iei in the I'efln-'r/ *v-ps replaced U.ese *rvl are now serving well as plu^s, seats, and rods, tr-.nze has served adequately in acid altn lines not requiring does tolerances, but longer service la expected froa the Lucite replacement. -e ---- "owr! 1 IIA09802 m tt-vs s;,i's?.s? faJ-ttv nri f'\' ./; cJ '-.I:- x- - t;."xy' '-.oreyiij.*, Aid t!.Vw ?:,.. .- I-- tiif i'-.XiX. tv VX' ,..., . ; i . ' Tfcsr usr 16 3t ftMt-tss&ss irjtVs s? r&iafiWifs! pajsad eoser-ate, ';. rated with cr-,s as thi tntl6j tr&Stss. t; ; '>.>TOSfc e.'AA I'-tviage.-, lr br^jiiaui^ r*:- ;; ' ,sc*yc t&s f;*\h spots 3S**i fit w'. i'o j*> wsv i'A ,: xisno C, is iS'-yli ty 'r-. ,-j ' ejs'^s^ el -w Ft (eeltin^ point It If-.;-*.??-3 F.J Sw.ssl costs in . i , t - teiAd e? e sa&t. afesBi 2/16 in. this*. .to* gnlles of r?ss, U1 oarer etotk IK - t *q. ft. Also stood In the wot processing cvctea ere stalnlers iImI (13--5) &eseh '-ire screen etrainers ever tbs effluent liquor outlets. These kre es tt-x bettea of the lead pipe and prevent the bead* frtn fleeing o'f through the liy. ::. outlets. After wet processing the beads are sluiced through a waxed steal fleas to the dryers. In large areas of the fluae wax Is worn off but the steel bales tea not corroded because the pH of the wash liquor is around S or 9 and a tenacious n white eurface coating forss on the steel. 4 COBCUUSIOKS A. ALSU KUCTTCM TAXES. 1. Cheelcal lead. 1/U In., strapped every 1*9 in. failed badly In less than five souths. s 2t lallurlia lead, 1/3 la. strapped avary 2L in. has given good service since Uarch l?u5 (21 wonths). length of sendee is as yet too short to Judge the perforeance of this lining. I 3. /tcgularly spaced squares of honobeneously bonded lead lining failed over night, proving Inadequate to support the lead lining under conditions of fluctuat ing taaperstures, , b.Flat boten <Jdgn has eliainated sagging and leakage troubles encoun tered in heal spherical and ** bet too tank*. 7M* la wlmre til leakage occurred In the al\n reactor of the Baltinore waterworks (see Cher.1 col Bulletin Ko. 1). 5. The plant engineer* would like to knew of tny onhods other than weep hole* by which leaks in lead lined steel tanks can be rcuuily located, 6. Bras# for interior fitting* in th* slua reactor failed because of d itre ification, Eductor part* of bronse have served in the sli reactor with no trouble. B. mn rr'inxg toovs. 1. The head foreing tewar, Un*4 with 3/16-in. chesdcal lead is unaffected by enrr-eion fr-.v? the dilute acid and a lectin at sulfate solutions. c. onodi mr.-yiAU. 1. .'Aran connect lore, worthlta f*r>{u, atainloM *t*l and Anertucat r*;tn paint* re *ulrt ail prw*:. aUitn'.vi/ for {articular ph*tv* of ;id alua ng-vAlng. LIA09803 `-..--llfSTfitn) Treatedaster to metprocessing Wattr treating plant per mn ttOuGSOgel. si&d tank fifeimutefod Tb metprocessing DduteftOt tahm fobtbn Saren hdtng fhr buffi . . m K>% aim mdiiiicatjsekAian *'-*'* Sts drawing NoJ ' SHkate of 2?'fso&t>on <1000 gal. ___ x_ j Skdpipe Room tens LLl^: Rubberhoes STORAGE TANKS Sit&jric edt *iiSC&a ISttvscieota Silicate ofsoda 400,000gat. lead Hmd - tie irtsudkd AJuninue trdfidralt Steel tank Me insulated stomge in bags Treated mater 20\akm solution roi 41000gal lead lined tile insulated ICCaavt&crftvm*HtiA4irtcacd (SkrapeJ-iOXOfonseijket yrhbrrrrcatrfia*dxdL Sec droningNat leadpipe s ALUM REACTOR 20% alum Skdpipe for transfer of concentratedsulfuric add CHILLING UNITS turn tome processing terlhite --; /.\ pump r prCirculating L_____foilStorage Leadpipe ,. SXAkmunumsutkdo -- SXSUAncadd flojtp Room temperature CHEMICAL BULLETIN MOS ACID ALUM REACTION TANKS LEAD INDUSTRIES ASSOCIATION OO ITASAtTO* AW, NO* wendin' Drwunq *0.1 26 B4$ fry: RM.CTwt>i.Jr. LIA09804 . n'nn^.i^i j' LIA09805 if