Document XYeVmeqqj5GqJqw32mpEY6Dy

- a 4PROM * .. ^ ^lv* `:l-:. " A. CoChrane ' ' lorncB - -- .... -- ' .' ICL MUMSE*, *: *r<.- *V ->:. * 'r f"'' lornev . SUBJECT. JL-628* * i.*. f-.T-' . y . y. y~ >* 'i *- . . - .- .+ : r* <, ' . .'y *,, * -CA-- * - * f- - V v ^ i rc -- A,~.A - : A'A' A. .- ... - Botes of a Conversation with Mr. M. Clark on the Materials of Construction for Area 100 of the Monsanto Styrene Plant on 27/23 March 1969. ^ r - , 1. Puses ' "' r- - .. . ' ** ^W/.: GA-101/GA-102/GA-103 > ; .1- : , ; ;' v ;i j t- - T- -y* a. *y^ Worthite 20 (20 ffr; 25/27 Hi; 3 Mo, Cu) should he considered - 5- i'\; ^"is as an alternative cheaper material to Hastelloy B (70 Hi; 26/30 Voyy. _N-<? Af'i.'7 tyt Ik) We should ask Monsanto if they have tested Worthite 20-fir > similar. Hastelloy B can he considered as being very safe. AA. V%i ;y - 4.- ,' *> 7>r: j f V - "* >* t~A*,,- `. ,^ '*. .A. -.r; V QA-10U/GA-105/GA-107/QA-108 . > r A' Cblorimet 2 "(High Si Iron; 2^/3 Mo) Is heat material far these pumps in contact with 7 to 25Jl AlCla and hydrochloric acid. Dhrichlar may he an acceptable alternate hut only Where ferric chloride is ab sent. Duriron is no-t a--n acce*p-t-a----b---l-e-----m------a---t--e----r-i--a---l--.X. .*^; v;--. \ ,*.' -V -* , -w t * c -` *.*. r z -^ . *. r i V./ ;Tr.-.-^r- ... - - * We propose to. use Chlorlmet 2. - *?<'* jt.^ ;-. . " l \IrTV. t.v.v Tvr: . .... G--A-109/QA-U0/GA--11/GA-112/QA-113/GA-UV0A-115/GA-116 v'~rjJy < *-.v . ... . . i $- 'tf'T : These pumps whichkall in contact with water or caustic solutions should ,: he constructed ic carbon steel. Cast iron is not a suitable alternate v; - >' fr;. `-vV.s. ia the pre-sence.4 cf orioles. - -^ 2. " Alkylation Reaction Section V . . r %. 2.1r Alkylater (HJ-101) r* v . ~ ~ - -- < a 'a- ; V' .M ^gain, Hastelloy B is a very safe but expensive material.- We v. ^*:5rz` rjT^.S '%$'* S*10014 4816 Monssc-co if they have tested either 316 or 317. - However,^ i A UA/ the latter materials are not pernissable if the system is "wet" - i.e., 4 J^st'. ..WDXe tJian 1^ Ppc. We must examine the problem of how much^and for ^^**^1* ' a" Bow long water sozld exist in the system.v \ * Teflon filled asbestos gaskets should be fesed. The straigit < .jr;-* fj/y >f v . graphite filled gasket is pot good vhen contacted "with this range of ',,.i - \ -*Vr . a large proportion of the piping was changed to Hastelloy B. nils _' ; Change was not ----- ' ' * ** 1_ t- : 25 FBB & Water -V--^ -Haveg hi Is an acceptable inaterial even with FSB at yxfy. : The Haveg Corp. also aaanfteture distributors and support plates'** -V' in Haveg hi (a phenolic resin * fibreglass combination). sldered as an alternative material to Hastelloy B. Ask Monsanto If <r- | they have tested Carpenter 20.1 '3.2 Cartridge These nay be castings of lXir2cet2 or Durichlor depending on / - - ? ' *. 'Scope* sirvs teflonlined C. S.'pipe which IsO.K. and teflon covered orifice plates in 30h which Is, not at all suitable,`v Orifice "v'*r -plates should be.'in Hastelloy B. rr? ` LAM026167 >'. Jv.-<.-s'^ ____ ...... ,. ...... .. .... ........ m ... ^ f"Scope" siovs this vessel aabeing glass lined C ^'jf^viiich is,-&[ *: ' r'j\- probably best saterial on the grounds of the falser velocity of the Ihls` lstf .glass lined C 8. vessel (end there ia"no proposals to j;':yjy- * "alter this) 'but "has various internals* 'fh^ break plate and its supports = '.. ^v 'y]~: <?;f (Inserted throu^. the feednaxsle)-shouldbe of teflon llnelcarbon f.^ ' >steel con8tructioc. Teflon-itself ha poor structuial qualities.- The " . V'r >^V*^`i /vortex breskers fiwld also w constructed of teflonlined LAM026168 Attached herewith please find a copy of notes taken hy Mr. A. Cochrane on discussions with our HFC Metallurgist, Mr. M. Clark, of materials of Construction for Area 100. Vr^r--s':Cochrane' NOEMCK .. .. .</<>**:,- Tg~ March 31. i960 , \ >V, '. -I =f* Botes of a Conversation with Mr. M. Clark on the Materials of Cohstiueticn for,Area 100 of the Monsanto Styrene Plant on 27/2S March 1969. .Vorthlte 20 (20 Cr; 25/27 Mi; 3 Mo, Cu)shculd be considered' as an alternative cheaper material to Hastellc7 3 (70 Mi; 26/l----- , h/j Fe). Ve should ask Monsanto if they have tested Vorthite 20 or v - ?:'V -v-Xe-v. similar.' Hastelloy B can he ^or.%- 1 nGAAJ-IiOatk4/,GA-IO5/GA-IO7/G.....A....-..I..O....8 V Idered as being very safe. V* L 'v ' ' .'V- - i ' -- W. Chlorimet 2 (High Si Iron; 2|/3 Mo) is best material for these in contact with 7 to 25$ AlCl* and hydrochloric acid. Durichler - he an acceptable alternate hut only where ferric chloride is ah- not an acceptable material. .V-v-'/T* - _ - : -y^-.t ^ Chlorimet 2. *. ... .. , - .... -v/vr-'.-: T; -: -V .. . ' -v. . >v cys.-V-/-' ? Zi-t-SThese pumps -which-all in contact with water cr csnstic solutions should :he constructed in carbon steel. Cast iron is net a suitable alternate In +.h nma.ri'A <if oreanle*. * : Should ask Monsanto if they have, tested either JlS'or.*JL7. However the latter materials, we hot permissable if the sj-s ' -- -- *.*' more , than 10^ ppm.We mist examine the problet.'tf much and-for ^*how long'water could exist in the system.'if;'^^' LAM026170 orifice plates any . .the piping is to he in '; (Van Stone) C.. S.' -flanges - B, then we nay. B isa fairly;. -^2,2 Dealkylation Surge Drum-(a10lK^^n -: . The baffles and shell of this dnna could also he in 316 op 317 : for the same reasons expressed in Section'2.1 above./; There la oh-, viously a fair saying to be made in .this case. - pt8 \y Teflon filled/asbestos: gaskets should be ^drf/The>traigit/^v/ -V3: ' grajhite filled gasket is not good when contacted with this range of - ?/:"/-. / tics. A 1" -- ' '' ''' :.V. ..... /i: 2.4 Piping './-.Vrr-> v.; v// '^S- -v'Hi>i- - . w:.. I '-<-r i':VVSjSv: ;-;; V - . - - ; ; -v : - This was originally glass lined C. S. At last meeting with G. Small, .? large proportico of the piping was changed to SasteUoy B. This/-.' change was not challenged./1-:///; 1 - ln Scrubbers ( >A ro f IVlbixij -.*//-/ ;.v. " > -">:/i-> -X/i;/i Hsiveg 41 is sin acceptable material even with" PE at 300FX;; ;> The Haveg Cfrp. also manufacture distributors and support plates -*x /; :t;v -' `ri.-i - ; - . .. 'tr - ... - *.w*-' -v Scoper'stcvs/tefloQ.^IinediCv:Sr>pipe : * v/ - - ie"-1 `i^^i^:%^v^-eovered orifics^plates ^ 304 ,d^ch is not at aii/sui^le^.'Orifice'y;;;^^^ '.-^'//plates /should be/in LAM026171  Scope"'aiovs vthls;vessel `a** ^ *s~ <- . - jjrobaWy. test afcierial do. the grounds of .the higher velocitjr of theV'^-ii^:-v. '^feed.'J-v3SnpingttK:.t mightywear down pttfclr p2astic;;c^tliigi5i^|^^v^:^^?,^ uterlal for &&&vC\'. ---------------------------------------------------- ---------.-- ----------oniy lo very^^S^:-. rv^-v- ..-snail concentrations . It seems that ve should use a tetter material . ; ' -''iJT:*S.t. ____:.M _ -. li -.i V -r*--ir.I2`.:,*-V i - covers this xaa^s) should te used as a lining on carton steel* . ^ LAM026172 LAM026165