Document bBG1OnzYyOY7MN6N75jwpaEKk

COINRTREESRP-OONFDFIECNECE Et hyl Gaso l ine Corporat ion Re s e a r c h La bo r a t o r ie s 723 East Mil waukee Avenue Det r oit ,Michigan Ju n e 2 6 , 1939 Dr . Ro b e r t A . Kehoe Dea r Bob: I am s e n d in g you h e r e w it h , a co p y o f our r e p o r t LTD # 3 9-27 e n t it le d "Slu d ge Form ation in Et h yl Ga s o lin e ". Th is work was ca r r ie d ou t a t t h e s u g g e s t io n o f D r . La ch le t o ge t some id ea , o f t h e amount and n a t u r e o f t h e s lu d ge for m ed i n E t h y l Ga s o lin e . Somewhat t o our s u r p r is e th e slu d ge fo r m a tio n was d e cid e d ly sm all and most o f i t r em ained in th e g a s o lin e . In s o fa r as t h is w or k is s i g n ifi c a n t , I w ould s a y t h a t we w ould n o t e xp e ct much le a d s lu d ge i n E t h y l Ga s o lin e s t o r a g e t a n k s u n le s s t h e t a n k h a s b e e n s p ik e d . Your comments w i l l be a p p r e cia te d . K 00O --9 ' OK <O_? -liUG-S A-h kATiOi/ Hi : m CvVJCLi.-. LTD 3 3 -2 7 f . J . Dykstra 258-P-2 . Ap p r oved by 6-14 -3 9 'uivfvoiu : 0 s t u d y t h e fo r m a t io n an d n a t u r e o f s lu d ge p r od u ce d in E t h y l ga s o lin e d ur in g i t s sto r a ge in ven ted m ild s t e e l t a n k s . 0 0 Is U I b i J X Se ve n t e e n m on ths s t o r a g e o f E t h y l g a s o lin e ( c o n t a in in g 3 ,1 2 gra ? b / g a l. added a s 70-45 Et h y l flu id ) in a 55 g a llo n v e n t e d , h a l f - f i l l e d s t e e l d r u a p r od u ce d a d e co m p o s it io n o f 3 .1/ o f t h e o r i g i n a l t e t r a e t h y l le a d w it h 74/ o f t h e decom posed t e t r a e t h y l le a d s o lu b le i n t h e g a s o lin e arid t h e r e m a in in g 2 6 / p r e s e n t in t h e s lu d g e . O f / / gs-<-r 25 gm s. (d r y b a s is ) s lu d ge had for m ed , o f w h iea o n ly 3 / was le a d and t h e r em ainder was r u s t , d a li o f th e le a d in t h e e lu d e s was / ypo r ga n ic and t h e o t h e r h a l f in o r g a n ic le a d compounds a Ku at was fo u n d in a d e p r e s s io n on the- b ottom o f t h e drum b u t t h e s id e s w ere fr e e o f r u s t . On ly t r a c e s o f w a t e r had condensed in t h e r u in . Et h y l g a s o lin e was made by m ixin g 235 c o . fe d "4 4 51 ( 7 0 -4 5 ) E t h y l f l u i d w it h 50 g a llo n s o f S h it e Led Crown w in t e r gr a d e g a s o lin e in t h e b le n d in g t a n k s fo r fo r t y m in u t e s * T h is g a s o lin e v.as t h e n pumped in t o a new g a s o lin e - r in s e d 55 g a llo n m ild s t e e l d r u m . The f i l l e d drum ir ^ / u p r igh t p o s it io n and w ith / bu n gs m o d e r a te ly t ig h t was l e f t in th e s t o r a ge sh ed a t t h e Liiw a u k e o la b o r a t o r y fr u a Jan uar y 7 , 1938 u n t i l Fe b r u a r y 1 0 ,1 3 3 8 . The dross w as t h e n ce n t o u t t o t h o E ig h t -r a ilo la b o r a t o r y w hor e i t was s t o r e d o u t s id e in t h e open in a n u p r ig h t p o s it io n fr o m Fe b r u a r y 1 0 ,1 3 3 8 t o h a y 3 1 , 13 62, Ap p r o xim a te ly 22 g a l . o f g a s o lin e was removed and a sm a ll cop p er t u b e vo n t p ip e i n s t a l l e d on Fe b r u a r y 1 0 ,1 9 3 8 . Tho drum w as sh a ke n a t ir r e gu la r in t e r v a ls , u su a lly d a ily . Sem p les o f t h e g a s o lin e w er e ramoved fo r le a d a n a ly s is a t t h e end o f 1 ,4 , -7 ,1 0 and 17 m o n t h s . xho l a s t t h r e e sa m p le s w er e a ls o e x tr a cte d w ith t o d eter m in e th e emount o f le a d a lk y l h a lid e s in the ga s o lin e . Ab ou t 22 g a llo n s o f g a s o lin e was l e f t a t t h o end o f t h e e x p e r ii.ie n t . I t was removed and t h e s lu d ge and r u s t w er e r u bbed lo o s e an d r in s e d o u t w it h .g a s o lin e and 2 ;, itUjOH. A l l o f t h e g a s o lin e was f i l t e r e d and th e s lu d ge w n ich was c o lle c t e d was t h e n d r ie d in a vacuum d e s s ic a t o r , w eigh ed an d a n a ly s e d . The 2, E4 OI r in s e w as a ls o a n a ly z e d fo r le n d :o d h e w d n e a p p r o xim a t e ly he amount o ; s lu d ge w h ich nad n o t b een r em oved .'rom t h o drum b u t fr om h ie d t h e hfi^ Oh liad e x t r a c t e d t h e o r g a n ic le a d . ? / f SESULTo : Lead Co n t e n t o f Ga s o lin e - Time - Mo. T o t a l Pb Pb s o l . in 29;? M0 H 0 3 .1 2 1 3 .2 0 4 3 .2 7 7 3 .7 0 10 3 .8 4 17 4 .4 6 0 .0 4 9 0 .0 5 1 0 .0 9 4 Slu d ge An a ly s is T o t a l s lu d ge ( c a l c ' d . fr om Eii^OH r in s e ) Slu d ge removed fr om crura ( d r y b a s is ) 25 gm. 7 .6 8 1; An a lys is o f d r ie d slu d ge Total le a d So lu b le in SH^Ao s o lu t io n So lu b ls i n Z'% PJi/ .oii s o lu t io n 3 .017 Xa90/ 1.7 2?? - St e e l Drum In s p e c t io n Ther e was l i t t l e w ate r in th e r e sid u e ta k e n f ram t he drum. The r e s id u e o r s lu d ge c o n s is t e d .m o s t ly o f s c a ly p ie c e s o f r u s t , w h ich had b ee n s cr a p e d fr o m t h e b ot t om o f t h e d r u m . The s id e s o f th e drum r s r s in p e r fe c t co n d it io n , th e on ly r u s t b ein g in t h e d sr r sssio n in the bottom o f th e drum. 0 ? RESULTS: The t o t a l lo a d c o n c e n t r a t io n in t h e g a s o lin e in cr e a s e d 'fr om 3 .1 2 t o 4 ,4 3 g n . P b / g a l. b e ca u s e o f t h e e v a p o r a t io n o f t h e l i g h t e r ends fr om t h e g a s o li n e . The le a d a lk y l compounds ( b r o m id e s , c h lo r id e s , carbon ates and h yd r oxid e s), so lu b le in th e ga s o lin e but e x t r a ct io le J"yJ, .e MH4 OH, in cr e a s e d s t e a d i ly u n t i l t h e y r e a ch e d Z% o f t h e t o t a l le n d due t o th a r e a ct : a o f t e t r a e t h y l lea d w ith the h alogen c a r r ie r s in t h e E t h y l f l u i d ( e t h y le n e d ib r o.m id e and e t h y le n e d ic h lo r id e ) and t h e i r d ecom p osition p r o d u ct s . The s lu d g e , c o n s is t in g m o s t ly o f r u s t , c o n t a in e d 3,;i P b , a b o u t h a lf o f w hich was in o r ga n ic and th e e th e r h a lf o r ga n ic le a d compounds, in s o lu b le i n g a s o lin e ( ( E t JP b ^ CQ g , e t c . ) , Sin c e n e it h e r ammonium, a c e t a t e n or ammonium h yd r o xid e arm p e r fe c t s o lv e n t s fo r in o r g a n ic an d o r g a n ic le a d cexpounds, r e s p e c t iv e ly , t h e y p r o b a b ly g iv e o n ly a n a p p r o xim a t io n . I t i s in t e r e s t in g t o n o t e t h a t o f t he 3 .1 / i o f t h e o r i g i n a l t e t r a e t h y l lead , w h ich had d ecom p osed , 74;-; o f t h e p r o d u ct was s o lu b le in g a s o lin e and 26? was fou n d in t h e s lu d g e . 0022260 Br eath in g o f th e drum, due t o a lt e r n a t e h e a tin g and co o lin g , in t r o d u ce d s u ffic ie n t w ater t o r u s t th e bottom o f t h e drum m o d e r a t e ly . The h e a t in g and c o o lin g w er e a cce n t u a t e d b e ca u s e t h e drum was p a in t e d b la ck on t h e o u t s id e and exp osed t o s u n lig h t fo r p a r t o f t h e d a y . I t was w e ll v e n t ila t e d b y means o f a co p p e r t u b e . In vie w o f jjr e v io u s com p la in t s , i t is in t e r e s t in g to n ote the absen ce o f r u s t on th e s id e s o f the drum exposed to a ir aoove th e g a s o lin e . F . J . Dykstra 6 -1 4 -3 9 JG K ? 0022261 Z9ZZZ00 3 X ' " * T*7T- - - - - - - ;- - - - - - - - - - - - - - - - - - - ,*- - - - - - - - - - - - - - - - - - ;- - - - - -- -- '- - - - - --- :: ;:i: ! ; : :i ! :: i : . . ; ;..: : i : -A - A i j : ;; j j ; ; | ;;| H iE E jE E i7 H e e i H h ::Lri7 : ^ ': J . 7 :| f~ ' :. ! ; :;;: ; . h :h v : : -| ; n n : ; n j i - ; : .! '. 1 ' ' j e j ; 1a : : i - > --- : f i- im w n n in n : m.\ v ... .... n n j: e e h e i- ...... .. .\j _. . . : j :: ah ; :!:e . 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