Document zd2k4VkNvwX0Dj6k2V5ELvV5B

CC Mr, A. e * M i ttnacht i/ 3r. Robert Kehoe College of Medicine U ni versi ty of Ci nci nnati Ci nci nnati , Ohio September 17, 1930 Mr, H arry Mack Ethyl Gasol i na Corporation Dayton I ndustri es Build tog liti asi & I ndi os Str eets Dayton, Ohio Dear Harry! I n connecti ca to the us of tank cars f o r the transportati on of ETHYL Fluid* the problem, o f keeping these teak s i a a cl ean condi ti on, fro zm sludge* seal and sediment, I s being caref ul l y studi ed* Equipment has been de- si gaed and i s being I nstal l ed her at the pl ant f or proper i nspecti on and drai n* age of any resi dual m ateri al fro returned car s, and means are bei ng provided f or sui tabl e washing equipment f or cl eani ng the i n ter i o r o f the tank s, i n the event of any accteul ati oae of sludge or seal s. ' However, the item, of tank car cl eani ng w i l l be r el ati v el y erpen- Siva on account of the m ateri al s and l abor necessary to'perf orm t h i s work. I t i s f e l t that an endeavor should be mad at the r ef i n er i es to curb the tendency of sl udge acouiffiilation and t o minimis the cost and hasarS of f requent complete cl eani ng at the p l an t , ; I f , af ter the discharge of ESSISIFl ui d fresa the tank oar to the storage sod tank at the r ef i n er i es, the val ve l eadi ng to the storage task i s cl osed and the car and l i n e i s completely swept w i th gasol i ne, i t i s f el t th at the desi red r esu l ts w i l l be attai ned, and f requent cl eani ng at the pl eat sub st an t i al l y reduced. There are probabl y s&ny ways o f accomplishing the gasol i ne cl eani ng process which may be worked out to. the sati sf acti o n of the i ndi vi dual r ef i nery managements, One method th at suggested i t se l f i s to di scharge gasol i ne fro the storage tank to the tank coi", rad thence i n turn'f ro the teak oca? di r ec t l y through the eductor af t er cl osi ng the velvet to the ETHYL f l u i d star ago tank end then returni ng the sl i g h tl y colored gasol i ne by moans of a pump agai n to storage, m any event* car should be exerci sed to cep the car as cl ean of resi dual gasol i ne m possi bl e rad a l l v al v es on tank era cl osed, and dome crra locked i n pl acej al so, proper pl acards should be appl i ed to tank oar f o r i t s return xaovaaent. 0000769 As a double check, equipment at the pl ant w i l l b used to i nsure complete w ithdraw al of the l ast tr aces of resi dual l i qui d p r i o r to rel oadi ng w ith ETHYL f l ui d* We would greatl y appreci ate i t i f you would develop t h i s si tu ati o n and forward your comments as to the recepti on of the suggesti on by the r ef i n er i es, together w i th the adopted procedure, at your convenience. \ With best w i shes, I remain N 5575