Document ooNwEdQQ4ddGxveN5Mp4bvrg

Br* Oraha-ts Kdgsr Page 2 Sg0-g4 On the subject of the material which clu-ters the standpip and the stirrer assembly, this acts' iis. srsry respect oratty much like straight triethyl lead bromide* 'fo" destroy. that efficient ly with bleaching ponsder 'would men probably filling up the tank to the top. This does not seem.very practical fcad my suggestion would be to build a small tank wide enough to taka the stirrer os.senbly end as.,deep^s tho we i gut' tank. This could then be filled u p !:h 8 suitable reagent for either or both dissolution end the de struction of fee organic lead compound* o. are searching.'.for such- reagents at present, using- a new sample of this material veileh we have just received* 'CsAfiM cc* Dr*.>f*F*3&eale fr - f. ''!* 'falter Sr* T. "* .onon Very truly youra* George Cwlinp.aert August 2d* 1334 Rr frahea Mdgar, Doer Dr* Rdger* Hi following is a Progress Report on the problem of cleaning the sludge frosa Ethyl fluid '''eight Tanks* i- The mud vriieU settles dom wwn the sludge la el losed~i^-drains-is roughly 80:'. by .volume of the original sludge# *bda rind' itself is 70S solidB diich analyses as follows* RsgOg sari ,1> 2?*o Rllioa, ete. 1*3 the balance is, of eoarss., -idietever is oonbined with tho load, as "-ell ss sec _ organic matter# .lenses .attracts 42*6$ by -weight of the a bow rate.'-iol, and this contains' 13*8$ hh out of \the original 27*$* As you Jchow trietbyi lead "pranido when subjected to stoaa distillation decosgspses apparently to the formula* SPbBtgBr * Pbfci^. j* Tz0?z * 1%, Tale/means that stesta distillation yields an Siaount of lead in tho distillate s&ich Is ;h.slf of the initial load# On tie basis the 13*8$. of-lead extracted wfth. benzene would be expected to- giro 9*4$ of steam distilled load# .Actual test geve ' recovery of 12 grams* a reasonable eheelj'Qon-sidering'.li^ little rm Snow regardinf the identity of the conpounds-present# Sswr! batches of the "and* were then treated for various lengths of time with bleaching powder with or ?dthoat. sold# alkali or heat. The sold biasoh destroyed only <>0$ of the organic lead (an measured by steam distillation) while oil tho other tests gate wry good results? The beat result to date -see-obtained with bleach without acid or alkali* after standing for 20 hours, "he 'distillable l<?ad was then down to 0*2$, These results are now being check by steam distillation and also by extraction with benzene* to are also attempting to improw further upon those *'igures by iacressing the time of contact* the mount of bleaching powder, end by beet* KE 0015515