Document R2JyGg9Bmr2azyOxzMEQ68agz

m. 9* s. <mmi m fm the. use of mT 4**awrtlilMtm npoeraifl Pftnovfc (HI stadlis of aim* tag nMOAUil jtiSplW* ^BrV* 'VVSjpja '^W'*e:Ww OP 1950, <%* ssAjCKg hyp ))^} given to studies oaa _ St9^i&SB39ft <9^$ 4^3N0^9E^Q^QN^ 3L4^9N9 ymgftif* Successful' grinds giving tpatlity to those obtained tint high purity aeetonohave been % ' 'in an>r<'t /miiiwiiBi m fctt gQC f$-y ynlinwi) of fafeOI*. evidence that Hi* presence of aone to might to beneficial sad that & dispersing agent such as fribsii **1G0 mo beneficial in the presence of voter| but attempts to check these results have not boon convincing. Attempts to use Aeotono of less than SOd purity have shown inferior results with lower concentrations and no griad- at all was obtained la one water grind with boro*. On several occasions a peculiar separation of color sad boras has bean obtained hawing. ny of the charaeterlsties of a two phase liquid separation, There has also been,In meet oases, a sub stantial aoenmnlation of oolor In a paelf condition on the bottom and aides of the weasel ufcen dilute acetone is used* these conditions moat be controlled for successful large scale operation* Two ssoai-wrorka charges were made with $ acetone. Both showed the separatism haraotsristica mad have failed to develop the desired strength in a 4 hoar cycle. attention has beam given to the reoc by recryatalliaatioa* it has bam very easy to reooi starting y^t****! yff etwyty by tug feb jamsMMRr XtgpMr from the filtpn- tica.She eoamereial feasibility of an operation may be questionable. <& rnth esgisaoi's resulted in the suggestion that the moat likely process may be to grind in acetone of. itiffiA water tmay be loe waterJI- as enA yad*img fluid 1% a oentrlfugal olassifie&ticui set up* The process ecntemplates re-use of ft Is to fydft j*ype*t advice on the d of" suitable e^jamnt in the near future and te develop appropriate data as seem as possible* up fpiA'mAn fyf gag Ufo a*yi Violet 4uy .are report is written. way ae this t * iBBMdSNSB'* ECAL BIVOTCif N41989