Document nme5ebRQ89yGJEDR0bVLV3v98

Or. E. rturtoer Fleadngtan E. J. Hoariban Burlington Initiation of Production VP-631 Batch** April 7, 1969 P. P. Alban-- *. L Boson M* V* Pile l An we discussed --Hr today, VP-691 batchaa run at Burl ington at tlnaa do not lnltlata and at other tines lnltlata only after a prolonged Induction period. Our experience with the loot thro* batch** was aa follouai 1. flfaaafd v/m/Mb - aft*# 13 haure at raaotlon teapersture than* uaa no prsaearo drop ao w Increased raaotlon t*^>oratur* A*p to 12**P for B-l/t hours* raturnad aat point to UB*F and added 2-1/% Iba. or initiator. After %-l/2 boura there aat still n jraaaura drop ao tha batch was 2* vrrMi - Ban thraa haura at raaotlon taqperatva^ X~J*V) with ao proaaura drop than aat tesgeratura up is^r1 to 128"?; tat hour* lotor ao pat tha praaauro drop and startod tha continuous aonoaar add. Tbit batch yleldod relatively unstable latax. 3- Vfe/69 - Pcranlafad with 17*5 lha catalyst and 121"? varans standard 15 lbs. catalyst and lift**. After 9 hours at teapernture aa pat tha pressure drop to 85 psigj tha batch uaa than recovered alnoa aa did not aaot latax for drying. Vanplaa af MfC and m^ow (used to convert tha Bf do to tha --nnliia spit for this last batch) bans been forwarded to you with a aaapla trananlttal. Tha XW 80 uaad in thi* last batch was aaot to you on March 2%, 1369 Identified aa Cron #%. with theea InpWjtlanra mold you please run bottle polynorixs tlnaa In an afflwtto detemlna if one of our 10s aaterlals was raoponalllp for tba excessively long Indention period. If jon let tha M|Bi atie settle, a ruat lit* oollnont foieej could this bn contributing to our prohlaav Fleaee afcftartt a portion of thin aaapla to Application and BtalttlrliM for Iron detareln- atlon, Also* I aat holding con gallon oftho DwM. eater used in thin last batoh ln the sweat jou bmp cay sesandthought* about Including It InjenrbetU* study* . UB/rJ1 E. 2. Baurlhan COLORITE 015379