Document qaxL7jDkgwQMZGjLaod08GqME

KJ J A* --1 VCH Quality mono#* cnowa t JAB 14 Q90 I fio *cm<i n* am % *tr- *c> ---------HBMttH UWMY Calrarl City, December IS, 1979 -Un. A, l- I attended thii neetin* aa a repn Group. Thoae In attendance worn: ' ol the Vinyl Chlori.tr tlonower It. Atkina I.A. Baroea C.R. Black J.B. Byrum I.S. Dunn Coons Guoso Harper Collar Konot K.S. Kinnmuon H.H. Narty R.C. rtolloy P.B. Pearce V.A. Reed N V Rovaeloan C.D Schssf D.B. Schrock P.N. Sol loan J.H. Whitney 0.0. Ickaaf Introduced the Bootlap with a discussion of the problem of coarse charges. Me reviewed the problem and the work dene on coarse cbsrgea, neking basically the aarne presentation as he had node at Avon Lake on December 7, Be than dlacuaaed the uniformity of nanaanr quality, centering VO with our competitors. Onr specifications are broader than these of ear ceapetltors bat in general the actual levels era farther below the asaInna specs so that the quality in general la about equivalent. Bouevar thare bee been a genera! increase in the amount of off span naaamar produced at Calvert City going from less then 11 in early 1*7* to as high as -10% recently. It is lapertant that the cense of this problem bn remedied. fl.R. Blech then reviewed the vinyl monomer manufacturing process. He first gave a general description of the process than detailed the history of con* traction of the various sections of the Calvert City plant. He then described in greater detail the EDC cracking process and discussed the butadiene problem with the steps that have bona taken to remedy it. B.B. Atklas reviewed Calvert City's qnellty ceatrol procedures. These ere used to determine idMthnr e let ef aomomnr is tn bn shipped or returned to off span notarial far revert. The cent of reverting noocner emanate to appro*imatnly fcC/lb. in amt of packet cants, amt Including the lose of capacity maul ring foam tonne*.. tei mb cur handling procedure. The anygee in the >.tamk car is neeaacad for both safety sad specif 1* 'level In holow 3,Dot ppm, the cor la leaded from the tog. 'IHH^UMNpiech loading had baam he lew MO ppm, the car is sealed jo between MO end 3,000 it is reteatad. If it is & .. __ _________ kf'ft Igvwnted nntil the esygan level la below that. If the a im 'gfta'cnr bad been ever 3,000 ppm before loading, tbs car is loaded the bottom. It la them vented and weathered until the enygem is below 20764001 A series of specific problems ia vinyl naaonar qaality ware them dlacuaaed. A major problem has been cantaniaatisn with polymer, iron snides and chlorides, and cnnotic. Regular tank car cleaning hns bnen saspended since 1975 at a result of 08M regulations. This has resulted la nore contamination problem#. grgMWgO f/*r i'two .to 42841 **- BFG06291 In order lo Mtdl for till* tow plants luv Installed Nllioyct in tlw ph#rs rharaing lt*ww 1 observe aoromer taring loaded froa lank faro Into *ph*ret tixl watch for indications of rontsninatIan. Pedricktown h a continuous wwWf filtration system whare aonowr fran the botioa of a aphers la withdrawn, filtered eed riiaracf to th sphere. TMa raawlta in cMtinaMi turnover of the sphere sad rewoval of solid contataioaata. Oaygaa cootaniastion it anotbar aarioua problaw at it nay lead to forMtlo* of pcroaida and thut polywar. Om wajor potaibla cause it lnrowplete rioting of tho valves of a car that hot Juat bfl captied to that air may antar tba car an itt ratura trip to Calvart City. To salve thia problew all polywer plant* auat ba aura that valvaa art t.ghtly elated before cart are returned to Calvart. Calvert can alto poaaibly redact oxygen by loading all cara frow the hotlow to that there it lata agitation aod laaa opportunity for the oxygen to diaaolve la the aoooawr. Contawiaation with eauttic, which leadt to a high pN in the pelywerliation reactor, canid be ellwlnated by ellwiaatlng the cauatlc scrubber and allowing a higher iweiiwt of BC1 la tho product wowowtr. Recently contawlnation with onoviaylacetylewe has been oboe read. Thia la a raault of lower reflux ration In the vinyl enluaaa alace we have been chlorinating ant butadiene. It aay ba neceaeery to lacraaao than# raflax ratiaa to solve thia problew. Another caatanlaaat which sonatinas occurs la acatylaaa. Thia la probably a result of caustic dehydrechlarlaetloe of tha vinyl chloride in tho cauatlc acrubbers. Thia la another reason for elimination af tho caustic scrubbers. After thia diacuaaian a nuwber of paaalhln actioaa ware listed as follows: 1. Closing tank car valvea tightly at plants to hoop out oxygen. 1. Batten loading of taah corn to heap oxygen levels lexer. 3. Baa af filtration to rawat aalid camtanlaaata. A. Inatallotion af bullseyae An all tranfar linaa fraw tank cara ta storage apkaraa. *. One S*a t aadeeeralatlea af turbidity with polywar tfc tha nonanes^-,' 7. Snapllng ai cate wt high anygoa levala for pelynar. . Coaporiag oar ear'landing pruendarea with these af Dew Canada, who supplies stager* Mia. 9. Corxalghdhg higA laibwla of nouovioyUcatylana with polywer quality. ''nan'-he iaouo a detailed joint report on thia neatlag. A TAR/lk cc: PCS Oroup .R. Black F.J. Beast O.B. Behoof t.A. Kanet 42841 (N Ov <N VO O O Uh PQ