Document NENVRKVMqKopR5pnby2m02Jmy

*crr*c*cc TO / 33 D. J. MPt-hgrd - WC3C August 29, 1979 Dioxin Formation D. > C ^ A u rstro n g D .`"KT Lvnch D. B. Edwards - B3SD P. T. Kirk F. B. Matthews _ 7w ^ ; A I//**' d \ y J ro A The process change to delete caustic from the chlorophenol' still charge has dramatically improved the formation of dioxins. Still we find "we think" something which analytically could be the 2,3,7, 8 TCDD in the still residue. Considering . the known routes of'dioxin formation (i.e. condensation or chlorination of lower dioxins) it seems to say we are forming the 2,3/7,8 by the latter route. _______________ In all of our analyses we do not quantify anywhere the unchlorinated dioxin. Could this material be in the phenol recycle' strean w h ich goes b a c k to the c h lorinatorT^&xrice \Te presently have"more' demand-torlTthe^fractions than we have material available, it would be a simple solution to eliminate recycle and sell the excess fractions. Can we test this theory? ____ _____ D. J. M e t h e r d / ds A Confidential-Subject to .j -- /i / r Ay-L } [1f f*-. ft* l - ' A ;V > o i. f rt y1 .j1*.v NT is' V ; .;T ^.a j-------- Mi. ' ('n i 1