Document p2p75XqKQ0pObeNEmyGmK3kjk

' Mbnsanl tM iMM[ 1 0rc tvu ccr (<C*t*K* TO ( <y Q W -"_( C_ bcof*u3 C^Ar*4 > f>T& *t~ D H-<-A'Tce>* C^frU Z.'& f& V-F D toW .*^ 'x-z-GO C . O 1 V S c .o E>5 ? ^ i S e ^C-t<z_ ft CO ITI+ 5 M -rdf*& *f Per our conversation coday, attached is information relative to our position on pentachlorophenol and our current research plans. As I indicated to you, ve are still very much in the penta business and are trying to stay in it because of the dependency of Santophen^ 1 on the utilization of chlorophenol fractions bv the penta process. What ve have said is that if EPA required us to 1still penta to reduce the dioxin contents ye wotild likely discontinue production of penta. Our preliminary estimate of the ca'pital required for distillation is $8M and the additional cost 20-25C per pound. We don't think the wood treating business could support these in creased costs. On the basis of existing information, we think, that there is no demonstrated, need to control the dioxin content of penta which will be used in professional wood treating establishments^ We do feel there is a further need to characterize the impurities in penta, and determine if they represent any risk to the environment or plant worker. Work is under way in this area. Finally, as Insurance to our Santophen 1 business, ve are examining alternative process routes to reduction of chlorophenol "fractions" to the lowest practical level. An oxychlorinatlon process based on cupric chloride can theoretically provide an 80-85% reduction in "fractions" production. We are currently examining the parameters of this process and will write a R & D Process Outline which could be used for an economic evaluation. At this stage our probability of success is 50%. Please call if I can be of further assistance. LGS/dc Attachments 5-7 L. G. Scharpf, Jr. co X PROTECTIVE ORDER- SUBJECT' TO - C0 3 3 H 1 . CM C10037 i n - i r fi s v i * 1 Monsanto OAT* tu ijc c r c C" *<* TO L. G. Scharpf, Jr. - NIA February 18, 1976 PENTACHLOROPHENOL M. C. Throdahl - DID cc W. B. Bennet J. S. Metcalf D. P. Roman P. A. Tierney - NIA - B2NC - NIA - nia D`V Per our conversation today, attached Is Information relative to our position on pentachlorophenol and our current research plana. As I Indicated to you, we are still very much In the penta business and are trying to stay In it because of the dependency of Santoohen 1 on the utilization of chloronhenol fractions by the penta process. Whet we have said la that If EPA required us to distill penta to reduce the dioxin contents we wold likely discontinue production of penta. Our preliminary estimate of the ca'pltal required for distillation is $8M and the additional cost 20-25c per pound. We don't think the wood treating business could support these in creased costs. On the basis of existing information, we think that there is no demonstrated^ need to control the dioxin content of penta which will be used in professional wood treating establishments^ We do feel there is a further need t o ^ characterize the impurities in penta, and determine if they represent any risk to the environment or plant worker. Work is under way in this area. Finally, as insurance to our Santophen 1 business, we are examining alternative process routes to reduction of chlorophenol "fractions" to the lowest practical level. An oxychlorinatlon process based on cupric chloride can theoretically provide an 80-85% reduction in "fractions" production. We are currently examining the parameters of this process and will write a R & D Process Outline which could be used for an economic evaluation. At this stage our probability of success is 50%. Please call if I can be of further assistance. LGS/dc Attachments L. G. Scharpf, Jr. C SS ` T W c i 1 V E O R D GO 33 1-? 1. c m C10037