Re: incineration of CU2+ salt of chlorpphenols gives less PCDD/F?

[james denning <x288files@earthlink.net>]

Tony Tweedale wrote:
> 
> jansson & sundstrom 'Formation of PCDD During Combustion of Chlorphenol
> Formulations' _Sci Tot Env_  1-:209-17 ('79)  (authors are/were with
> swedish EPA)
> 
> have results giving the technical grade copper salt of 2,3,4,6-TeCP
> 10-10,000 times less 2-8 CDD than the sodium salt of the same CP, across
> 500 - 850 Deg. C combustion T's.
> 
> can anyone offer a reason for such a result, given that Cu is supposed to
> be the best catlyst for PCDD formation?  the article does not describe the
> sampling point (other than it being flue gas) on their pilot scale plant.
> they cite ahling et al _chemosphere_ 6  ('77) p/437 & p. 461 for more
> details.
> 
> --
> 
> fyi, table 1 shows the 4-8 CDD/F contents (this was before people were
> grouping homolgues by 2,3,7,8 substitution or not) of the 4 CP formulations
> tested, before combustion:
> 
> 2,4,6-TCP, K+:                  11 ppm dioxins           158   ppm furans
> 2,3,4,6-TeCP, Na+:             6.4 ppm                      12.5 ppm
> 2,3,4,6-TeCP, Cu++:           2.4 ppm                      14    ppm
> PCP:                                   12.3 ppm                        9.6 ppm
> 
> --
> 
> on a lighter note, _Not Man Apart_ 13:3:9-10 (4/83), 'the Tragedy at Times
> Beach', which gives some details on the path of NEPACCo's hexachlorophenate
> manfacturing wastes sold to Russell Bliss, notes that 'Bob's Home Service'
> (!) was Missouri's only licesnsed haz waste facility.
> 
> Tony Tweedale (Causality is a concept not subject to empirical
> demonstration.   -David Hume)
 john [tickets] divilleas[sp?] said at a baird and mcguire task force
meeting on dioxin that you get more dioxin  off the vegitables you eat
then the smokestack. So I asked him if shipment of veggies was legal lol
 he didnt like that question at all. but he was serious hard to believe