Mechanochemical destruction of Dechlorane Plus with calcium oxide

Mechanochemical degradation of tetrabromobisphenol A: Performance, products and pathway

“…This phenomenon was also identified by other MC destruction studies [43,49]. However, in the spectra of CaO co-grinding samples ( Fig.…”

Thermal degradation of hexachlorobenzene in the presence of calcium oxide at 340–400°C

“…In this amorphous carbon, the formation of graphitic structure was of importance for elucidating the dechlorination pathway. From the Raman spectra, it was reasonable to conclude that the amorphous carbon was a newly formed species related to the fate of C. This result is similar to that obtained by Zhang et al (2010) in studying mechano-chemical reactions of Dechlorane Plus (DP) with CaO. He figured that the first carbon structure formed in mechanochemical reactions of DP is graphite-like and that the second is amorphous.…”

“…This difference between D 1 and D 2 proves that dechlorination is not the only mechanism of thermal degradation for HCB. A similar observation was described by Zhang et al (2010) and Hall et al (1996) when chlorinated aromatics were co-ground with CaO. These scholars explained that the high-molecular-weight polymerized compound might still contain some organically bound chlorine.…”

Determination of dechlorane flame retardants in soil and fish at Guiyu, an electronic waste recycling site in south China

“…Dechlorination products of DP were detected in a number of environmental samples (De la Torre et al, 2012;Zheng et al, 2010;Zhang et al, 2010;Munoz-Arnanz et al, 2011;Chen et al, 2011), and studies on DP photo-degradation were reported previously Wang et al, 2011). Recently, degradation products of Dec 602 and Dec 604 were also found in Great Lakes fish and arctic Beluga whales (Shen et al, 2012(Shen et al, , 2014, but information on photodegradation of Dec 602, Dec 603, and Dec 604 is limited.…”