Waste Treatment Technologies. Preparation and Properties of Iron Oxide-Carbon Composite Catalysts for Dechlorination.

The effect of some fillers on PVC degradation

“…Sakata et al [20][21][22][23] studied the catalytic dehydrochlorination of PVC containing polymer mixtures. They reported that iron oxides, iron-, calcium-and potassium-based carbon composite catalysts were very effective for the removal of HCl.…”

Preparation, characterization and reactivity of calcium–carbon, iron–calcium–carbon composites for dechlorination

“…The differences in CCH conversion and composition of products with different phenol resins (A and B) are small. In an another study, iron oxide carbon composite (Fe-C) showed higher activities with the phenol resin A [13,14]. The differences in catalytic properties are small for both composites obtained at carbonization temperatures of 773, 873 and 973 K. The CCH conversion increases with the increase of reaction temperature and then the CCH conversions of both composites are same as 99.6% at 1073 K. Furthermore, the benzene yields produced by the dehydrogenation reaction are small with all experiments ( Table 2).…”

“…Meanwhile, the reason which both reactivities become equal at 1073 K is considered that the sublimation of free carbon over Fe and Ca particles proceeds. The decrease of Fe-Ca-C specific surface by the sintering of Fe 3 O 4 and Ca 2 Fe 2 O 5 is also supposed to decrease the reactivity [13]. With the increase of reaction temperature (473-523 K) and carbonization temperature (873-1073 K), the CCH conversion activity was found to increase with Ca-C and Fe-Ca-C composites.…”