| Budget Amount *help |
¥48,230,000 (Direct Cost: ¥37,100,000、Indirect Cost: ¥11,130,000)
Fiscal Year 2009: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2008: ¥21,580,000 (Direct Cost: ¥16,600,000、Indirect Cost: ¥4,980,000)
Fiscal Year 2007: ¥21,450,000 (Direct Cost: ¥16,500,000、Indirect Cost: ¥4,950,000)
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| Research Abstract |
In this study, we investigated the formation mechanisms of CaClOH by chlorination of Ca(OH)_2 using HCl gas. Ca(OH)_2 powder was placed in the gas flow reactor, and then chlorinated by mixed gas of HCl, H_2O, O_2 and Ar. In the experimental results, CaClOH formation was obviously increased with reaction time. And, CaClOH formation was slightly increased with increase in H_2O content in gas. In thermodynamic considerations, Ca(OH)_2 is equilibrated with CaClOH, not with CaCl_2.
Thermodynamic considerations indicate that base metal oxides such as ZnO, PbO, Cu_2O, Sb_2O_3 etc.should easily react with HBr, the main gaseous product from the thermal decomposition of tetrabromobisphenol A (TBBPA), to form low boiling point metallic bromides suitable for volatile separation. In this work a differential scanning calorimeter and laboratory-scale furnace was used to investigate the scope and conditions for the bromination of ZnO, Sb_2O_3, PbO, Fe_2O_3 and Cu_2O by the thermal decomposition of TBBPA.
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