Establishment of physicochemical database of oxyhalogen compounds for advanced recycling
| Project/Area Number |
19206097
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Recycling engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
NAKAMURA Takashi Tohoku University, 多元物質科学研究所, 教授 (20112360)
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| Co-Investigator(Kenkyū-buntansha) |
SHIBATA Etsuro 東北大学, 多元物質科学研究所, 准教授 (70312650)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| 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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| Keywords | 廃棄物再資源化 / オキシハロゲン / 物理化学 / 熱力学 |
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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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Report
(4 results)
Research Products
(30 results)
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[Presentation] Bromination of ZnO during thermal treatment of TBBPA-effect of temperature and time2010
Author(s)
Grabda, M., Oleszek-Kudlak, S., Rzyman, M., Shibata, E., Nakamura, T.
Organizer
Sustainability through Resource Conservation and Recycling
Place of Presentation
Cape Town, South Africa
Year and Date
2010-04-05
Related Report
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[Presentation] romination of heavy metal oxides during thermal decomposition of tetrabromobisphenol A2010
Author(s)
Oleszek-Kudlak, S., Grabda, M., Rzyman, M., Shibata, E., Nakamura, T.
Organizer
Sustainability through Resource Conservation and Recycling
Place of Presentation
Cape Town, South Africa
Year and Date
2010-04-05
Related Report
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[Presentation] Kinetics of bromination of ZnO during thermal treatment of TBBPA and vaporization of formed products under inert atmosphere and in presence of oxygen2009
Author(s)
Oleszek-Kudlak, S., Grabda, Shibata, E., M., Rzyman, M., Nakamura, T.
Organizer
The 10th International Symposium on East Asian Resources Recycling Technology (EARTH 2009)
Place of Presentation
Jejudo, Korea
Year and Date
2009-11-03
Related Report
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