焚烧垃圾底灰的主要氧化物组分为SiO2、CaO、Al2O3、Fe2O3、Na2O和MgO,该六元体系相关系和热力学性质对于焚烧底灰渣化处理中玻璃相形成以及重金属低浸出具有重要影响.本文运用计算热力学理论及相图计算方法,对CaO-SiO2-FeOx-MgO四元氧化物体系的热力学性质进行了研究,获得了描述该四元系液相吉布斯自由能的模型参数,并依此计算了不同温度及氧分压下SiO2-FeOx-MgO、CaO-SiO2-FeOx和CaO-SiO2-FeOx-MgO体系液相区和高铁区域的相关系.计算结果表明温度及氧分压对上述3个氧化物体系的液相区及高FeOx区域的相平衡关系具有较大影响
参考文献
| [1] | 何品晶,宋立群,章骅,石爱娟,张沛君.垃圾焚烧炉渣的性质及其利用前景[J].中国环境科学,2003(04):395-398. |
| [2] | Y. Xiao;M. Oorsprong;Y. Yang .Vitrification of bottom ash from a municipal solid waste incinerator[J].Waste Management,2008(6):1020-1026. |
| [3] | Kim S Y;Matsuto T;Tanaka N .Evaluation of pre-treatment methods for landfill disposal of residues from municipal solid waste incineration[J].Waste Management and Research,2003,21(05):416-423. |
| [4] | Lin K L;Chang C T .Leaching characteristics of slag from the melting treatment of municipal solid waste inncinerator ash[J].Journal of Hazardous Materials,2006,135(31):296-302. |
| [5] | F. Andreola;L. Barbieri;S. Hreglich;I. Lancellotti;L. Morselli;F. Passarini;I. Vassura .Reuse of incinerator bottom and fly ashes to obtain glassy materials[J].Journal of hazardous materials,2008(3):1270-1274. |
| [6] | Eriksson G;Pekon A D .Critical evaluation and optimization of the thermodynamic properties and phase diagrams of the CaO-Al2O3,Al2O3-SiO2 and CaO-Al2O3-SiO2 systems[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,1993,24(05):807-816. |
| [7] | In-Ho Jung;Sergei A. Decterov;Arthur. D Pelton .Critical Thermodynamic Evaluation and Optimization of the MgO-Al_2O_3, CaO-MgO-Al_2O_3, and MgO-Al_2O_3-SiO_2 Systems[J].Journal of Phase Equilibria and Diffusion,2004(4):329-345. |
| [8] | Hisao KIMURA;Shuji ENDO;Kohei YAJIMA .Effect of Oxygen Partial Pressure on Liquidus for the CaO-SiO_2-FeO_x System at 1 573K[J].ISIJ International,2004(12):2040-2045. |
| [9] | Dayal R R;Glasser F P .Phase relations in the system CaO-Al2O3-Fe2O3[J].SciCeram,1967,3:191-214. |
| [10] | Zhang Z .Literature Review of CaO-Al2O3-SiO2-FeOx-MgO-Na2O system of vitrified bottom ash slag from municipal solid waste incinerator[R].TU Delft Internal Report,2007. |
| [11] | 乔芝郁.冶金和材料计算物理化学[M].北京:机械工业出版社,1999 |
| [12] | Arthur D. Pelton.Thermodynamic database development-modeling and phase diagram calculations in oxide systems[J].稀有金属（英文版）,2006(05):473-480. |
| [13] | Jung H;Decterov S A;Pelton A D .Critical thermodynamic evaluation and optimization of the CaO-MgO-SiO2 system[J].Journal of the European Ceramic Society,2005,25(04):313-333. |
| [14] | Jung, IH;Decterov, SA;Pelton, AD .Critical thermodynamic evaluation and optimization of the Fe-Mg-O system[J].The journal of physics and chemistry of solids,2004(10):1683-1695. |
| [15] | Ogura T;Fujiwara R;Mochizuki R et al.Activity determinator for the automatic measurements of the chemical potentials of FeO in metallurgical slags[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,1992,23(04):459-465. |
| [16] | Speidel D H;Osbom E F .Phase equilibria in the system MgO-FeO-Fe2O3:the 1300 ℃ isothermal section and extrapolations to other temperatures[J].Journal of the American Ceramic Society,1967,50(05):243-248. |
| [17] | Hayes P C;Jak E;Nikolic S .Phase equilibria in ferrous calcium silicate slags:part 1.intermediate oxygen partial pressure in the temperature range 1 200 ℃ to 1 350 ℃[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,2008,39(04):179-188. |
| [18] | Hisao KIMURA;Tsutomu OGAWA;Mitsuru KAKIKI;Arata MATSUMOTO;Fumitaka TSUKIHASHI .Effect of Al_2O_3 and MgO Additions on Liquidus for the CaO-SiO_2-FeO_x System at 1573 K[J].ISIJ International,2005(4):506-512. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%