The volatilization kinetics of antimony trisulfide in steam atmosphere was studied with thermogravimetry at temperatures from 923 to 1123 K. A theoretical model was developed to calculate the overall rate constant and the mass transfer coefficient in gas phases. The experimental results show that the volatilization rate is enhanced with increasing temperature and steam flow rate. The volatilization rate is mainly controlled by the mass transport in gas phases. The apparent activation energy for the process is found to be 59.93 kJ/mol. It is demonstrated that Sb2S3is dominantly oxidized into Sb2O3 and H2S by water vapor in the volatilization process. Some antimony metal is formed. The reaction mechanism is discussed in accordance with experimental data.
参考文献
| [1] | Tiancong ZHAO.Antimony[M].北京:冶金工业出版社,1987:200. |
| [2] | Kirk-Othmer.Encyclopedia of Chemical Technology[M].New York, Wiley/Interscience,1983:276. |
| [3] | E Ozberk;R I L Guthrie .[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,1986,17:86. |
| [4] | L Komorova;A Holmstrom;I Imris Sandinavian .[J].Journal of Metallurgy,1986,14:103. |
| [5] | Gushen SHENG;Baowei LI;Maolin WU.Transport Fundamentals of Metallurgy[M].北京:冶金工业出版社,2000:432. |
| [6] | Y Kashiaya;A W Cramb .[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,1998,29:763. |
| [7] | Qiyong HAN.Kinetics of Metallurgical Process[M].北京:冶金工业出版社,1983:195. |
| [8] | G G Gospodinov;A S Pashinkin;Z Boncheva-Mladenova;A V Novoselova .Izvestia Akademii Nauk SSSR[J].Neorganicheskie Materialy,1970,4:1242. |
| [9] | V Piacente;P Scardaia .[J].Journal of Alloys and Compounds,1992,178:101. |
| [10] | C L Suliivan;J E Prusacryk;K D Carson .[J].Journal of Chemical Physics,1970,53:1289. |
| [11] | F M Faure;M J Mitchell;R W Bartlett .[J].High Temp Technology,1972,4:181. |
| [12] | A V Steblevskii;V1 V Zharov;A S Alikhanyan;V I Gorgoraki A S Pashinkin .[J].Russian Journal of Inorganic Chemistry,1989,34:891. |
| [13] | A V Steblevskii;V1 V Zharov;A S Alikhanyan;A S Pashinkin V I Gorgoraki .[J].Russian Journal of Inorganic Chemistry,1989,34:1032. |
| [14] | A C Shendiyapin;U N Nestlerov;E T Ibragimov .Davlenye para trehsernistoy surmy[R].N Kashskoy SSR Institut Metallurgii i Obogashceniya, No 1037-75 |
| [15] | V P Zakaznova-Iakovleva;Art A Migdisov;O M Suleimenov;A E Williams-Jones Yu V Alekhin .[J].Geochimica et Cosmochimica Acta,2001,65:289. |
| [16] | R Ramachandran;C Nirupam .[J].Zeitschrift fur Metallkunde,1988,79:700. |
| [17] | P C Chaubal;M Nagamori .[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,1988,19:547. |
| [18] | O Kubaschewski;C B Alcock;Zhuxian QIU;Yingjiao LIAN Ximeng LI Jiega n WANG.Metallurgical Thermochemistry[M].北京:冶金工业出版社,1985:514. |
| [19] | K Itagaki;T Nishimura .[J].Mining and Metallurgical Institute of Japan,1986,13:29. |
| [20] | Yingjiao LIANG;Yinchang CHE.Thermodynamic Data Handbook of Inorganic Substances[M].沈阳:东北大学出版社,1983:171. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%