Oxidation behavior of metallurgical silicon slag under non-isothermal and isothermal conditions
文献类型：期刊论文
| 作者 | Cao, Jianwei1; Lu, Jinshan2; Jiang, Longxiang2; Wang, Zhi1 |
| 刊名 | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
 |
| 出版日期 | 2016-05-01 |
| 卷号 | 124期号:2页码:593-599 |
| 关键词 | Metallurgical silicon slag Oxidation behavior Phase composition Microstructure Thermogravimetry |
| ISSN号 | 1388-6150 |
| 英文摘要 | Metallurgical silicon slag is the by-product of metallic silicon industry. The utilization of silicon slag is very limited due to the absence of related researches. In this work, the oxidation behavior of metallurgical silicon slag was studied by means of phase variation under the non-isothermal and isothermal conditions. The crystal structure and phase composition of silicon slags were investigated by X-ray powder diffraction, simultaneous thermal analysis, scanning electron microscopy and thermogravimetry. During the oxidation process, the CO2 emission was progressively enhanced with increasing the oxidation temperature, and the exothermic oxidation primarily occurred above 700 A degrees C. The non-isothermal oxidation of silicon slag powder was a complicated process, involving the oxidation, crystal precipitation and disproportionation processes. The graphite phase was completely removed at 1000 A degrees C. The SiC and cristobalite phases greatly increased at 750 A degrees C and decreased with further increasing the oxidation temperature. For the isothermal oxidation, the Si and SiC phases generally reduced with increasing the soaking time. The cristobalite and tridymite phases increased with the oxidation time. The mass change in slag powders suggested that the isothermal oxidation process consisted of the initial redox reaction and subsequent oxidation reaction. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Thermodynamics ; Chemistry, Analytical ; Chemistry, Physical |
| 研究领域[WOS] | Thermodynamics ; Chemistry |
| 关键词[WOS] | PARTICLE-SIZE ; COPPER SLAG ; CARBIDE ; GLASS ; CRYSTALLIZATION ; REDUCTION ; KINETICS ; POWDERS ; METALS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000373576600003 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/20089]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 3330063, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Jianwei,Lu, Jinshan,Jiang, Longxiang,et al. Oxidation behavior of metallurgical silicon slag under non-isothermal and isothermal conditions[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2016,124(2):593-599. |
| APA | Cao, Jianwei,Lu, Jinshan,Jiang, Longxiang,&Wang, Zhi.(2016).Oxidation behavior of metallurgical silicon slag under non-isothermal and isothermal conditions.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,124(2),593-599. |
| MLA | Cao, Jianwei,et al."Oxidation behavior of metallurgical silicon slag under non-isothermal and isothermal conditions".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 124.2(2016):593-599. |
入库方式： OAI收割
来源：过程工程研究所
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