Preparation of Catalyst from Phosphorous Rock Using an Improved Wet Process for Transesterification Reaction
文献类型：期刊论文
| 作者 | Wang, Yunshan4; M., Tang; A., Yusuf; Y., Wang; X., Zhang; G., Yang; J., He; H., Jin; Y., Sun |
| 刊名 | Industrial and Engineering Chemistry Research
 |
| 出版日期 | 2021-06-09 |
| 卷号 | 60期号:22页码:8094-8107 |
| 关键词 | Alumina - Calcium sulfate - Reusability - Titanium dioxide - Hematite - Lead oxide - Gypsum - Magnesium compounds - Phosphorus - Catalysts - Aluminum oxide - Heavy metals |
| ISSN号 | 8885885 |
| DOI | 10.1021/acs.iecr.1c01072 |
| 英文摘要 | Gypsum (CaSO4路2H2O) with active catalytic performance was prepared from phosphorous rock through an improved clean wet process. The impact of the preparation conditions was extensively analyzed to identify the statistical significance toward the compositions of the prepared gypsum and catalytic performances during the transesterification reaction. The prepared catalyst predominantly contains CaSO4 (93%) with contaminations of silica (5%), P2O5 (0.25%), Fe2O3 (0.52%), Al2O3 (0.24%), and TiO2 (0.12%). Heavy-metal oxides, that is, Cr2O3, PbO, and CuO, were not detected from the prepared catalyst. The contaminants in gypsum are in the form of complicated composites such as SiO2, (Na2, K2)SiF6, MgF2, AlF3, Ca5(PO4)3F, and Ca3(PO4)2. The significant operational parameters, namely, the crystallization temperature and duration toward the catalytic performance, were identified by ANOVA. The Br枚nsted acidic sites from the ionic S and O, which might be in the form of S-O or SO as the surface functional groups, attribute to transesterification catalysis. The theoretical simulation suggests that different ionic sulfates might co-exist on the surface of crystallite gypsum. The transport of reagents to the surface of catalytic sites also plays an important role under the investigated experimental conditions. The reusability study indicates an approximate 10% deactivation after the reaction. 漏 2021 American Chemical Society. |
| 学科主题 | Silica |
| 项目编号 | This work was supported by Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province (2020E10018), National Key R&D Program of China (2018YFC1903500), FIG grant from Faculty Inspiration grant UNNC (2019FIG), UNNC FoSE New Researchers grant 2020 (I01210100011), Qianjiang Talent Scheme-(QJD1803014), Ningbo Science and Technology Innovation 2025 Key Project (2020Z100), and Ningbo Municipal Commonweal Key Program (2019C10033 and 2019C10104). The authors would like to sincerely appreciate the critical and insightful comments raised by anonymous reviewers which significantly improved the quality of this work. |
| 出版者 | American Chemical Society |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/60335]  |
| 作者单位 | 1.School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup; Western Australia; 6027, Australia 2.School of Computer Science, University of Nottingham, Ningbo; 315100, China 3.Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province, University of Nottingham, Ningbo; 315100, China 4.National Engineering Laboratory of Cleaner Hydrometallurgical Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China |
| 推荐引用方式 GB/T 7714 | Wang, Yunshan,M., Tang,A., Yusuf,et al. Preparation of Catalyst from Phosphorous Rock Using an Improved Wet Process for Transesterification Reaction[J]. Industrial and Engineering Chemistry Research,2021,60(22):8094-8107. |
| APA | Wang, Yunshan.,M., Tang.,A., Yusuf.,Y., Wang.,X., Zhang.,...&Y., Sun.(2021).Preparation of Catalyst from Phosphorous Rock Using an Improved Wet Process for Transesterification Reaction.Industrial and Engineering Chemistry Research,60(22),8094-8107. |
| MLA | Wang, Yunshan,et al."Preparation of Catalyst from Phosphorous Rock Using an Improved Wet Process for Transesterification Reaction".Industrial and Engineering Chemistry Research 60.22(2021):8094-8107. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。