Calcium sulfate whisker prepared by flue gas desulfurization gypsum: A physical-chemical coupling production process
文献类型：期刊论文
| 作者 | Gao, Jing2; Li, Qiang2; Liu, Fuli1,3 |
| 刊名 | CHINESE JOURNAL OF CHEMICAL ENGINEERING
 |
| 出版日期 | 2020-08-01 |
| 卷号 | 28期号:8页码:2221-2226 |
| 关键词 | Flue gas desulfurization gypsum Calcium sulfate whiskers Crystallization kinetic Physical-chemical coupling |
| ISSN号 | 1004-9541 |
| DOI | 10.1016/j.cjche.2020.05.021 |
| 英文摘要 | In this paper, the solid waste desulfurization gypsum produced by coal-fired power plants was used as a raw material to prepare calcium sulfate whiskers with high application prospects. Calcium sulfate whiskers with uniform morphology and high aspect ratio can be prepared by hydrothermal method in sulfuric acid solution. A new process of desulfurization gypsum activated by high-energy grinding to reduce the reaction temperature and sulfuric acid concentration was developed. Through the comparison of product morphology, the best grinding time was determined to be 3.5 h. The mechanism of desulfurization gypsum through physical-chemical coupling to reduce energy consumption was clarified. The activation of desulfurization gypsum by grinding and the acidic environment provided by the sulfuric acid solution made the calcium sulfate solution reached rapid saturation and accelerated the nucleation rate. By calculating the conversion and crystallization rate of calcium sulfate whiskers, it was found that there were obvious "autocatalytic" kinetic characteristics during the crystallization process. (C) 2020 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved. |
| WOS关键词 | CARBONATION |
| 资助项目 | State Key Laboratory of Mineral Processing Science and Technology Open Fund[BGRIMM-KJSKL-2017-16] ; Liaoning Provincial Department of Education Youth Project[LJ2017QL028] ; Coal Resource Safety Mining and Clean Utilization Engineering Research Center Open Fund[LNTU15KF18] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000573396100026 |
| 出版者 | CHEMICAL INDUSTRY PRESS CO LTD |
| 资助机构 | State Key Laboratory of Mineral Processing Science and Technology Open Fund ; Liaoning Provincial Department of Education Youth Project ; Coal Resource Safety Mining and Clean Utilization Engineering Research Center Open Fund |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/42254]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Liu, Fuli |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Liaoning Tech Univ, Coll Min, Fuxing 123000, Peoples R China 3.China Univ Min & Technol, Coll Chem & Environm Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Jing,Li, Qiang,Liu, Fuli. Calcium sulfate whisker prepared by flue gas desulfurization gypsum: A physical-chemical coupling production process[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2020,28(8):2221-2226. |
| APA | Gao, Jing,Li, Qiang,&Liu, Fuli.(2020).Calcium sulfate whisker prepared by flue gas desulfurization gypsum: A physical-chemical coupling production process.CHINESE JOURNAL OF CHEMICAL ENGINEERING,28(8),2221-2226. |
| MLA | Gao, Jing,et al."Calcium sulfate whisker prepared by flue gas desulfurization gypsum: A physical-chemical coupling production process".CHINESE JOURNAL OF CHEMICAL ENGINEERING 28.8(2020):2221-2226. |
入库方式： OAI收割
来源：过程工程研究所
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