RECOVERY OF SODIUM FROM ALUMINA-EXTRACTED FLY ASH USING CONCENTRATED SODIUM CARBONATE SOLUTION
文献类型：期刊论文
| 作者 | Wang, Z.1,2; Zheng, S.1; Ma, S.1; Ding, J.1; Wang, X.1 |
| 刊名 | JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY
 |
| 出版日期 | 2018 |
| 卷号 | 54期号:2页码:225-232 |
| 关键词 | Fly ash NaCaHSiO4 Sodium carbonate Sodium extraction |
| ISSN号 | 1450-5339 |
| DOI | 10.2298/JMMB180309010W |
| 英文摘要 | A novel method for the recovery of sodium from alumina-extracted fly ash (AEFA) using concentrated Na2CO3 solution is presented. Sodium was efficiently extracted from AEFA, which was mainly composed of NaCaHSiO4 . The factors influencing the process were systematically investigated, and the optimal conditions were determined to be: reaction temperature = 180 degrees C, Na2CO3 concentration = 170 g/L, liquid-to-solid ratio 10 mL/g, and reaction time = 2 h. Under optimal conditions, a low Na2O content of 1.02 wt% of the products, with Na2O extraction rate of 93.79% was achieved. The results indicated that this process was more effective than the recovery of sodium from AEFA using a dilute NaOH solution. Furthermore, this process avoided the production of a dilute NaOH solution, therefore lowering the energy consumption during the concentration and recycling of sodium, when compared with the NaOH-based route. Therefore, the recovery of sodium from AEFA using concentrated Na2CO3 solution is more suitable for use in industrial applications. |
| WOS关键词 | C-S-H ; AL ; DECOMPOSITION ; TOBERMORITE ; RESIDUE ; ALKALI ; AL-27 ; NMR |
| 资助项目 | National Basic Research Program [973 Program][2013CB632601] ; National Natural Science Foundation of China[51274179] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000454256700010 |
| 出版者 | TECHNICAL FACULTY, BOR-SERBIA |
| 资助机构 | National Basic Research Program [973 Program] ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/27686]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Ma, S. |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Z.,Zheng, S.,Ma, S.,et al. RECOVERY OF SODIUM FROM ALUMINA-EXTRACTED FLY ASH USING CONCENTRATED SODIUM CARBONATE SOLUTION[J]. JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY,2018,54(2):225-232. |
| APA | Wang, Z.,Zheng, S.,Ma, S.,Ding, J.,&Wang, X..(2018).RECOVERY OF SODIUM FROM ALUMINA-EXTRACTED FLY ASH USING CONCENTRATED SODIUM CARBONATE SOLUTION.JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY,54(2),225-232. |
| MLA | Wang, Z.,et al."RECOVERY OF SODIUM FROM ALUMINA-EXTRACTED FLY ASH USING CONCENTRATED SODIUM CARBONATE SOLUTION".JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY 54.2(2018):225-232. |
入库方式： OAI收割
来源：过程工程研究所
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