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| Nucleation, growth and aggregation kinetics of monosodium aluminate hydrate from unseeded sodium aluminate solution | |
Zhou, Bingxin1,2,4; Cao, Shaotao1,2 ; You, Shaowei1,2; Chen, Fangfang1,2; Zhang, Fangfang1,2; Li, Bo3; Zhang, Yi1,2
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| 2019-11-01 | |
| Source Publication | JOURNAL OF CRYSTAL GROWTH
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| ISSN | 0022-0248 |
| Volume | 525Pages:7 |
| Abstract | The crystallization of monosodium aluminate hydrate (MAH) from sodium aluminate solution is the key step in the hydro-chemical process for treating Bayer red mud. The nucleation, growth and aggregation kinetics of MAH from unseeded sodium aluminate solution with low supersaturation was studied. It was found that the increase of temperature or the decrease of initial alpha(k) (molar ratio of Na2O and Al2O3 in aluminate solution) could lead to the increase of average crystal size while the increase of agitation speed had an adverse effect. The growth rate, the nucleation rate and the aggregation kernel were determined using a volume-independent growth aggregation model. The calculation of aggregation kernel was divided into two parts in terms of crystal size: smaller than 10 mu m and larger than 10 mu m. Results implied that small crystals below 10 mu m aggregated more significantly than large crystals. The aggregation dominated the enlargement of small crystals, but the enlargement of large crystals mainly stemmed from the growth rather than the aggregation. |
| Keyword | Nucleation Growth Aggregation Alumina production Monosodium aluminate hydrate |
| DOI | 10.1016/j.jcrysgro.2019.125210 |
| Language | 英语 |
| WOS Keyword | CRYSTALLIZATION ; PRECIPITATION |
| Funding Project | National Natural Science Foundation of China[51674233] ; Henan Transfer Project of CAS Scientific and Technological Achievements[2019103] ; Guangxi Natural Science Foundation[2016GXNSFEA380002] ; Shanxi Province Coal Based Low-carbon Technology Major Projects[MC2016-05] ; Major Science and Technology Program for Water Pollution Control and Treatment[2018ZX07402005] |
| WOS Research Area | Crystallography ; Materials Science ; Physics |
| WOS Subject | Crystallography ; Materials Science, Multidisciplinary ; Physics, Applied |
| Funding Organization | National Natural Science Foundation of China ; Henan Transfer Project of CAS Scientific and Technological Achievements ; Guangxi Natural Science Foundation ; Shanxi Province Coal Based Low-carbon Technology Major Projects ; Major Science and Technology Program for Water Pollution Control and Treatment |
| WOS ID | WOS:000487828000008 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/31057 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Cao, Shaotao; You, Shaowei |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 3.Coalmine Alumina Co Ltd, Sanmenxia 472100, Henan, Peoples R China 4.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China |
| Recommended Citation GB/T 7714 | Zhou, Bingxin,Cao, Shaotao,You, Shaowei,et al. Nucleation, growth and aggregation kinetics of monosodium aluminate hydrate from unseeded sodium aluminate solution[J]. JOURNAL OF CRYSTAL GROWTH,2019,525:7. |
| APA | Zhou, Bingxin.,Cao, Shaotao.,You, Shaowei.,Chen, Fangfang.,Zhang, Fangfang.,...&Zhang, Yi.(2019).Nucleation, growth and aggregation kinetics of monosodium aluminate hydrate from unseeded sodium aluminate solution.JOURNAL OF CRYSTAL GROWTH,525,7. |
| MLA | Zhou, Bingxin,et al."Nucleation, growth and aggregation kinetics of monosodium aluminate hydrate from unseeded sodium aluminate solution".JOURNAL OF CRYSTAL GROWTH 525(2019):7. |
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