Behavior of sodium oxalate in seeded precipitation process of sodium aluminate solution
Sodium oxalate has negative effects on alumina produced by the Bayer process. The behavior of sodium oxalate in the seeded precipitation process of a sodium aluminate solution was investigated. The particle size and morphology of crystallization, as well as the crystal habit of sodium oxalate, and t...
| Váldodahkkit: | , , |
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| Materiálatiipa: | Artihkal |
| Giella: | zho |
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Science Press
2018-01-01
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| Ráidu: | 工程科学学报 |
| Fáttát: | |
| Liŋkkat: | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2018.01.007 |
| _version_ | 1827062169227755520 |
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| author | FAN Shang CHEN Wen-mi LIANG Gao-jie |
| author_facet | FAN Shang CHEN Wen-mi LIANG Gao-jie |
| author_sort | FAN Shang |
| collection | DOAJ |
| description | Sodium oxalate has negative effects on alumina produced by the Bayer process. The behavior of sodium oxalate in the seeded precipitation process of a sodium aluminate solution was investigated. The particle size and morphology of crystallization, as well as the crystal habit of sodium oxalate, and the interaction between sodium oxalate and gibbsite in synthetic or industrial sodium aluminate solutions were also investigated. The results show that sodium oxalate precipitates on the surface or gibbsite clearance, such that the secondary nucleation of gibbsite increases, and the agglomeration of gibbsite is seriously hindered. This is considered as the main cause of gibbsite refinement. |
| first_indexed | 2025-02-18T19:36:52Z |
| format | Article |
| id | doaj.art-3fbff93aa84a428297cbc04cf061847e |
| institution | Directory Open Access Journal |
| issn | 2095-9389 |
| language | zho |
| last_indexed | 2025-02-18T19:36:52Z |
| publishDate | 2018-01-01 |
| publisher | Science Press |
| record_format | Article |
| series | 工程科学学报 |
| spelling | doaj.art-3fbff93aa84a428297cbc04cf061847e2024-10-18T06:34:26ZzhoScience Press工程科学学报2095-93892018-01-01401515810.13374/j.issn2095-9389.2018.01.007Behavior of sodium oxalate in seeded precipitation process of sodium aluminate solutionFAN Shang0CHEN Wen-mi1LIANG Gao-jie2School of Metallurgy and Environment, Central South University, Changsha 410083, ChinaSchool of Metallurgy and Environment, Central South University, Changsha 410083, ChinaSchool of Metallurgy and Environment, Central South University, Changsha 410083, ChinaSodium oxalate has negative effects on alumina produced by the Bayer process. The behavior of sodium oxalate in the seeded precipitation process of a sodium aluminate solution was investigated. The particle size and morphology of crystallization, as well as the crystal habit of sodium oxalate, and the interaction between sodium oxalate and gibbsite in synthetic or industrial sodium aluminate solutions were also investigated. The results show that sodium oxalate precipitates on the surface or gibbsite clearance, such that the secondary nucleation of gibbsite increases, and the agglomeration of gibbsite is seriously hindered. This is considered as the main cause of gibbsite refinement.http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2018.01.007sodium aluminate solutionseeded precipitationsodium oxalategranularity |
| spellingShingle | FAN Shang CHEN Wen-mi LIANG Gao-jie Behavior of sodium oxalate in seeded precipitation process of sodium aluminate solution 工程科学学报 sodium aluminate solution seeded precipitation sodium oxalate granularity |
| title | Behavior of sodium oxalate in seeded precipitation process of sodium aluminate solution |
| title_full | Behavior of sodium oxalate in seeded precipitation process of sodium aluminate solution |
| title_fullStr | Behavior of sodium oxalate in seeded precipitation process of sodium aluminate solution |
| title_full_unstemmed | Behavior of sodium oxalate in seeded precipitation process of sodium aluminate solution |
| title_short | Behavior of sodium oxalate in seeded precipitation process of sodium aluminate solution |
| title_sort | behavior of sodium oxalate in seeded precipitation process of sodium aluminate solution |
| topic | sodium aluminate solution seeded precipitation sodium oxalate granularity |
| url | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2018.01.007 |
| work_keys_str_mv | AT fanshang behaviorofsodiumoxalateinseededprecipitationprocessofsodiumaluminatesolution AT chenwenmi behaviorofsodiumoxalateinseededprecipitationprocessofsodiumaluminatesolution AT lianggaojie behaviorofsodiumoxalateinseededprecipitationprocessofsodiumaluminatesolution |