Aluminum extraction with nitrogen-containing phenolic extractants
Liquid extraction is a promising method of aluminum extraction from potassium bittern (mother liquors) solutions. Extractants are nitrogen containing chelating phenol type compounds, namely: N-(2-hydroxy-5-nonylbenzyl)-β,β-dihydroxyethylamine (NBEA-0) and N-(2-hydroxy- 5-nonylbenzyl)-β-hydroxyethylm...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | Russian |
| Published: |
MIREA - Russian Technological University
2015-02-01
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| Series: | Тонкие химические технологии |
| Subjects: | |
| Online Access: | https://www.finechem-mirea.ru/jour/article/view/221 |
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| Summary: | Liquid extraction is a promising method of aluminum extraction from potassium bittern (mother liquors) solutions. Extractants are nitrogen containing chelating phenol type compounds, namely: N-(2-hydroxy-5-nonylbenzyl)-β,β-dihydroxyethylamine (NBEA-0) and N-(2-hydroxy- 5-nonylbenzyl)-β-hydroxyethylmethylamine (NBEA-2) dissolved in a mixture containing 75% vol. of octane + 25% of octanol. The most effective extraction parameters are as follows: extraction time 15 min, contamination of K2CO3 350 grams per liter, alkali concentration 4.5 M, concentration of the extractants more than 0.3 M. Under given conditions metal: extractant ratio is 1:1. The back-extraction was presumed to be performed using 3.5 М alkaline solutions. It was determined that results obtained when NBEA-0 was used as an extractant are insignificantly better in comparison with using NBEA-2. |
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| ISSN: | 2410-6593 2686-7575 |