FIELD: mining industry.
SUBSTANCE: method comprises charging cryolite in rinsing water, washing it at stirring, and dehydration of washed product. Washing is continued until content of sodium sulfate achieves 45-65% that in initial cryolite, which requires time from 5 to 60 min at rinsing water temperature 25 to 70°C and water-to-cryolite weight ratio (3-10):1.
EFFECT: reduced mechanical loss of cryolite due to lesser degree of particle grinding at maximum possible degree of sodium sulfate removal.
4 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR TREATMENT OF REGENERATION CRYOLITE FROM SODIUM SULFATE | 2001 |
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