| 摘要 |
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 |
