Названия:
TECHNOLOGY OF OBTAINING MGO FROM EPSOMITE LOCAL RAW MATERIAL
Автор:
Orazberdiyev Kyyasberdi, Ovezsahedov Saparmyrat, Ryzayev Kerim
Расположение страниц:
454-458
Язык:
Аннотация:
A simple, efficient and inexpensive method of purifying magnesium sulfate from mixtures of epsomite and halite. The method allows for the preparation of substantially pure magnesium sulfate products. The method generally involves heating a mixture of epsomite and halite to form clusters of lower hydrated magnesium sulfate crystals and subsequently applying slight pressure to the clusters so that they collapse to yield fine, less hydrated magnesium sulfate crystals which can then be easily separated from the comparatively coarse halite crystals. The less hydrated magnesium sulfate crystals can be recrystallized to provide highly purified epsomite which can then be dehydrated to provide kieserite or anhydrous magnesium sulfate.