Method for purifying anhydrous aluminum chloride

The invention belongs to the technical field of inorganic chemistry, and discloses an anhydrous aluminum chloride purification method, which comprises: crushing an anhydrous aluminum chloride raw material into powder, introducing the crushed powder and hot air into a sublimator, heating the powder w...

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Bibliographic Details
Main Authors WU CHUNLEI, WANG YUELIN, DUAN XIANJIAN, WANG CHENGGANG, LI ZHENGFA
Format Patent
LanguageChinese
English
Published 09.02.2024
Subjects
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
METALLURGY
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Summary:The invention belongs to the technical field of inorganic chemistry, and discloses an anhydrous aluminum chloride purification method, which comprises: crushing an anhydrous aluminum chloride raw material into powder, introducing the crushed powder and hot air into a sublimator, heating the powder with the hot air to obtain an aluminum trichloride sublimation gas, the temperature in the sublimator is 250-350 DEG C, and the temperature of the hot air is 250-500 DEG C; the aluminum trichloride sublimation gas is introduced into a cyclone separation device for cyclone separation, and aluminum trichloride gas is obtained; and the temperature in the cyclone separation device is 200-300 DEG C. By means of the purification method of the anhydrous aluminum chloride, solid impurities such as water-absorbing aluminum chloride hydrate and ferric trichloride in the raw material anhydrous aluminum chloride can be fully removed, the content of iron in the obtained aluminum trichloride finished product is reduced to 72 ppm
Bibliography:Application Number: CN202311489381