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REMOVAL OF HYDROGEN FLUORIDE FROM GASEOUS MIXTURE BY ABSORPTION ON ALKALINE EARTH METAL FLUORIDE
REMOVAL OF HYDROGEN FLUORIDE FROM GASEOUS MIXTURE BY ABSORPTION ON ALKALINE EARTH METAL FLUORIDE
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机译:碱土金属氟化物的吸附脱除气态混合物中的氟化氢
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摘要
REMOVAL OF HYDROGEN FLUORIDE FROM GASEOUS MIXTUREBY ABSORPTION ON ALKALINE EARTH METAL FLUORIDEABSTRACT OF THE DISCLOSUREA gaseous mixture containing up to 20% of hydrogen fluo-ride and other gases inert to alkaline earth metal fluorides ispassed in contact with particulate anhydrous alkaline earth metalfluoride prepared by the fluorination of anhydrous alkaline earthmetal chloride in the absence of water. After the anhydrous alka-line earth metal fluoride has taken up the desired amount of hydro-gen fluoride, up to its absorption capacity, the hydrogen fluorideis removed therefrom, e.g. by heat regeneration, and the alkalineearth metal fluoride is reused to absorb additional hydrogen fluo-ride from said gaseous mixtures.
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