The Preparation of Anhydrous Thorium Tetrachloride
作者:
DeanO. C.,
ChandlerJ. M.,
期刊:
Nuclear Science and Engineering
(Taylor Available online 1957)
卷期:
Volume 2,
issue 1
页码: 57-72
ISSN:0029-5639
年代: 1957
DOI:10.13182/NSE57-A15573
出版商: Taylor&Francis
数据来源: Taylor
摘要:
Thorium tetrachloride is an important intermediate in the production of thorium metal. The readiness with which the hydrated salt hydrolyzes at high temperatures with its own water of hydration makes use of the anhydrous salt necessary for this purpose. The preparation of pure anhydrous thorium tetrachloride from aqueous solutions is very nearly impossible because of its hydrolytic behavior.The dry chlorination of the oxide, oxalate, carbonate, carbides, sulfides, and nitrate with various chlorinating agents has been evaluated on a laboratory scale. Chlorination of the oxide, oxalate, and carbonate in the presence of carbon and direct chlorination of the carbide with chlorine appear to be the most promising methods. The results of laboratory studies of the ThO2—C—Cl2, the Th(C2O4)2—CCl4—Cl2, and the Th(C2O4)2—CO—Cl2systems on a 1-lb batch scale are presented. Flowsheets, optimum conditions, and the thermochemistry of the reactions involved are discussed.
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