Synthesis of Enriched 10B Boric Acid of Nuclear Grade

An economic and effective method of preparing enriched 10B boric acid was established by chemical reactionof enriched 10BF3 and CaCO3. A process of boron trifluoride reacting with water was investigated under certainconditions. Calcium carbonate was selected to counteract hydrofluoric acid followed...

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Published inTransactions of Tianjin University Vol. 20; no. 6; pp. 458 - 462
Main Authors Zhang, Lei, Zhang, Weijiang, Xu, Jiao, Ren, Xin
Format Journal Article
LanguageEnglish
Published Heidelberg Tianjin University 01.12.2014
Subjects
10B
acid
boric
boron
calcium
carbonate
Engineering
enriched
fluoboric
fluoride
Humanities and Social Sciences
hydrogen
Mechanical Engineering
multidisciplinary
Science
trifluoride
boron trifluoride
calcium carbonate
fluoboric acid
B boric acid
enriched
hydrogen fluoride
enriched 10B boric acid
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Summary:An economic and effective method of preparing enriched 10B boric acid was established by chemical reactionof enriched 10BF3 and CaCO3. A process of boron trifluoride reacting with water was investigated under certainconditions. Calcium carbonate was selected to counteract hydrofluoric acid followed on. Some key operation factorswere investigated, such as temperature, reaction time and the ratio of CaCO3 to 10BF3. The results showed that the yieldof enriched 10B boric acid could reach 97. 2% and the purity was up to 94. 1% under the following conditions： the temperaturewas 50-60,℃, the reaction time was 28 h and the ratio of CaCO3 to 10BF3 was 4. In addition, after recrystallizationand titration analysis, the purity of the product could reach over 99. 2% from 94.1%.
Bibliography:12-1248/T
ISSN:1006-4982
1995-8196
DOI:10.1007/s12209-014-2303-x