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Separation Science and Technology Volume 56, 2021 - Issue 6
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Metal recovery

Processing of metallic bismuth for the production of bismuth compounds

Yu M. Yukhina Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
,
A. S. Daminovb Rare Metals Plant LLC, Novosibirsk Region, Russia
,
O. A. Logutenkoa Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, RussiaCorrespondence[email protected]
,
E. S. Koledovaa Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
&
K. V. Mishchenkoa Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
Pages 1168-1176 | Received 23 Dec 2019, Accepted 03 Apr 2020, Published online: 21 Apr 2020
 
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ABSTRACT

The hydrolytic processing of bismuth-containing nitrate solutions resulting in the production of high purity basic bismuth nitrate and carbonate, bismuth nitrate and bismuth oxide was studied. The developed technology is based on the oxidation of metallic bismuth followed by the dissolution of the obtained technical bismuth oxide in nitric acid and its purification from metal impurities by hydrolysis of Bi(NO3)3 in aqueous solution under alkaline conditions or with excess water to produce basic bismuth nitrate. The pilot-plant trials confirmed the viability of the developed technology.

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