학술논문
CYCLOHEXANONE EXTRACTION OF TANTALUM AND NIOBIUM FROM SULFURIC ACID SOLUTIONS
Document Type
Journal Article
Author
Source
Zhur. Priklad. Khim.; Vol: 32; Other Information: Orig. Receipt Date: 31-DEC-60
Subject
Language
Russian
Abstract
Experiments confirmed the preferential extraction of Ta from mixtures with Nb in sulfuric acid and ammonium nitrate. Ta concentration in the aqueous phase was reduced to 0.03 to 0.04% of the initial value while Nb extraction did not exceed 70%. Extracted Ta is complexed as a fluosuliate which remains stable in sulfuric acid and ammonium sulfate washings while complexed Nb is worked out. (R.V.J.)