Abstract
A new method for production of ammonium metatungstate (AMT) directly from ammonium tungstate solution—Donnan dialysis method is advanced. Laboratory experiments are conducted by a Donnan dialysis cell with the membrane area of 140 mm ×200 mm. The result shows that the transformation rate of AMT reaches 370 g-WO3/(m2·h), the recovery ratio of AMT by the Donnan dialysis method is nearly 100%, and the loss of tungsten is less than 0.2%. It has been proved that the Donnan dialysis method is effective for production of AMT.
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References
Shi Yahua. Effect of impurities in AMT solution on activity of tungstencontaining catalyst for hydrodeoxydization and hydrosulfurization. Tungsten Industry in China(in Chinese), 1992(8):11
Xu Zhichan, Zhang Ping. The present and future of AMT production technology. Tungsten Industry in China(in Chinese), 1991(3):12
Liu Xia, Sun Jian, Lu Tiejun, et al. Preparation of APT and AMT by solvent extraction. Tungsten Industry in China(in Chinese), 1993(5):14
Kojima T, Furusaki S, Sato K. A fundamental study on recovery of copper with a cation exchange membrane. J Chemical Engineering, 1982, 60:650
Ho C C, Jan D S, Tsai F N. Membrane diffusion-controlled kinetics of ionic transport. J Membrane Sci, 1993, 81:287
Miyoshi H. Diffusion coefficients of ions through ion-exchange membranes for donnan dialysis using ions of the same valence. Chemical Engineering Science, 1997,52(7):1087
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Synopsis of the first author Zhou Kanggen, professor, born in March 1963, majoring in extraction matallurgy of rare metals, application of membrane technology in metallurgical process.
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Zhou, K., Chen, X. A new production method of ammonium metatungstate—Donnan dialysis method. J Cent. South Univ. Technol. 6, 78–81 (1999). https://doi.org/10.1007/s11771-999-0002-x
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DOI: https://doi.org/10.1007/s11771-999-0002-x