Germanium recovery using polyphenol microspheres prepared by horseradish peroxidase reaction |
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Authors: | Atsunori Nozoe Minoru Abe Keisuke Ohto Hidetaka Kawakita |
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Affiliation: | Department of Applied Chemistry, Saga University, 1 Honjo, Saga 840‐8502, Japan |
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Abstract: | BACKGROUND: The formation of polyphenol microspheres by the polymerization of 3‐methylcatechol was performed in a methanol/phosphate buffer solution using horseradish peroxidase (HRP), without the use of a surfactant or a water/oil interface, to be used for germanium recovery. RESULTS: The polyphenol microspheres were of diameter 1 mm. The functional group density of phenol group in the polymer was approximately 15 mol kg?1 determined by the Folin‐Denis method. In batchwise experiments, the amount of germanium adsorbed was 0.23 mol kg?1. CONCLUSION: Because germanium is a rare metal, a system for its recovery is required. Using the proposed system, continuous recovery of germanium can be achieved using multilayered microspheres. Copyright © 2011 Society of Chemical Industry |
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Keywords: | polyphenol microsphere horseradish peroxidase germanium recovery |
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