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Status and Prospect of Preparative Methods for High-purity Gold
Author(s): 
Pages: 81-86
Year: Issue:  3
Journal: Precious Metals

Keyword:  nonferrous metallurgyhigh-purity goldchemical reductionsolvent extractionelectrolysispurification;
Abstract: High-purity gold (wAu>99.999%) is widely applied to target material, lead wire and integrated circuit in electronic, semiconductor and communication industry. The basic principles and processes for preparing high-purity gold by using chemical reduction method, solvent extraction and electrolysis were described in this article, and advantages and disadvantages of different methods were compared to each other. The future developments were also given.
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