Экспериментальное исследование закономерностей электрохимической сорбции/десорбции ионов золота (III) (original) (raw)

2021

Abstract

For the Republic of Kazakhstan as a country with developed mining and processing sectors, a topical issue is to develop the areas of knowledge aimed at improving and refining methods and technologies for comprehensive mineral processing including for the more complete extraction of precious metals. The necessity of these studies is determined by the high loss of precious metals during their processing and separation and the need to improve the process of their concentration. Advances in the field of carbon nanomaterials offer great prospects for improving existing technologies for the precious metal extraction from waste solutions and pulps. This paper covers the comprehensive studies into the influence of the solution flow rates, pH and the presence of ions of other metals on the extraction of gold on a carbon nanostructured material consisting of rice husk with its further regeneration and reuse. It was found that the highest gold (III) ion recovery is observed at pH ~ 2. The gold...

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