Abstract
The purpose of this study was to recover gold from invisible concentrate using microwave-nitric acid leaching and filter paper. A microwave nitric acid leaching experiment was conducted to liberate gold from invisible gold concentrate (Au = 1,765.50 g/t) using different concentrations of nitric acid. Gold was not detected in the analyzed leaching solution (1 M–6 M). This indicates that the gold was not dissolved in the nitric acid solution and was present as a solid phase in the leaching solution. This solution was filtrated using filter paper that was then used for a lead-fire assay. Using this assay, gold was discovered on all the utilized filter paper: 2,361.60 g/t and 7,355.50 g/t from the 1st paper; 31.36 g/t and 673.81 g/t from the 2nd paper and 20.69 g/t and 190.91 g/t from the 3rd paper. It was confirmed that invisible gold was present as a solid phase in the leaching solution.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Korean Society of Mineral and Energy Resources Engineers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
