Properties of Gold-Bearing Humic Acids

The test of gold-bearing humic substances aimed to find forms of gold in them. The test results enable estimation of gold compound mobility during sedimentation of humic acids. Re-sedimentation of humic acids shows similar properties of gold after dissolving with and without a selective dissolver. T...

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Bibliographic Details
Published inJournal of mining science Vol. 59; no. 2; pp. 311 - 319
Main Authors Zashikhin, A. V., Suvorova, O. N.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.04.2023
Springer
Springer Nature B.V
Subjects
Amino acids
Ammonium
Ammonium compounds
Ammonium hydroxide
Analysis
Dissolvers
Earth and Environmental Science
Earth Sciences
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Gold
Gold compounds
Humic acid
Humic acids
Humic substances
Hydroxides
Mineral Dressing
Mineral Resources
Organic compounds
Sedimentation
amino-acid analysis
gold-bearing humic substances
preg-robbing
re-sedimentation of gold-bearing humic acids
spin
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Summary:The test of gold-bearing humic substances aimed to find forms of gold in them. The test results enable estimation of gold compound mobility during sedimentation of humic acids. Re-sedimentation of humic acids shows similar properties of gold after dissolving with and without a selective dissolver. The amino-acid analysis of humic acids before and after their interaction with ammonium hydroxide reveals the increased content of amino acids capable to dissolve gold. Stage-wise spin of gold-bearing liquid humic acids at acceleration from 4000g to 233000g and at pH of 11 nullifies gold-bearing particles in solutions and makes the latter homogenous. The authors describe the impact of destructive effects relative to organic compounds on joint sedimentation of gold and humic acids.
ISSN:1062-7391
1573-8736
DOI:10.1134/S106273912302014X