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A new analysis method of gold in sulfate leaching solution is introduced in this paper. Hydrochloric acid is added into solution to decompose thiosulfate for quickly and effectively undermining the gold thiosulfate complex. In the medium of aqua fortis, gold is adsorbed and separated by mercapto group resin. After elution, isoamyl alcohol is used as extractant to enrich and separate Au3+ from solution...
The low coverage adsorption of CN- ions on Ag and Au have been studied by means of density functional theory and cluster model. Geometry and adsorption energy of one- and two-coordination associations of cyanide with surface silver and gold atoms have been computed. It was founded on the base of comparison of surface configuration energies that the part of surface gold atoms on which is adsorbed two...
As shown by quartz-crystal microbalance measurements, in the potential range from 0.0 to 0.55 V (NHE) sulfide ions adsorbed on the gold electrode surface accelerate the electrode reaction of anodic dissolution of gold in acidic thiocarbamide solutions. The microbalance determination of kinetic parameters at a constant electrode surface coverage with sulfide ions includes a special procedure developed...
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