A process for recovering gold from a gold-containing raw material, comprising leaching the gold-containing material with an aqueous solution comprising elemental bromine and bromide source to form a pregnant leach solution with the gold dissolved therein; separating said pregnant leach solution from the...
SUBSTANCE: method involves gold extraction from the mineral acid solutions by extraction with butyl(phenylethynyl)selenide. Method ensures to extract gold from mineral acid solutions decreasing extractant concentration by 10-fold, time extraction is decreased by 2-fold. Copper, zinc, iron, lead, ...
Method of percolation recovery of silver and gold from ores and dumps FIELD: methods of recovery of silver and gold from sulfide, oxide ores, concentrates and materials of tailing dumps. SUBSTANCE: method includes treatment of initial substances by leaching with aqueous solutions containing ions of ...
This report present a review of recent non-traditional methods of highenergy treatment of resistant gold-containing ores and beneficiation products meant t... VA Chanturiya,IJ Bunin - Isope Ocean Mining Symposium 被引量: 0发表: 2005年 Technology of сoncentration of antimony-mercury gold-containi...
Artisanal small-scale gold mining (ASGM) is a poverty-driven activity practiced in over 70 countries worldwide. Zimbabwe is amongst the top ten countries using large quantities of mercury to extract gold from ore. This analysis was performed to check dat
or mixtures of quartzite and various iron sulfide minerals, particularly pyrite (FeS2) and pyrrhotite (Fe1-xS). When present in sulfide ore bodies, the gold, although still elemental in form, is so finelydisseminatedthat concentration by methods such as those applied to alluvial gold is ...
the ignition temperature of ore was 700 ℃,3.0 mL of potassium bromide(100 g/L) was added into extraction solution and the concentration of aqua regia was 20 %(V/V).Detection limit of this method was 0.03 μg/mL.The proposed method has been applied to the determination of gold in ores...
Cyanide recovery by ion exchange from gold ore waste effluents containing copper The recovery of cyanide from waste effluents of the cyanidation process in gold extraction plants is important environmentally and economically. In this re... BACHILLER,D - 《Minerals Engineering》 被引量: 70发表: 200...
The proposed meteoric water source is typically solely based upon stable isotope data from bulk extraction of fluid inclusions from vein quartz in structurally controlled ore deposits. Such measurements are typically not definitive because they will contain fluid from both ore-related inclusions and many...
The tailings dumps originating from gold mining in South Africa’s Witwatersrand still contain notable gold endowments. Most tailings reprocessing operations target a native gold fraction using re-milling and carbon-in-leach extraction; however, up to 50–70% of the remaining gold is still not reco...