ALTA Gold 2012 E Doc Glencore Technology
Flotation test work on high throughput Ore B indicated that gold can also be concentrated to an extent by concentrating the sulphide component in the ore to mass pulls of
Flotation test work on high throughput Ore B indicated that gold can also be concentrated to an extent by concentrating the sulphide component in the ore to mass pulls of
Sulfide gold ore refers to a type of geological deposit in which gold is locked within metal sulfide minerals These ores typically have complex compositions containing not
Cyanide consumption was kg NaCN per metric ton of ore A flowsheet for treating sulfidic low grade gold ore is proposed During the 1980 s the gold industry saw strong
The ability of a sulphide ore to adsorb Au CN 2 − from solution was found to be a function of how rapidly the ore consumed cyanide and precipitated metal cyanide
Since the sulfide minerals are to some extent soluble in cyanide solutions there will always be some sulfur species present in the leach solution It has been shown that soluble
of refractory gold minerals and locking of submicroscopic gold in sulfide mineral structure etc Gold process mineralogy helps address issues and problems related to gold ore
The gold in the sulfide ores is finely dispersed and locked up in sulfide minerals with other precious metal associations leading to the loss of these components in tailings from traditional
Gold and silver are commodities which occur in many types of hydrothermal ore deposits and geological contexts Zhu et al 2011 The mineralogy of gold and silver is variable
To extract gold from refractory sulfide ores the ore needs to be finely ground and preoxidation is often required Sulfide host minerals must first be oxidised to create a porous structure through
Bulk flotation tests were directed at maximizing gold recovery in a bulk sulphide concentrate The effects of fineness of grind collector addition activator and flotation time
Pressure oxidation is a widely accepted method to treat refractory gold ores Gold recovery is generally lower from alkaline than acidic pressure oxidation discharge due to
Hypochlorite leaching system is a strong oxidizing solution for metal sulfides which are naturally associated with gold extraction This study evaluated the hypochlorite
Case 4 A bromine solution was used to dissolve gold from sulphide ore and an oxidised ore Melashvili et al 2014 Leaching solution The optimised leaching solution was
The ore from Barrick s Goldstrike mine NV USA is the gold ore with double refractoriness containing sulfide and carbonaceous matter In the plant the mined refractory
sulphide/oxide copper gold vein deposit Until June 2009 the sulphide and oxide minerals were respectively recovered by the well established xanthate flotation of sulphides
The acid wash did not dissolve any gold showing that no adsorbed gold complexes were present on the mineral surfaces in the sulphide ore A gold recovery of 91%
The clean production process for extracting antimony from refractory gold ore involves sodium sulfide leaching pressure oxidation concentration and crystallization steps
In this study the flotation behaviors of gold and gold associated sulfide minerals pyrite and sphalerite in a polymetallic sulfide gold ore were investigated using flotation
Nitric acid was also beneficial for the recovery of gold above about 400 g/L 906 S M Bulatovic 60 [3 Gold ore from Nevada 50 0 Gold ore from Indonesia 40 30 20 0 10 o
