Post-regrind selective depression of pyrite in pyritic copper–gold
As a consequence, most flotation circuits processing complex sulphide ores, containing pyrite, use regrinding (to liberate pyrite, gold and chalcopyrite) and depression strategies such as aeration, cyanide, sulphite, high pH (pH > 10), etc., to minimise pyrite flotation during cleaner stages.
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WO/2009/068735 METHOD FOR PROCESSING PYRITIC CONCENTRATE CONTAINING
The invention relates to a method for processing pyritic copper sulphide concentrate, in which, in addition to copper, there is arsenic and gold bound to the sulphide minerals, or invisible gold. In the method concentrate is leached into a chloride-containing solution. Raw material leaching is performed in conditions where the copper, iron and ...
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METHOD FOR PROCESSING PYRITIC CONCENTRATE CONTAINING GOLD, COPPER …
The invention relates to a method for processing pyritic copper sulphide concentrate, in which, in addition to copper, there is arsenic and gold bound to the sulphide minerals, or invisible gold. In the method concentrate is leached into a chloride-containing solution.
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(PDF) Nitric Acid Leaching for Pre-Treatment of a Copper …
The extraction of gold/silver from a copper-bearing pyritic gold concentrate (62 g/t Au, 110 g/t Ag and 0.3% Cu) in thiosulphate solutions was investigated in this study. ... method to cyanide ...
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WO/2009/068735 METHOD FOR PROCESSING PYRITIC …
The invention relates to a method for processing pyritic copper sulphide concentrate, in which, in addition to copper, there is arsenic and gold bound to the sulphide minerals, or invisible gold. …
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Complex Processing of Refractory Pyrite Copper, Copper …
The high content of tennantite helps to concentrate an arsenic up to 1% in copper concentrate, which complicates the technology of its pyrometallurgical processing; it requires …
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RECOVERY OF SILVER FROM CYANIDE LEACH SOLUTIONS OF A PYRITIC GOLD
This solution was produced by cyanide leaching of a pyritic gold concentrate (62 g/t) containing high levels of silver (110 g/t) (3 g/L NaCN, pH 10.5-11, %35 w/w, 20°C, 24 h and 10 L).
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Developing the technology of associated gold recovery …
Research objective is to address an up to date task of developing the technology of associated gold recovery from complex ore. Object of research is the gold-bearing copper-pyrite ore....
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BRPI0819618A2
BRPI0819618A2 - Method for processing pyrite concentrate containing gold, copper and arsenic - Google Patents Method for processing pyrite concentrate containing gold, copper and arsenic ... copper concentrate containing containing gold pyrite concentrate Prior art date Application number Other languages Portuguese (pt) Inventor
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METHOD FOR PROCESSING PYRITIC CONCENTRATE …
The invention relates to a method for processing pyritic copper sulphide concentrate, in which, in addition to copper, there is arsenic and gold bound to the sulphide minerals, or invisible gold. In the method concentrate is leached into a chloride-containing solution.
WhatsApp: +86 18221755073
Developing the technology of associated gold recovery when
Research objective is to address an up to date task of developing the technology of associated gold recovery from complex ore. Object of research is the gold-bearing copper …
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Sequential Bioleaching of Pyritic Tailings and …
In this work, we proposed a method for biohydrometallurgical processing of mining (old pyritic flotation tailings) and metallurgical (slag) wastes to recover gold and other nonferrous metals.
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CA2530355C
The invention relates to a method for processing sulfide ores containing precious metals, such as copper ores containing nickel. According to the method, the ore or concentrate (1) containing the precious metals is leached (2), and the iron contained in the solution is neutralized in oxidizing conditions by means of a ferrous recirculation solution (6) recirculated to the leach.
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Arsenopyrite Gold Recovery
It is a common practice in processing pyritic gold ores to remove as much gold and sulfide as possible by gravity treatment and/or flotation. Classically, the arsenopyrite concentrate is contacted with mercury to recover the free gold contents.
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Thiosulphate Leaching of Gold/Silver from a Copper-Bearing Pyritic Gold …
The extraction of gold/silver from a copper-bearing pyritic gold concentrate (62 g/t Au, 110 g/t Ag and 0.3% Cu) in thiosulphate solutions was investigated in this study. ... refractory gold ores ...
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CN1823171A
The copper mine stone that contains at present nickel by flotation processing, so as directly and selectivity produce independently copper and mickel concentrate, perhaps produce nickel ore concentrate by suppressing (depress) bonded copper-nickel ore concentrate then.Be included in the precious metal in the raw material, for example gold, platinum separate in the further …
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Post-regrind selective depression of pyrite in pyritic …
As a consequence, most flotation circuits processing complex sulphide ores, containing pyrite, use regrinding (to liberate pyrite, gold and chalcopyrite) and depression …
WhatsApp: +86 18221755073
WO/2009/068735 METHOD FOR PROCESSING PYRITIC CONCENTRATE CONTAINING
The invention relates to a method for processing pyritic copper sulphide concentrate, in which, in addition to copper, there is arsenic and gold bound to the sulphide minerals, or invisible gold. In the method concentrate is leached into a chloride-containing solution.
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Early Developments in Treating Pyritic and Refractory Gold …
In the late nineteenth century new techniques were developed in Australia to extract gold locked in pyrite in refractory gold ores. Developments were made at a number of gold mining centres ...
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Sequential Bioleaching of Pyritic Tailings and Ferric …
A previously proposed hydrometallurgical processing method involves treating copper converter ... of mining and metallurgical wastes containing gold and other nonferrous metals. The economic ... Element Pyritic Tailings Copper Slags Copper–Nickel Slags Fe …
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Flotation behaviour of gold during processing of porphyry copper-gold
Gold-pyrite middlings can be selectively concentrated with appropriate flowsheet adjustments and selectivity-assisting agents. Successful concentration of gold in refractory sulphide ores [6,7,81 is almost exclusively dependent …
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Flotation behaviour of gold during processing of porphyry …
Gold-pyrite middlings can be selectively concentrated with appropriate flowsheet adjustments and selectivity-assisting agents. Successful concentration of gold in refractory …
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CA2706414C
C22B3/06 — Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
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Optimisation of gold recovery by selective gold flotation for copper
The aim of the testwork was to optimise the free gold recovery by; (1) enhancing the copper and gold recovery into a copper concentrate and (2) floating the gold away from the copper sulphides and pyrite.
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Complex Processing of Refractory Pyrite Copper, Copper …
The high content of tennantite helps to concentrate an arsenic up to 1% in copper concentrate, which complicates the technology of its pyrometallurgical processing; it requires the disposal of arsenic from waste gases.
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sbm/sbm method for processing pyritic concentrate …
Contribute to dihog/sbm development by creating an account on GitHub.
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Process Options for Copper and Gold Recovery from a Bulk …
One of the possible routes for processing involves flotation of a bulk copper-gold concentrate followed by treatment by an atmospheric leach/SX-EW process for copper recovery. The atmospheric leach residue would then be leached for recovery of gold and silver.
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Arsenopyrite Gold Recovery
It is a common practice in processing pyritic gold ores to remove as much gold and sulfide as possible by gravity treatment and/or flotation. Classically, the arsenopyrite concentrate is contacted with mercury to recover …
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Post-regrind selective depression of pyrite in pyritic copper–gold
Clearly, there is a significant increase in the recombined concentrate grades for gold and copper without a large detrimental effect on copper recoveries (only 2% decrease compared with combining copper and pyrite rougher concentrates) (Agorhom et al., 2013). Gold recoveries dropped by 20% due to significant pyrite depression, lower flotation ...
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Facile and novel method for the recovery of gold from a …
Gold, a noble and precious metal, plays a pivotal role in international financial reserves and finds widespread applications in electronics, communication, aerospace, chemicals, and medical treatments due to its unique physicochemical properties (Gorin and Toste, 2007; Saha et al., 2011).Presently, gold is primarily sourced from gold concentrates, and the …
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