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method for processing pyritic concentrate containing gold

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WO2009068735A1 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. Raw material leaching is performed in conditions where the copper, iron and arsenic of the raw material dissolve, but the gold

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method for processing pyritic concentrate containing gold

method for processing pyritic concentrate containing gold For each project scheme design, we will use professional knowledge to help you, carefully listen to your demands, respect your opinions, and use our professional teams and exert our greatest efforts to create a more suitable project scheme for you and realize the project investment value

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Rcovery of gold in pyritic ores Mine Engineer.Com

The most difficult particles to gravity concentrate are the fines, and 75 microns to 2 microns are definitely very fine. So, even if the ore were ground to 2 microns, it may not be recoverable using current gravity technology. That appears to leave froth flotation as still the best method of recovering the gold from pyritic

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Arsenic Pyrite Gold Extraction by Alkaline Leaching Oxidation

Jul 22, 2017· The gold and silver extractions were 90 and 76 pct, respectively, by cyanidation of the leach residue. When the leaching procedure was applied to a concentrate prepared from an ore containing 0.1 tr oz/st Au and 0.1 tr oz/st Ag, the gold extraction

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Early Developments in Treating Pyritic and Refractory Gold

a profound benefit for the processing of pyritic gold ores. It provided a much more efficient method to separate the pyrite into a concentrate that could be selectively

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Gold Pyrite, Pyrrhotite and Arsenopyrite Recovery

Apr 15, 2018· Gold Pyrite, Pyrrhotite and Arsenopyrite Recovery. One of the more common classes of ores containing gold is when gold is associated with pyrite, pyrrhotite, and arsenopyrite. This is the area of gold recovery that has probably received the most research and plant optimization support especially in light of the long history of South African

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Bio-oxidation of Arsenopyritic and Pyritic Containing Gold

Bio-oxidation of Arsenopyritic and Pyritic Containing Gold Ore from Tianli Gold Mine and Process. Corresponding Author Details: Mr. Hongying Yang, School of metallurgy, Northeastern University, Shenyang 110819, Tel: +86-24-83680373, China; E-mail: [email protected] Citation: Auwalu A, Yang H (2018) Bio-oxidation of Arsenopyritic and

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silica processing plant concentrate gold machine

method for processing pyritic concentrate containing gold It has been recognized globally that gold recovery in porphyry copper-gold ore flotation plant processing industry to concentrate Silica sand processing plant;

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(PDF) Recovering gold from copper concentrate via the

Gold is leached at potentials >600 mV vs. Ag/AgCl and recovered from the solution by precipitating it on activated carbon or copper concentrate (Hyvärinen et al. 2004, Haavanlammi et al., 2007b

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Gold processing Mining and concentrating Britannica

Gold processing Gold processing Mining and concentrating: The nature of the ore deposit determines the mining and mineral processing techniques applied. Oxide ore deposits are frequently of such low grade (e.g., 3 to 10 parts per million) that extensive mineral processing cannot economically be justified. In this case they are merely shattered by explosives and then piled into heaps for

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Arsenic Pyrite Gold Extraction by Alkaline Leaching Oxidation

Jul 22, 2017· The gold and silver extractions were 90 and 76 pct, respectively, by cyanidation of the leach residue. When the leaching procedure was applied to a concentrate prepared from an ore containing 0.1 tr oz/st Au and 0.1 tr oz/st Ag, the gold

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Methods of Processing of the Gold-Containing Refractory

Alternative methods of processing the refractory gold-sulfide ores and concentrates were worked out. The gold-containing refractory sulfide ores of chalcopyrite, pyrite, barite-polymetallic, quartzites, copper-zinc, antimonite were used in the research. As a result of investigation, the optimal

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Bio-oxidation of Arsenopyritic and Pyritic Containing Gold

Bio-oxidation of Arsenopyritic and Pyritic Containing Gold Ore from Tianli Gold Mine and Process. Corresponding Author Details: Mr. Hongying Yang, School of metallurgy, Northeastern University, Shenyang 110819, Tel: +86-24-83680373, China; E-mail: [email protected] Citation: Auwalu A, Yang H (2018) Bio-oxidation of Arsenopyritic and

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Production or Refining of Metals, Pretreatment of Raw

method for processing pyritic concentrate containing gold, copper and arsenic 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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silica processing plant concentrate gold machine

method for processing pyritic concentrate containing gold It has been recognized globally that gold recovery in porphyry copper-gold ore flotation plant processing industry to concentrate Silica sand processing plant;

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Method of processing sulphide gold containing concentrates

SUBSTANCE: invention relates to method of processing sulphide gold containing arsenic concentrates. Method involves mixing, annealing, treatment of gas phase and cinder leaching with extraction of gold, silver, nonferrous and rare metals. Batch is prepared by mixing concentrate with ammonium chloride in weight ratio of 1:0.3–1:3.0.

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Refractory Gold Technology

Many gold ores and concentrates contain fine grained gold locked within sulphide minerals, such as pyrite and/or arsenopyrite, unavailable for recovery by conventional leaching. In Sherritt’s gold process, the sulphide and arsenide minerals are completely oxidized by pressure oxidation, thereby liberating the gold.

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gold concentrate silver processing methods new

Method of processing sulphide gold containing concentrates SUBSTANCE: invention relates to method of processing sulphide gold containing arsenic concentrates. Method involves mixing annealing treatment of gas phase and cinder leaching with extraction of gold silver nonferrous and rare metals. method for processing pyritic concentrate

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concentrate gold typical layout

process flow diagram for gold concentrate plant. 9.9/10· Inquire Now; concentrator plant flow chart paralokanestham. gold mining block flow diagram of Ok Tedi porphyry sulphi typical flow diagram of a The stage 1 The iron ore concentrate produced in the process will consist

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Re-Processing Gold Tailings in South Africa

RE-PROCESSING GOLD TAILINGS IN SOUTH AFRICA CHRISTOPHER A. FLEMING, JAMES A. BROWN SGS AND MARIUS BOTHA to recover a rougher pyrite concentrate, and flotation tailings that are discarded. Summary of results from the batch pressure oxidation of Driefontein pyrite concentrate containing gold and uranium

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Processing of refractory gold ores ScienceDirect

Jan 01, 1991· The Mereur ore as well as containing Processing of refractory gold ores 1033 carbon has a significant carbonate content and this allows the process to be operated in the alkaline pH range. the evaluation. In the second stage, the partially roasted calcine is fully oxidized at elevated temperatures. For pyritic concentrates, the roasting is

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PRESSURE OXIDATION OF REFRACTORY GOLD Mineral

Pressure oxidation test work was conducted in North America and in Australia on concentrates containing 2.8 3.8 g/t gold, 100 117 g/t silver, 24 26% iron and 27 29% sulfur. The results of this work and a high level presentation of their impact on engineering outcomes are presented in this paper. ALTA 2014 Gold-PM Proceedings 1

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Chloride–hypochlorite leaching of gold from a mechanically

In this research, effect of mechanical activation on the chloride–hypochlorite leaching of gold from a refractory pyritic concentrate containing ca. 27 g/t gold was investigated for the first time.Results showed that after 30 min leaching, 100% of gold was extracted from a 45 min-milled sample while only 37.2% of gold was obtained from the un-milled sample after 480 min leaching (at 25 °C

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Gold Extraction Process Development ALS

The metallurgical response of gold ores and concentrates to an extraction process is determined by a programme of metallurgical testing and can be conducted via screening methods. For finer particles, i.e. less than 38µm, cyclo-sizing can be conducted with the finer Some refractory ores such as those containing pyritic gold can benefit

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