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. …
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 …
The invention relates to a method for recovering gold in connection with the hydrometallurgical production of copper from a waste or intermediate product containing sulphur and iron that is generated in the leaching of the copper raw material. The recovery of both copper and gold occurs in a chloride environment. The gold contained in the waste or intermediate is leached …
A technology for harmless treatment and sulfuric acid slag, which is applied in the field of mineral processing and metallurgy, can solve the problems of ring formation, sintering, inability to recover gold and silver, and affect the quality of iron red in roasting equipment, so as to improve the strength of the furnace and reduce the pulverization. And knot ring, to ensure the effect of ...
method for processing pyritic concentrate containing gold; ... sulfuric acid and hydrochloric acid in concentration from 10-30% are used in order to break down zinc chips in processing of gold slime and may give off hydrogen cyanide and arsine. These operations must be performed in specially ... including 51.73 g/t gold over 1.85 m (WB 22-66 ...
PT70597A - PROCESS FOR OBTAINING NON-FERROUS METALS FROM MINOR COMPLEX PYRITIC-BASED SULFIDES CONTAINING COPPER LEAD ZINC SILVER AND GOLD - Google Patents ... pyritic gold containing copper ferrous metals copper lead Prior art date Application number PT70597A Other languages French (fr) Portuguese (pt)
Potential exists for this process to form the basis for an economically viable, environmentally friendly process for the treatment of refractory pyritic gold ores. Read more Conference Paper
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 ...
gold. The use of one or another method of processing antimony-containing ores and concentrates depends on the antimony content in them and its form of location (Table 1). Antimony metallurgy is intended for the production of metallic antimony by pyrometallurgical and hydrometallurgical methods. Types of raw materials Expedient processing methods
The invention relates to a method for recovering gold in connection with the hydrometallurgical production of copper from a waste or intermediate product containing sulphur and iron that is generated in the leaching of the copper raw material. The recovery of both copper and gold occurs in a chloride environment. The gold contained in the waste or intermediate is leached …
The present invention relates to a process for chemical extraction of gold and silver from low grade and refractory pyritic concentrates containing minimum 1 ppm Au, by their leaching in enamelled cast iron reactors, steel plated lead or plastic coated steel, at room temperature, in ammoniac solutions (pH 8-10) of sodium thiosulfate (50-60 g/l Na2S203• 5 H2O) with a …
WO2005007905A1 - Method for smelting copper concentrates - Google Patents Method for smelting copper concentrates Download PDF Info Publication number ... copper slag smelting sulfide leaching Prior art date Application number PCT/FI2004/000450 Other languages English (en) Finnish (fi)
FIELD: production of noble metals. SUBSTANCE: method for extraction of noble metals from lean pyritic complex ores consists in leaching of lean pyritic complex ores with chlorine-containing compounds - potassium chlorate in acid medium at potassium chlorate-hydrochloric acid ratio of 0.8:5.0. EFFECT: higher efficiency. 1 tbl
the present invention refers to a method for processing a pyrite copper sulfide concentrate containing gold and / or platinum group metals (pgm) and arsenic, where the concentrate is leached in a aqueous copper chlorine solution alkaline containing hydrochloric acid and sulfur remains in the residue formed in the leaching, where the redox potential of the concentrate …
METHOD FOR HYDROMETALURIC TREATMENT OF SULPHIDE CONCENTRATE CONTAINING SEVERAL VALUABLE METALS. The present invention relates to a method in which valuable metals contained in a sulfidic concentrate, multi-component concentrates, are recovered using hydrometallurgical treatment. One constituent of the concentrate is copper …
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.
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.
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
The technical problem to be solved consists of the impossibility of the industry to recover copper from sulphide minerals contained both in the rock coming from the mine, as well as in the copper-molybdenum concentrates coming from the concentrator plants, thus resorting to methods pollutants to carry out the process. In order to solve this, a leaching solution was developed …
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.
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 …
Handling complex and mixed ore containing gold and copper particularly in economically constrained-concentrates production plan, it is advisable to target the two metals at the same time using a ...
FIELD: technological processes. 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.
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.
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.
ma18676a1 - process for obtaining non-ferrous metals from complex pyritic sulfide minerals containing copper, lead, zinc, silver and gold - google patents
US3969107A US05/583,828 US58382875A US3969107A US 3969107 A US3969107 A US 3969107A US 58382875 A US58382875 A US 58382875A US 3969107 A US3969107 A US 3969107A Authority US United States Prior art keywords residue leaching stage concentrate precious metal Prior art date Legal status (The legal status is an assumption and …
The pyritic copper–gold ore used in this study was obtained from a copper–gold mine in Asia. The pyrite rougher concentrate was obtained by two-stage copper and pyrite rougher flotation using the conditions in Table 1 and reported in Agorhom et al. (2013).However, in the present studies, the focus is to examine flotation depression of pyrite after regrinding the …
Minerals. Porphyry copper deposits are important sources of copper and typically processed by flotation to produce copper concentrates. As mining areas become deeper, the amounts of impurities, such as sphalerite, can be increased in copper ores, so the appropriate depression of sphalerite floatability should be achieved to obtain saleable copper concentrates.
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A novel hydrometallurgical process for efficient treatment of cyanidation effluents obtained by leaching high copper gold ores (or concentrates) based on the use of Cherokee Chemical organo-sulfur ...
Currently, the cyanide method is used for gold production in the world's 60 largest gold-producing areas and 23 renowned gold companies, accounting for > 84% of their total …
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. ... efficient cyanidation-carbon adsorption procedure for recovering gold and silver from select arsenopyrite concentrates. The proposed method circumvents the problem of arsenic and sulfur emissions and ...
The optimal parameters of gold-containing pyritic product of non-ferrous metals were defined for hydrometallurgical technology development. ... new processing schemes including flotation and cyanidation of calcined pyrite products separated in different cycles of processing were developed and recommended.This work was carried out with the ...
This gold mining operation uses three stages (crushing, heap-leaching cyanidation with adsorption and desorption in activated carbon, and electrolytic deposition) to extract gold …
FIELD: hydrometallurgy. SUBSTANCE: invention relates to the hydrometallurgy of non-ferrous metals for the processing of sulfide antimony gold-containing concentrates. The method includes sulfide-alkaline leaching of the concentrate, which is carried out in two stages in a countercurrent mode. The first stage of leaching is carried out with a lack of 40-90% in the …
On average, the process plant will produce about 600 000 t/y of copper/gold concentrate containing an estimated 287-million pounds of copper, 321 000 oz of gold and …
the concentrated of the ore containing high grade gold and silver, and determined using a gravimetric method. The cupel loss is a container that is used to process gold cupellation process, so when gold be merged on the cupel so the container named as cupel loss and analyzed using AAS. The determination of gold by re assay
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.
