gold flotation from copper tailings

Recovery of Sulfur, Copper, and Gold by Reprocessing …

The old Bor flotation tailings were disposed of in the Bor River valley from 1933 to 1987 in two tailings ponds covering an area of approximately 1.6km2. The ponds contain 27 million metric tons of tailings with an average range of 0.2-0.3% copper and 0.3-0.6ppm of gold [25]. As part of the RIS-CuRE project [26], a

Flotation of gold and gold-bearing ores

Monothiophosphates are now used widely on copper–gold flotation plants. Mercaptobenzothiazole (MBT, ... Soda ash addition to the flotation tailings provided a pH value of 9.5 prior to conditioning the slurry with xanthate and Terric 402 frother and then floating a sulfide concentrate. The sulfide concentrate was reground before cleaning and ...

Molecules | Free Full-Text | The Development of Innovated

The goal of the present work was to develop hydrometallurgical approaches based on acid leaching for selective extraction of base metals and gold from the sample of old flotation tailings of copper-zinc sulfide ore containing copper, zinc, and gold, as well as to evaluate the application of flotation tailings as a source of oxidant for ...

Potentially Exploitable Reprocessing Routes for Recovering Copper …

Abstract This research aimed at recovering metals retained in the tailings from the flotation of copper (Cu) and cobalt (Co) ores conducted at the New Concentrator in Kipushi (NCK). Metals retention in the tailings (0.73% Cu and 0.37% Co) increased due to the removal of the gravity separation section from the processing circuit together with …

Gold Flotation

In each case the ore was ground to about 70 per cent minus 200 mesh and conditioned at 22 per cent solids with the reagents as indicated. Flotation reagents included reagents 301 and 208 and pine oil. In the second case some soda ash and copper sulphate where also used. GOLD FLOTATION FLOWSHEET

Extraction of Gold and Copper from Flotation Tailings …

Extraction of Gold and Copper from Flotation Tailings Using Glycine-Ammonia Solutions in the Presence of Permanganate. Huan Li, Elsayed Oraby, Jacques …

The Recovery of Gold in Low-Grade Cyanide Tailings by

The resource utilization of cyanide tailings has significant environmental and economic benefits. The efficient recovery of gold from low-grade cyanide tailings containing 1.71 g/t Au was performed by a chlorination roasting–flotation process. The effects of roasting temperature, calcium chloride, internal coke, external coke, copper …

Modified-three-product column (3PC) flotation of copper-gold particles

The flotation of the fresh tailings from the same industrial cir-cuit was also successful in recovering more than 40% of the copper losses and 25% of the gold losses with concentrate grades that ...

Practical Experience in Large-Scale Development of Zijinshan …

The Zijinshan gold-copper mine, in spite of the low-grade nature of the ore, has become one of the largest production-scale and most profitable non-ferrous metal mines in China. The successful application of hydrometallurgy as well as proper engineering design are the key factors for large-scale development of the Zijinshan gold-copper …

1 Froth Flotation – Fundamental Principles

Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product % Weight % Cu Assay Feed 100 2.09 Concentrate 10 20.0 Tailings 90 0.1 (a) From Table 1, the Ratio of Concentration can be calculated as F/C = 100/10 = 10. If only

TAILINGS GOLD RECOVERY BY CYANIDE LEACHING …

day using a flotation concentrator. Gold and silver values not recovered in the copper flotation concentrate report to the tailing storage facilities (TSF). Commonly, flotation tailings contain 0.5-0.7 g/tonne of gold and about 15 g/tonne of silver respectively. However, different methods have been investigated for recovering the values

Socio-Environmental Risks Linked with Mine Tailings …

In the case of copper mine tailings obtained by flotation, it is not mandatory to install geomembrane-type geosynthetic systems on the entire surface of the TSF reservoir. ... (ECA) considered for cases of mine tailings spills, whether copper or gold, in the cases of Chile and Peru . In addition, international maximum permissible …

The Challenges and Prospects of Recovering Fine Copper …

Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are ...

Tailings.info What Are Tailings?

Introduction. Tailings consist of ground rock and process effluents that are generated in a mine processing plant. Mechanical and chemical processes are used to extract the desired product from the run of the mine ore and produce a waste stream known as tailings. This process of product extraction is never efficient, nor is it possible to ...

Selective Process Route to Recover Magnetite from

Magnetite pellet feed recovery from chalcopyrite dam copper flotation tailings. Process route comprises scalping screen, low field rougher, and cleaner magnetic separations and silicates reverse cationic flotation as recleaner step. High-quality magnetite pellet feed reaching 68.00 wt% of Fe, 2.13 wt% of SiO2, and 95.1 wt% of magnetite.

Flotation of Gold and Gold-Bearing Ores

The rougher flotation tailing contained low enough gold values to be pumped directly to the tailings dam. The flotation concentrate was finely ground before cyanide leaching. Separation of arsenopyrite [FeAsS] and pyrite ... The addition of bentonite had a greater detrimental impact on copper and gold flotation recovery and grade, the extent ...

(PDF) Investigation of flotation parameters for …

Dry magnetic separation was subjected to copper flotation tailings to separate ferromagnetic metals (Fe and Ni) from diamagnetic Al particles and the process achieved a recovery of around 99%.

New Insights Into Recovery of Copper and Gold from Old Flotation …

The subject of the research was a sample of pyrite flotation tailings containing copper, 0.26%, zinc, 0.22%, and gold, 0.67 g/t. Investigated was an acid leaching of pyrite tailings under ...

Flotation of Gold and Gold-Bearing Ores

Flotation circuits in commercial gold concentrators are described, along with modern plant practice for various ore types, including refractory gold, arsenopyrite, …

Copper Tailing

As copper tailings appear in ground form, the grading of copper tailings reported by Gupta and Thomas (2013) and Nitish et al. (2013) has a sizeable silt fraction of 0.06–0.002 mm. Copper tailings are considered to be finer than CS, which usually has a dominant sand fraction. Table 6.5 compares the geotechnical properties of copper tailings to …

New approaches for extracting and recovering metals from mine tailings

Mine tailings may contain base transition metals, such as iron, copper, nickel and zinc, in relatively high concentrations, and also occasionally precious metals such as gold and silver, in minerals (and native metals) that have been not been separated by froth flotation (e.g. Bryan et al., 2006, Ahmadi et al., 2015).

(PDF) Copper flotation tailings processing

The subject of the research was a sample of pyrite flotation tailings containing copper, 0.26%, zinc, 0.22%, and gold, 0.67 g/t. Investigated was an acid leaching of pyrite tailings under ...

Old copper flotation tailings waste reprocessing …

The average copper content is 0.3 per cent, gold 0.8 g/t, silver 2.4 g/t and sulphur 12.7 per cent. The flotation tailings pond is located nearby Bor city centre and has great environmental impact.

Gold recovery from flotation concentrate from gold …

The experiments on dissolution of gold in the flotation concentrate from tailings into molten copper was performed using a high-frequency induction furnace consisting of a cooler, a controller and ...

Recovery of Sulfur, Copper, and Gold by …

Flotation. Article PDF Available. Recovery of Sulfur, Copper, and Gold by Reprocessing Old Flotation Tailings at Bor, Serbia. January 2024. Aspects in Mining & …

Biohydrometallurgical treatment of old flotation tailings …

The goal of the work was to study processes of recovery of nonferrous metals and gold from old pyrite flotation tailings of copper-zinc ores. The novelty of the work is an application of a combination of sulfuric acid leaching, leaching with biogenic ferric iron, and biooxidation for separate metal removal from oxidized and sulfidic phases. 2.

A Review of the Cyanidation Treatment of Copper-Gold …

The cyanidation of copper flotation tailings containing sulfides for gold recovery is an example of the formation of cyanide complexes with copper and silver during the leaching process [11,12]. Figure 4 shows the MLA Automated Minerology image of an ore sample from a copper mine in Mexico, containing chalcopyrite and bornite as …

Extraction of Gold and Copper from Flotation Tailings …

copper over gold as cupric glycinate (Cu(Gly)2) from gold–copper concentrate at room temperature and with a pH of 10.5–11. However, as summarized in Figure 2, obvious gold dissolution could also be realized using gold-foils at a higher glycine concentration, pH and temperature, or if additional oxidant was added [12–14].

Implementation of regrind–flotation pre-treatment of the …

In copper–gold flotation tailings, the association of gold with iron sulphide gangue is often in the form of total or partial encapsulation of fine gold grains. The encapsulation impedes access of cyanide to gold, reducing the effectiveness of subsequent CIL circuits in copper–gold plants.

TAILINGS GOLD RECOVERY BY CYANIDE LEACHING …

Gold and silver values not recovered in the copper flotation concentrate report to the tailing storage facilities (TSF). Commonly, flotation tailings contain 0.5-0.7 g/tonne of …