DOI: 10.1080/00084433.2024.2380577 Corpus ID: 271439966; Linking ores flotation results to the Kinsenda copper deposit mineralogical features: enhancing the recovery of copper retained in flotation tailings
The purpose of this study is to identify the physical, mineralogical, and electrochemical properties of copper flotation tailings as well as to investigate how polymer type, dose, suspension pH, and mixing circumstances affect flocculation.
This finding is illustrated in Figure 1, which shows the flotation response of copper ore as a function of particle size using conventional flotation techniques. This finding has been confirmed through ... To further demonstrate the effectiveness of the HydroFloatTM separator for recovering lost copper values from tailings, a 5 tonne/hr pilot ...
difficult recovery. In summary, the refractory copper oxide proportion of the flotation tailings is high, meaning that conventional flotation cannot recycle copper minerals thoroughly. Instead, the flotation tailings are extracted using concentrated sulfuric acid under high temperature conditions [13,14]. Table 1.
This study investigated leaching of metals i.e. Cu, Co and Zn from flotation tailings of a copper smelter slag using sulphuric acid solutions in the absence/presence of hydrogen peroxide.
2. 2. Flotation Procedure All the flotation test-work was done using the Denver laboratory machine with a 1.5l stainless steel flotation cell. The required mass of nickel-copper sulphide ore material ground to 70% passing 75 µm was weighed and placed in the flotation cell. This was followed by the addition of distilled water to about
It is estimated that the old flotation tailings of the Copper Mine Bor, used from 1933 to 1987, contains about 27×106 tons of tailings with an average copper content in the range 0.2–0.3 wt. %, a gold content of 0.3–0.6 g t–1 and a silver content of 2.5–3 g t–1.2–6 Hence, the best estimate of the total copper content in the old ...
The main technology to obtain concentrates of valuable metals such as copper and thus generate mining tailings (residues) from the processing of sulphide minerals on an industrial scale (more than 100,000 metric tons per day) is froth flotation. Tailings are a residue of the froth flotation mining–metallurgical process, usually a very …
In this study, an efficient method of Cu extraction by reprocessing molybdenite flotation tailings was achieved using flotation methods. Based on the …
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 separated as tailings. However, a significant amount of copper is lost into tailings during the processing; therefore, tailings can be considered …
produced by flotation (International Copper Study Group, 2012). In 2011, about 60 percent of primary copper produced in the United States originated from flotation (Daniel E. Edelstein, Copper Commodity Specialist, U.S. Geological Survey, …
In this study the effect of mixtures of copper slag and flotation tailings from copper mine Bor, Serbia on the flotation results of copper recovery and flotation kinetics parameters in a batch ...
This means that 95.7% of the copper present in the ore was recovered in the concentrate, while the rest was lost in the tailings. (c) The % Cu Loss can be calculated by subtracting the % Cu Recovery from : % Cu Loss = 100 – 95.7 = 4.3% This means that 4.3% of the copper present in the ore was lost in the tailings.
A new flotation tailings treatment process was developed for efficient Cu recovery. • An efficient Cu dissolution was achieved in an H 2 O media in presence of pyrite.. The dissolution mechanism of CuFeS 2 has been confirmed to be a multistage reaction.. Fe was always co-dissolved with Cu following a linear relation of C Fe = …
Since the Kinsenda concentrator commissioning in 2015, the selective flotation of mixed copper ores (67% as sulphides and 39% as oxides) from the …
Thin-layer heap bioleaching of copper flotation tailings containing high levels of fine grains was carried out by mixed cultures on a small scale over a period of 210 d. Lump ores as a framework were loaded at the bottom of the ore heap. The overall copper leaching rates of tailings and lump ores were 57.10wt% and 65.52wt%, …
This paper presents a review of chemical composition data of the main stages of copper production from sulfide minerals, such as (1) copper minerals, (2) flotation tailings, (3) flotation ...
The laboratory graduated cylinder and jar test methods are commonly used to evaluate the effectiveness of polymers in improving suspension settling rate and flocculation performance.
These results show that froth flotation, carried out with the appropriate reagents, is a successful method for recovering Co by enriching the flotation plant tailings.
A new flotation tailings treatment process was developed for efficient Cu recovery.. An efficient Cu dissolution was achieved in an H 2 O media in presence of pyrite.. The dissolution mechanism of CuFeS 2 has been confirmed to be a multistage reaction.. Fe was always co-dissolved with Cu following a linear relation of C Fe = 38.393 × C Cu.. …
Bioleaching of samples taken from depths of 10, 15, and 20 m from old flotation tailings of the Copper Mine Bor was conducted in shaken flasks using the extremely acidic water of Lake Robule as ...
The obtained Cu-concentrate is sent to the pyrometallurgical process. If grinding is not fine enough for efficient flotation, copper is lost in tailings. In this paper, the ferric leaching of slag flotation tailings is studied. Copper extractions of 66% are achieved by ferric leaching, and Cu content in tailings is reduced from 0.78% to 0.24%.
Copper froth flotation tailings containing 1.19 and 0.97 wt% total and acid-soluble copper, respectively, from Chibuluma mines in the Copperbelt province of Zambia were characterized by SEM and XRD techniques. The major phases in the feed material were malachite,...
Minerals 2022, 12, 612 3 of 12 ores. The study showed that 85.1% of gold was dissolved into leachate from different ores by leaching with glycine (1.5 kg/t) and potassium permanganate (3 kg/t) for ...
This work aimed to investigate optimal leaching technology for copper extraction from old flotation tailings of the Copper Mine Bor. The leaching degree of copper after leaching with sulphuric acid at 80 °C was 50%, the maximal leaching degree was …
of gold enterprises because of tailings storage facilities.6 What is more, these tailings contain valuable minerals, such as zinc, lead, copper and sulfide minerals. For example, cyanidation tailings from Gaoyao Hetai Gold Plant (Guangdong Pro-vince, China) contains 2.5% Cu, 0.31% Pb, 0.23% Zn and 15.36% Fe12 and that from Tianshui Gold Plant
Response surface methodology is used to optimize the leaching process for refractory flotation copper tailings. The proportion of the refractory combination oxide copper (chrysocolla) is 64.84%. At present, few studies have examined the leaching of chrysocolla. In this study, we examine the effects of several variables, including the …
Copper ore mining and processing release hazardous post-flotation wastes that are difficult for remediation. The studied tailings were extremely rich in Cu (1800 mg kg-1) and contaminated with Co and Mn, and contained very little available forms of P, Fe, and Zn.The plants growing in tailings were distinctly enriched in Cu, Cd, Co, Ni, and Pb, and the …
In this study, a hydrometallurgical method for the recovery of copper, cobalt, and zinc from copper slag flotation tailings (SFT) was investigated. SFT contains large amounts of valuable metallic compounds, such as copper, cobalt, and zinc. A representative SFT sample containing 0.50% Cu, 0.148% Co, 3.93% Zn, and 39.50% Fe was used in …
An efficient copper recovery process (total copper recovery of 86.2%) is proposed for the utilization of concentrate of flotation tailings as one of the new copper …
Bioleaching of samples taken from depths of 10, 15, and 20 meters from old flotation tailings of the Copper Mine Bor was conducted in shaken flasks using extremely acidic water of Lake Robuleas … Expand. 15. PDF. Save. Recovery of Copper from a Waste Heat Boiler Dust Leach Liquor using LIX 84I and LIX 622N.
The possibility of selective Cu and Zn leaching from the sample of old pyrite tailings, which is one of the most widespread types of solid waste forming during non-ferrous metal production, using sulfuric acid solutions and water was studied. It was shown that water leaching provided selective extraction of Cu and Zn and comparatively low …
