The effect of amorphous silica on pulp rheology and copper flotation
Abstract. Amorphous silica is an abundant gangue mineral in ore deposits, but its effect on mineral flotation is unknown. In this study, the effect of amorphous silica on pulp rheology and chalcopyrite flotation was investigated. It was found that the presence of amorphous silica increased the pulp viscosity more significantly than quartz ...
Minerals | Free Full-Text | A New Collector for Effectively Increasing
A new method, staged flotation for effectively increasing the recovery of ultra-fine copper oxide ore with a new type of collector (ZH-1, C3-5 carbon chain xanthate) is proposed for the first time. The flotation process and mechanism were examined by flotation tests, entrainment rate analysis, laser particle size experiments and …
Behavior of talc and mica in copper ore flotation
Talc and mica are major gangue minerals in many base metal ores including sulfide ores. Talc is a naturally hydrophobic mineral, and therefore it is easily floatable. There have been many studies to overcome this problem, and depress talc with various reagents. In this study the flotation of a copper ore in the presence of talc and muscovite was studied. It was …
Control of clay minerals effect in flotation. A review
The presence of clay minerals leads to problems, such as changing the froth stability, which are related to swelling behaviour, increase in pulp viscosity, overconsumption of reagents, slime coating and mechanical entrainment. There is a strong relationship between the rheological properties of pulp and flotation performance.
The Interaction between Cations in Saline Water and Calcium
In the mining industry, the depletion of high-quality ores increases the processing of low-quality ores that contain a high content of clay minerals. It is known that clay minerals have a deleterious effect on the mineral flotation process. However, different clay minerals have different effects on flotation.
Managing clay minerals in froth flotation—A critical …
Clay minerals are widely present in various ore deposits as gangue minerals. The processing of high-clay-content ores is becoming a significant challenge for the mining industry owing to...
Behavior of talc and mica in copper ore flotation
Semantic Scholar extracted view of "Behavior of talc and mica in copper ore flotation" by S. Farrokhpay et al.
Managing clay minerals in froth flotation—A critical …
Read this article. Clay minerals are widely present in various ore deposits as gangue minerals. The processing of high-clay-content ores is becoming a significant challenge for the mining industry owing to the …
Minerals | Free Full-Text | The Prospect of Recovering Vanadium …
Figure 6 shows the vanadium distribution in the mica and clay minerals. The carbonaceous clay minerals were mostly veined and disseminated among the vanadium-bearing mica, feldspar, and quartz. The X-ray spectrum in Table 5 shows that the mass fraction of V in the carbonaceous clay minerals was about 0.5%, and that in the …
Effect of clay crystal structure on froth rheology in flotation
The nature of a clay mineral in aqueous solution is related to its crystal structure. Most clay minerals are phyllosilicates which are made up of silicon‑oxygen …
The different effects of bentonite and kaolin on copper flotation
Effect of clay minerals on copper flotation. The effects of various amounts of bentonite and kaolin on copper flotation are shown in Fig. 2(a) and (b), respectively. Flotation tests were performed with Telfer clean ore as a laboratory baseline in the absence of clay samples. The presence of either bentonite or kaolin affected copper flotation.
Study of Molybdenite Floatability: Effect of Clays and Seawater
Without clays, the mineral was conditioned for 5 min at pH 8 to transfer the suspension to the Hallimond tube. The effect of clays on the natural floatability of MoS 2 was determined by conditioning the mineral with variable amounts of clay for 5 min at pH 8. MoS 2 flotation was for 1 min, using pure N 2 at a 10 mL/min flow.
The Life Cycle of Water Used in Flotation: a Review
In order to mitigate the negative effect of clay minerals (e.g., kaolinite) on copper-bearing minerals such as chalcocite flotation, Zhao and Peng investigated the effects of saline water. The results showed that chalcocite recovery was increased when the electrolyte concentration was increased, probably due to the reduced kaolinite coating on ...
The effect of clay minerals on the process of flotation of copper …
Coal and Potash Flotation Enhancement using a Clay Binder. Abstract The adverse effects of clay particles on coal and mineral processing operations such as …
Response Surface Methodology for Copper Flotation …
minerals Article Response Surface Methodology for Copper Flotation Optimization in Saline Systems María P. Arancibia-Bravo 1,2,*, Freddy A. Lucay 3, Felipe D. Sepúlveda 4, Lorena Cortés 5 and Luís A. Cisternas 5 1 Departamento de Química, Universidad ólica del Norte, Avenida Angamos 0610, Antofagasta 1240000, Chile
The effect of clay minerals on the process of flotation of copper …
The main studies reported to date are systematised and classified in five topics in this paper: i) rheology of clayey pulps; ii) specific reagents for dispersing …
Effect of clay crystal structure on froth rheology in flotation
The nature of a clay mineral in aqueous solution is related to its crystal structure. Most clay minerals are phyllosilicates which are made up of silicon‑oxygen tetrahedrons (T) and aluminum‑oxygen octahedrons (O) in certain proportions [9].Montmorillonite (T-O-T), kaolinite (T-O) and talc (T-O-T) are common clay minerals …
Froth flotation separation of lepidolite ore using a new Gemini
Section snippets Materials. The lepidolite ore used in flotation separation tests was got from Yichun Tantalum & Niobium Mine in China. The mineralogical analysis of the lepidolite ore shows that the main components of the ore were largely 27.83% lepidolite, 34.59% albite, 17.04% quartz, 7.15% sericite, 5.23% potassium feldspar, 5.06% kaolinite, …
Managing clay minerals in froth flotation—A critical review
Copper recovery by true flotation from the flotation of the ore and its mixtures with quartz, clay minerals, and gypsum (Cruz et al. 2015c). Figure 13. Rheograms of clean ore slurries in the ...
Behavior of talc and mica in copper ore flotation
Talc and mica are major gangue minerals in many base metal ores including sulfide ores. Talc is a naturally hydrophobic mineral, and therefore it is easily floatable. …
Challenges and opportunities in the recovery/rejection of trace
Porphyry copper–gold ores contain carbonates and clay minerals (Agorhom et al., 2012b, Allan and Woodcock, 2001, Bulatovic, 1997), which are detrimental to both gold and copper sulphide flotation. Gangue minerals in copper–gold ores have two negative effects on the flotation recovery process;
Effect of clay crystal structure on froth rheology in flotation
Interactions of clay minerals in copper-gold flotation: part 1-rheological properties of clay mineral suspensions in the presence of flotation reagents. Miner. Eng. (2013) ... Behavior of talc and mica in copper ore flotation. Appl. Clay Sci. (2018) B. Ndlovu et al. The effect of phyllosilicate minerals on mineral processing industry. Int. J ...
Gangues and Clays Minerals as Rate-Limiting Factors in Copper …
According to Toro et al. [], copper mining is an industry that is in constant growth, and approximately 25 million tons are produced annually worldwide [].Among the copper minerals on the planet, the vast majority correspond to sulfide ores [].Within these copper minerals, chalcopyrite stands out as the most abundant, representing 70% of all …
Copper Flotation
A Copper Flotation Flowsheet. Because the copper in this type of ore usually assays only plus or minus 1% copper, the porphyry copper operations must be relatively large in order to be commercial. The flowsheet in this study illustrates a typical 3,000 ton per day operation. In general most operations of this type have two or more …
Illite: Mineral information, data and localities.
A variety of Muscovite Illite is a very common mica and clay mineral, typically found as extremely fine-grained masses of grayish-white to silvery-gray, sometimes greenish-gray, material. The literature on "illite" is very large as it is a widespread component of many sediments, especially marine; despite this it is poorly defined and variably considered a …
Clay Minerals | Formation, Properties, Uses, Occurrence
Clay minerals are a group of minerals that are typically found in soils, sediments, and rocks.They are characterized by their small particle size, which is typically less than 2 micrometers, and their high surface area. Some of the most common clay minerals include kaolinite, smectite, illite, and chlorite.. One of the unique properties of …
Minerals | Free Full-Text | The Challenges and Prospects of
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 …
Review Review of the Main Factors Affecting the Flotation of …
Froth flotation is a mineral separation technique used industrially since the late 19th century. ... Dolomite, quartz, clay, calcite, goethite, chlorite, zircon 110 3200 ... carbonatite minerals enriched in copper and iron 1.9 1400 N.A.: Not available. Minerals 2020, 10, 1109 5 of 22 Table 2. Abundant phosphate minerals and their occurrence ...
The different effects of bentonite and kaolin on copper flotation
The objective of this study is to evaluate the deleterious effects of different clay minerals on copper flotation and specify the underpinning mechanism. Swelling bentonite with a 2:1 structure and non-swelling kaolin Q38 with a 1:1 structure, were chosen in this study to represent two typical kinds of clays occurring in industry ore deposits.
Enhancing the flotation recovery of copper minerals in smelter …
Therefore, the scope of the present work involves an investigation into how the flotation recoveries of the copper minerals can be enhanced by studying the mineralogy, milling and liberation profile of the slags and the flotation reagent suite that can be used to optimally recover the copper minerals from the slags. 2. Materials and methods2.1.