(PDF) Recovery of iron from waste slag of pyrite processing …
Zhang et al. [127] attempted to recover iron from the waste slag of pyrite processing using a reduction roasting magnetic separation method. The iron content of the concentrate was initially 57% ...
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Pyrite | Properties & Facts | Britannica
Historically, pyrite was used commercially as a source of sulfur, particularly for the production of sulfuric acid, but today sulfur is largely collected as a by-product of petroleum processing. Because of the availability of much better sources of iron, pyrite is not generally used as an iron ore .
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Not so foolish after all: 'fool's gold' contains a newly …
Perhaps pyrite still lives up to its historic reputation of "fool's gold" until better, more environmentally sustainable ore processing techniques are developed. Read more: How gold rushes ...
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Extraction of cobalt from a cobaltiferrous pyrite concentrate …
In this study, a cobaltiferrous pyrite concentrate (produced from flotation concentrate of a sulphide copper ore) kindly provided from the Küre (Kastamonu/Türkiye) mineral processing plant of Eti Bakır Co. was used.
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EFFICIENT RECOVERY OF COBALT FROM PYRITE
The new process has two key steps: firstly decomposition of the pyrite to pyrrhotite and elemental sulphur under inert thermal processing; and secondly rapid leaching of the pyrrhotite in a low temperature and pressure oxidation leach. Laboratory testwork has achieved reliable extractions of >95% of the cobalt from the initial pyrite ...
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Pyrite-mediated advanced oxidation processes: …
The typical processing steps are illustrated in Fig. 1 a. In a typical pretreatment process, pyrite ore is ground into fine powders by a ceramic or agate …
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Combined processing of Erdenet Ore-Dressing Plant pyrite …
The production scheme proposed for processing pyrite concentrate (see Fig. 1) includes operations of oxidation firing, sulfuric acid leaching, and two-stage cyaniding with intermediate washing of cakes. The processing products are: rich with respect to content of precious metals, copper-containing sulphate solution, suitable for utilizing by …
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4 Extraction Processes for Gold-Pyrite Ore
1) Air stirring method can improve the flotation index of pyrite and pyrrhotite. For example, in the flotation circuit for processing copper, pyrite and pyrrhotite at a gold concentrator, the copper recovery rate is increased by 4% due to the result of aeration, and the recovery rate of gold in the pyrite and pyrrhotite has increased by 15%.
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Recovery of iron from waste slag of pyrite processing …
Recovery of iron from waste slag of pyrite processing using reduction roasting magnetic separation method G. F. Zhang*1,2, Q. R. Yang1, Y. D. Yang2,P.Wu2 and A. McLean2
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Arsenic-bearing Pyrite: Mineral information, data and localities.
Edit Add Synonym Edit CIF structures Clear Cache. Formula: FeS2. A variety of Pyrite An arsenic-bearing variety of pyrite that may contain up to about 10 at.% of As (Abraitis et al., 2004). Not uncommon; often zoned. Arsenic may be present in different valence states. May contain submicroscopic gold.
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Practical Pyrite Mineral Processing Technology
The pyrite gravity separation process has the advantages of energy saving, high efficiency, environmental protection, small equipment investment, and low operating costs. It has …
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New Technology of Processing Pyrite Concentrate
Processing models for Co, Au, and Ag extraction from pyrites have been previously proposed in the literature [32] [33] [34], and vary from traditional high-temperature (up to 1500 °C) roasting of ...
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New Technology of Processing Pyrite Concentrate
Abstract. There are various technologies for processing pyrite concentrates containing non-ferrous metals, Au, Ag, Cu, etc. Often these technologies have …
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NEW TECHNOLOGY OF COMPLEX PROCESSING OF …
The paper discusses the benefits of processing pyrite concentrates using a new technology that uses roasting in an atmosphere of water vapor. There are various …
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Method of Processing a Pyrite-Containing Slurry
1. A method of removing copper from a low-grade copper-containing material having copper sulfide minerals comprising (a) obtaining a pyrite-containing slurry from a tailings dam or directly from a tailings stream of an ore processing plant; (b) removing pyrite from the pyrite-containing slurry by floating pyrite-containing particles and forming (i) an inert …
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A review of Te and Se systematics in hydrothermal pyrite from …
However, processing of "invisible" structurally bound or nanoparticle Te and Au in pyrite is difficult because Au cannot be recovered by direct cyanidation The ore therefore requires a pre-treatment step including either chemical oxidation, roasting, pressure oxidation or bio-oxidation prior to cyanidation (Spry et al., 2004) and the ...
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Microwave-assisted method investigation for the
Pyrite can be decomposed into Fe 2+ and S 2 2 ... Efficient and low-cost recovery of metals from pyrolusite and Chromite Ore Processing Residue (COPR) is of great significance for environmental protection and sustainable development of metal resources. This study proposes a new method for the simultaneous recovery of Cr and …
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Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical Review
Chalcopyrite and pyrite show recovery of over 90% when working with SBX and MIBC at pH 4–10. An increase in pH to 11.5 allowed lowering the pyrite recovery to 63%. However, when using PCA, pyrite flotation was significantly reduced at pH 4–8, while chalcopyrite was slightly affected, with recoveries over 90%.
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[PDF] Processing of the Pyrite Concentrates to Generate Sulfurous
The results of two-stage roasting of pyrite concentrate with air blowing and the principle scheme of the process are presented in the report. The results of experimental sulfuric acid production tests using pyrite concentrate to generate sulfurous rich gas containing 0.1 – 0.15% of sulphur trioxide are shown. Comparative characteristics with …
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Pyrite Depression in Copper Flotation
The Pyrite Depression in a Copper Only Flotation circuit is simple enough. If your froth flotation system only tries to recover chalcopyrite-copper, you need to bring the plant's pH up to the other side …
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New Technology of Processing Pyrite Concentrate
Tech nological scheme of the water vapor processing of pyrite concentrate. 322. 20 200 300 400 500 600 700 800 900 950 FeS 2 FeS 2, FeS x (1 < x < 2) FeS 2, FeS x (1 < x < 2)
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Recovery of iron from pyrite cinder by suspension …
1. Introduction. When pyrite is used in the production of sulfuric acid, powdered pyrite cinder (PyC) is produced, which is usually small in size and contains some amount of iron [4], [23].The major form of iron in PyC is Fe 2 O 3, and China's PyC iron grade is typically in the range of 30 % to 50 % (J. [13]; Z. [16].PyC also contains harmful …
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Processing of pyrite derived from coal mining waste by …
The material obtained from this pre-processing are herein referred as raw pyrite (P-R). After pre-beneficiation step, the sample proceeded to the density separation process, based on the procedure described in the literature [18 [18] MOUNTENEY, I., The use of lithium heteropolytungstate as an alternative to bromoform for heavy media separations ...
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Method of processing a pyrite-containing slurry
A method of processing a pyrite-containing slurry including removing pyrite from the pyrite-containing slurry and forming (i) an inert stream and (ii) a pyrite-containing material. Using the pyrite-containing material in a downstream leach step in which pyrite in the pyrite-containing material generates acid and heat that facilitates leaching a metal, such …
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Development of Technology for Processing Pyrite Cinder to …
Chlorination is a classic method for processing pyrite cinders that has been introduced in a number of countries [1] [2] [3][4][5]. It should be noted that, in terms of iron content, pyrite ...
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Pyrite Processing | Equipment, Process Flow, Cases
Pyrite processing methods. The pyrite processing mostly in flotation, flowed by the gravity separation process, and gravity-flotation combination. Gravity separation process. For ore with simple ore …
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Practical Pyrite Mineral Processing Technology
The pyrite beneficiation production line has high beneficiation indicators for processing pyrite, but the equipment investment is enormous, and the production cost is low. It is a low-investment and high-return project. The overall operation is smooth during use, without large-scale starting or failure. In particular, the flotation machine has ...
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Recovery of gold from refractory gold ores: Effect of pyrite …
The extraction of gold from refractory gold ores (RGOs) without side reactions is an extremely promising endeavor. However, most RGOs contain large amounts of sulfide, such as pyrite. Thus, investigation of the influence of sulfide on the gold leaching process is important to maximize the utilization of RGOs. In this work, the effects of pyrite on the …
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Catalytic oxidation and kinetics of oxidation of coal-derived pyrite …
When pyrite is electrolyzed, Mn 2+ is oxidized into Mn 3+ at surface of anode at first. Because the Mn 3+ is a strong oxidizing agent, pyrite is easily oxidized into Fe 3+ and SO 4 2−, while Mn 3+ is reduced into Mn 2+.The reduced Mn 2+ can be oxidized into Mn 3+ at the anodic surface again. Therefore, oxidizing reaction of pyrite is carried …
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Rio Tinto Patent: Method of Processing Pyrite-Containing …
Credit: Rio Tinto. A recently filed patent (Publication Number: US20230295768A1) describes a method for processing a pyrite-containing slurry. The method involves removing pyrite from the slurry, resulting in an inert stream and a pyrite-containing material. The pyrite-containing material is then leached with a leach liquor …
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