The leaching behavior of copper and iron recovery from …

DOI: 10.1016/j.jhazmat.2021.126561 Corpus ID: 235808982; The leaching behavior of copper and iron recovery from reduction roasting pyrite cinder. @article{Zhang2021TheLB, title={The leaching behavior of copper and iron recovery from reduction roasting pyrite cinder.}, author={Hanquan Zhang and Guanhua Chen and Xiang Cai and Jintao Fu and …

The Spectra of Pyrite and Its Cinder on Removing Thallium …

The efficiencies of using pyrite and its cinder for the removal of thallium (Tl) from the simulated wastewater were tested. Results showed that the removal efficiencies of thallium exceeded 96%. In addition, reflectance spectroscopy was utilized to study the simulated Tl-containing wastewater treatment process. Results showed that the hydroxyl groups in …

Pyrrhotite and Crumbling Foundation | CMC, Inc.

Pyrrhotite, and its close cousin pyrite are two naturally occurring iron sulfide minerals present in many concrete aggregates that have caused havoc in concrete foundations, dams, houses made using masonry blocks, and …

On the Question of the Complex Processing of Pyrite …

A complex processing variant for pyrite cinders, i.e., the technogenic waste generated in the production of sulfuric acid, was proposed. This method provided preliminary chemical activation of the initial raw materials that comprised thermal treatment with a sodium bicarbonate solution and resulted in structural and phase changes of …

A novel value-added utilization process for pyrite cinder: …

The pyrite cinder used in this study was taken from Tongling, China. The main chemical compositions were shown in Table 1, and the XRD pattern of the sample was presented in Fig. 1.It could be observed from Table 1 and Fig. 1 that hematite (Fe 2 O 3) was the main iron-bearing phase, with an iron content of 60.88 wt%, while the content …

Tongling FuLiu Industrial CO.,LTD

The iron sulfide manufacturer tells you what the sulfur content of pyrite is generally. Tongling sulfur rich mineral products industry and Trade Co., Ltd. is a professional manufacturer of high-grade pyrite, iron sulfide and tin titanium alloy sand. The company has an annual production capacity of 50000 tons of high-purity pyrite.

Effect of Biochar as Reductant on Magnetizing-roasting Behavior …

The effect of biochar substituted for anthracite as reductant on magnetizing-roasting pyrite cinder was investigated. The key of magnetizing-roasting is the gasification reaction between reductants and CO 2.Since biochar could react with CO 2 more rapidly at lower temperature, the reactivity of biochar is better than that of …

Use of Pyrite Cinder as an Iron-Based Oxygen Carrier in Coal …

Selection of low cost oxygen carriers with abundant reserves while being environmentally benign is preferred in the chemical looping combustion (CLC) process. Pyrite cinder is characterized as a waste material and poses potential environmental risk while having issues associated with disposal. In this study, pyrite cinder was utilized as a potential …

A novel value-added utilization process for pyrite cinder: …

Pyrite cinder is a typical hazardous waste produced in sulfuric acid industry, which, however, contains a significant level of valuable metals, such as iron, copper, cobalt, etc. About 12 million tons of pyrite cinder are generated in China annually, while the utilization rate is less than 50% due to the complex relationship of various components.

Catalysts | Free Full-Text | Pyrite Cinder as an Effective …

This research investigates the potential use of pyrite cinder (PC) as an efficient Fenton-like catalyst for the removal of the reactive azo dye Reactive Red 120 (RR120) from aqueous solutions. The characterization of its PC structure and composition confirmed its great potential to act as catalytic iron source in a heterogeneous Fenton …

Chemical composition (wt. %) of the pyrite cinder …

Pyrite cinders, waste products of pyrite concentrate processing by firing to produce sulfuric acid, can serve as raw materials for the extraction of precious, ferrous, and non-ferrous metals.

Efficient removal of thallium(I) from wastewater using flower …

The raw pyrite cinder featured smooth crystals with irregular shapes (Fig. 1 a), while the as-prepared MnO 2 @pyrite cinder was composed of particle clusters with flower-like architecture (Fig. 1 b, Fig. S2).The flower-like structure involved "flower petals" interleaved by thin nanoplates, in which each nanoplate seems to grow perpendicularly …

Performance and mechanism of heterogeneous catalyst …

Tetracycline hydrochloride, which is commonly present in water bodies, lowers human immunity, affects liver function and poses a significant threat to ecosystems. Heterogeneous Fenton can efficiently and thoroughly remove pollutants. Using pyrite cinder as raw material to prepare catalysts has a guiding significance for the utilization …

Performance and mechanism of heterogeneous catalyst …

Pyrite cinder is a powdered waste slag discharged during the production of sulfuric acid from pyrite in the sulfuric acid industry, and its main components are mainly iron oxides and SiO2, which are generally brownish-red in color []. 9 The annual production of pyrite cinder is tremendous in China, which has caused

A Novel Approach for Comprehensive Utilization by Leaching Pyrite …

The pyrite cinder obtained from the sulfuric acid production process by using pyrite concentrate as raw material was leached by titanium dioxide waste acid. The composition of pyrite cinder was dry based total Fe of 61.08%, FeO of 17.22%, Fe 2 O 3 of 68.22%, and a moisture content of 10.74% (wt). The composition of titanium dioxide …

PREPARATION AND RECOVERY OF IRON CARBIDE FROM PYRITE CINDER …

A new technique with carburization followed by magnetic separation is presented for the preparation of high-grade iron carbide from pyrite cinder to promote the high value-added utilization of pyrite cinder. The effects of carburizing temperature, carburizing time and Na 2 SO 4 dosage on carburized pellets were investigated, and the effects of Na 2 SO 4 …

Innovative methodology for the utilization of low-grade pyrite cinder …

1. Introduction. Pyrite cinder (PyC), a form of sulfuric acid residue and waste material generated by sulfuric acid manufacturing plants that exploit pyrite (FeS 2), is rich in iron and contains appreciable quantities of hazardous heavy metals, including Cu, Pb, Zn, As, etc. [1, 2].The release of acids and toxic substances from PyC poses potential …

Separation and Recovery of Copper from Copper-Bearing Pyrite Cinder …

Pyrite cinder is a typical secondary resource produced in the process of producing sulfuric acid. Although it contains abundant Fe, together with some Si, Ca, S, etc., and the copper content in some pyrite cinders even exceeds China's national standard copper industry grade (0.5 wt.%) [].The extraction of valuable metals from pyrite cinder …

Study on Iron Recovery and Desulfurization of Pyrite Cinder

For pyrite cinder of TFe53.51%, S2.20 %, studies showed that good magnetic effect can be achieved at roasting temperature 650-700, reducing atmosphere CO/ (CO + CO2) 10-20% and roasting time 10 ...

(PDF) Potential use of pyrite cinders as raw material in …

The pyrite cinder (or pyrite ash) is a waste product of sulfuric acid production plants, which contains mainly iron oxides at high levels, but also significant levels of hazardous HMs (Zn, Pb, Cu ...

Evaluating solubility of Zn, Pb, Cu and Cd in pyrite …

Pyrite cinder (or pyrite ash), a waste product from the produc-tion of sulfuric acid, is often rich in trace metals such as Zn, Pb, Cu and Cd. There is a risk for excessive exposure of humans and

Mining equipment for Pyrite processing

Home > Applications > Mining. Mining equipment for Pyrite processing. Shanghai shibang provides professional crushing equipment for pyrite crushing including jaw crusher, …

The leaching behavior of copper and iron recovery from …

Pyrite cinder (PyC) is an iron-enriched solid waste material, which is an important iron resource for steel industry. However, the separation or extraction of iron minerals and heavy metals from PyC was ineffective, because of the fine disseminated granularity and the intergrowth between iron minerals and toxic heavy metals during …

Redox performance of pyrite cinder in methane chemical …

In this study, pyrite cinder, a byproduct from the process of sulfuric acid production, was used as an oxygen carrier in CH 4 chemical looping combustion. The purpose of this research is to analyze the redox performance of pyrite cinder in a fixed-bed reactor using 5% CH 4 -95% N 2 as reducing gas. The other two natural Fe-based …

Extraction of Noble Metals from Pyrite Cinders

The most noteworthy chloride-free method for processing pyrite cinders was developed by Outokumpu, and it involves the melting of pyrite concentrates in a neutral atmosphere with the sublimation of sulfur, the …

Preparation and recovery of iron carbide from pyrite cinder …

of iron from pyrite cinder in magnetic separation, beca use the sa turat ion magn etiza tion of F e 3 O 4 (92e mu/g) is m uch lower than that of Fe 3 C

Evaluating solubility of Zn, Pb, Cu and Cd in pyrite …

Production of sulfuric acid by roasting of pyrite (Fe sulfide) produces a Fe rich waste product, pyrite cinder (or pyrite ash), which often contains high levels of trace metals such as Zn and Pb.

Recovery of iron from pyrite cinder by suspension …

Pyrite cinder (PyC) is an iron-enriched tailing.Suspension magnetization roasting(SMR) technology can convert hematite into magnetite, the magnetic properties of the product have been improved, and then through the magnetic separation to complete the separation of magnetite and gangue. SMR consumes less energy than the direct …

Leaching and Kinetic Modeling of Pyrite Cinder in Sulphuric …

Pyrite cinder is the residual of the production of sulphuric acid from pyrite, which mainly contains iron oxide (Fe2O3 and Fe3O4). A great deal of pyrite cinder has been produced in the world. For example, in China the average annual production of pyrite cinder is more than ten million tons. However, pyrite cinder has been rarely used directly as the raw …

Green and short smelting process of bismuth sulphide …

A green and short smelting process of bismuthinite concentrate with pyrite cinder was proposed. • The reaction mechanism and phase transformation laws of Bi 2 S 3 –Fe 2 O 3 –C system was identified.. S in bismuthinite is fixed as FeS to eliminate low concentrate SO 2 gas emission.. The valuable metal distribution behavior was identified …

Recovery of iron from pyrite cinder by suspension …

Pyrite cinder is a typical hazardous waste produced in sulfuric acid industry, which, however, contains a significant level of valuable metals, such as iron, copper, cobalt, etc. About 12 million ...

CN114572954B

The invention provides a method for preparing ferric phosphate by using pyrite cinder, which comprises the steps of forming a mixed material by using crushed pyrite cinder and bagasse powder, carrying out reduction roasting at a specific temperature to obtain pyrite cinder roasting material, carrying out oxidation acid leaching by using concentrated …

(PDF) Potential use of pyrite cinders as raw …

Pyrite cinders, which are the waste products of sulphuric acid manufacturing plants, contain hazardous heavy metals with potential environmental risks for disposal. In this study, the potential...

Chemical composition (wt. %) of the pyrite cinder …

The pyrite cinder (or pyrite ash) is a waste product of sulfuric acid production plants, which contains mainly iron oxides at high levels, but also significant levels of hazardous HMs (Zn, Pb, Cu ...

Concrete Block Crusher for Recycling Rejects | RUBBLE …

RM60 Crusher Industrial Production Waste Cinder block rejects at a manufacturing plant are crushed and screened to 2 finished products. Product 1: 3/8"- (8mm-) Product 2: 3/8" - 1" (8-25 mm) clear stone. Mobile Impact Crushers RUBBLE MASTER offers a large range of mobile Impact Crushers ranging from 90 to 385 TPH. RM 100GO! RM 90GO!

Process Optimization and Reaction Mechanism of Removing …

Pyrite cinder (PyC) is an iron-enriched tailing.Suspension magnetization roasting(SMR) technology can convert hematite into magnetite, the magnetic properties of the product have been improved, and then through the magnetic separation to complete the separation of magnetite and gangue. SMR consumes less energy than the direct …