Microwave Technology for iron ore Reduction

Microwave Technology For Iron Ore Reduction

microwave technology for iron ore reduction

the high temperature microwave iron ore reduction equipment can be widely used for the high temperature reduction of iron ore,iron ore powdery, red iron ore,brown iron ore,ilmenite,etc.With 10 years history,Yantai Care Microwave System Co., Ltd

Carbothermal Reduction of Iron Ore Applying Microwave ...

This stone presents the results of a study on carbothermal reduction of iron ore made under the microwave field in equipment specially developed for this purpose. The equipment allows the control of radiated and reflected microwave power, and therefore measures the microwave energy actually applied to the load in the reduction process.

REDUCTION OF IRON ORE BY CHARCOAL UNDER …

Reduction Of Iron Ore By Charcoal Under Microwave Irradiation 44 Reducing agent used in this research was charcoal which has fixed carbon content approximately 89.81% and the small amount of sulfur. Charcoal was mashed into microscopics scale up to 100 mesh in size using Ball Milling (Retsch PM-400 MA type). B. Reduction Process

GHANA JOURNAL OF TECHNOLOGY - umat.edu.gh

The microwave technology was used for the reduction process. Composite pellets composed of the iron ore, reducing agents of different blends and stone (binder) were formed and subjected to a 2400 MW, 50 Hz microwave for firing. Each pellet was fired for forty minutes.

Preparation of core-shell iron ore-biochar composite ...

Along with the use of biochar in producing the metallized pellets, microwave as a clean energy has been applied for pellets reduction [25,26] as iron ore and carbon are both strong microwave absorbers . Due to its long wavelength and dependence on material properties (microwave permittivity and permeability), microwave energy can heat the material volumetrically and selectively.

Beneficiation studies of a difficult to treat iron ore ...

Powder Technology. Volume 301, November 2016, Pages 1016-1024. Beneficiation studies of a difficult to treat iron ore using conventional and microwave roasting. Author links open overlay panel Swagat S. Rath a Nikhil Dhawan b D.S. Rao a B. Das a B.K. Mishra ...

Microwaves Applied to Carbothermic Reduction of Iron Ore ...

May 09, 2016 · Results of reduction tests conducted on iron ore pellets with carbon are presented in this work. Work done is centered on reduction kinetics using carbon as the reducing agent with a conventional heat supply (heat transfer process) compared with reduction kinetics where heat is supplied by microwaves to the whole volume.

Microwave Heating Applications in Mineral Processing ...

The effect of quenching was also illustrated with tests on the massive copper-zinc ore, where after 90 seconds of microwave exposure with no quenching, a reduction of 50% in the strength of the ore was obtained, while the addition of quenching directly after microwave treatment led to a further 15% reduction in work index.

HYL Process for Direct Reduction of Iron Ore – IspatGuru

Apr 22, 2017 · HYL process for direct reduction of iron ore was the fruition of research efforts begun by Hojalata y L.mina, S.A. (later known as Hylsa), at the beginning of the 1950s. After the initial evaluation of the concept, it was decided to install a process using a tunnel furnace and several runs were undertaken.

Application of Microwave Energy for Production of Iron ...

The reduction of iron oxides using microwave energy as heating source has been previously investigated. Ishizaki et al. (2006) investigated the microwave reduction of magnetite ore–coal composite pellets in a nitrogen gas atmosphere. They observed by means of XRD analysis that the reduction of magnetite started at about 800°C and

Reduction of Microwave Irradiated Iron Ore Particles in CO

The effect of microwave (2.45 GHz) pre-treatment on the reduction of magneto-hematite ore particles in CO was investigated. It was found that the presence of magnetite in the ore has considerable effect on the microwave treatment and that the oxidation of the goethite, present in the ore, is obtained after the magneto-hematite grains are almost entirely oxidized to hematite.

Reduction of iron ore with coal by microwave heating (Book ...

The reduction of iron ore with coal by microwave heating produces a pure, dust-free, and high Btu flue gas that can be used in related thermal operations. Depending upon the purity, the reduced iron product could be fed directly to electric arc furnaces for melting.

Application of Microwave Technology to the Production of ...

The reduction of iron oxides using microwave energy as heating source has been previously investigated. Ishizaki et al. (2006) investigated the reduction of magnetite ore–coal composite pellets in a nitrogen gas atmosphere using the microwave approach. By means of XRD analysis they …

Direct reduced iron - Wikipedia

Direct reduced iron (DRI), also called sponge iron, is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) to iron by a reducing gas or elemental carbon produced from natural gas or coal. Many ores are suitable for direct reduction.

Reduction ore CO - researchgate.net

Theeffect of microwave(2.45 GHz)pre-treatment onthe reduction of magneto-hematiteore particles in COwasinvesti- gated. Itwas found thatthe presence of magnetite in the ore has considerable effect ...

EVALUATION OF THE HEATING OF THE IRON ORE USING

EVALUATION OF THE HEATING OF THE IRON ORE USING THE MICROWAVE ENERGY1. LEONARDO MARTINS DA SILVA2, DIMITRY BUBNOFF3, MARISA NASCIMENTO4, JOSÉ ADILSOM DE CASTRO 5.. ABSTRACT . The phosphorus in steels when found in …

Microwave Heating Applications in Mineral Processing

Microwave Heating Applications in Mineral Processing ... The thermal treatment of ore to bring about thermal fracturing, and thereby a reduction in Ore strength is by no means a novel idea. The first century BC Greek historian, Diodorus Siculus, recorded in his Bibliotheca Historica the ancient practice of fire setting, verifying his ...

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