Microwave Technology for iron ore Reduction

Microwave Technology For Iron Ore Reduction

microwave technology for iron ore reduction

(PDF) INVESTIGATION OF MICROWAVE HEATING IN IRON . 2.2.3 Reduction of Iron ore About 2g of samples were used for the investigation and irradiated with microwave. The weight loss due to the reduction of iron ore was measured and recorded at frequent intervals: 0,3,6,9, 12, 15, 18, 21 and 24 minutes of microwave irradiation. Get Price; OULU 2015 ACTA

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

Application of Microwave Technology to the Production of ...

observed that iron nuggets can be produced from the Sheini iron ore using MPW 1, MPW 2 and the individual waste polymers. The measured extent of reduction ranged from about 68.7% to about 91.24%, with the highest attained for stone and the blend containing PET. Keywords: Reduction; Sheini Iron Ore; Waste Pure Water Sachets; Extent of Reduction.

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

Microwave assisted reduction of iron ore/slimes: An ...

May 11, 2015 · Microwave assisted reduction of iron ore/slimes: An innovative and cost effective approach for dry beneficiation for maximization of iron recovery from low grade ores. Project Images. Image Caption:Design of proposed Pilot Plant Set-up for iron ore beneficiation using rotary kiln based microwave furnace. Web Abstract

Microwaves Applied to Carbothermic Reduction of Iron Ore ...

May 09, 2016 · Ore used in this work is called “Alzada” which has well known reducibility characteristics, and is often used as standard for comparison. Microwaves Applied to Carbothermic Reduction of Iron Ore Pellets: Journal of Microwave Power and Electromagnetic Energy: Vol 32, No 2

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.

High-temperature dielectric properties and pyrolysis ...

Actually, Ye et al. investigated the contrast experiments on microwave heating and traditional heating for carbothermal reduction of manganese ore with coal as reducing agent, and reported that microwave heating offered excellent merits such as shorter reaction time, lower reduction temperature and energy consumption, higher reduction efficiency and environmentally-friendly (Ye et al., 2014). Assuredly, the unique characteristics of microwave heating …

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.

KINETICS OF IRON ORE REDUCTION BY COAL AND CHARCOAL

This is to certify that the thesis entitled, “Kinetics of iron ore reduction by coal and charcoal” submitted by Sri Sandeep Kumar Baliarsingh and Sri Barun Mishra in partial fulfillment of requirements for the award of Bachelor Of Technology degree in Metallurgical and Materials Engineering at National Institute Of Technology, Rourkela

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.

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 ...

Direct reduced iron - Wikipedia

Hot-briquetted iron (HBI) is a compacted form of DRI designed for ease of shipping, handling and storage. Hot direct reduced iron (HDRI) is DRI that is transported hot, directly from the reduction furnace, into an electric arc furnace, thereby saving energy. The direct reduction process uses pelletized iron ore or natural "lump" ore.

Reduction ore CO - ResearchGate

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 ...

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.

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 ...

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 …

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