In this paper the diversity of industrial microwave applications is highlighted by the description of another exciting field for microwave usage: the microwave carbothermic reduction of metal oxides. This is a metallurgical application for metal production, for example pig iron from hematite. It is proposed a conception of single mode cavity adapted for mass and …
Reduction Of Iron Ore By Charcoal Under Microwave Irradiation 45 Table 2. XRF data of the sample (2000 Watt) Based on table 2, the longer irradiation time, the greater Fe content in the sample. The highest Fe content was reached by microwaves heating for 50 minutes in 2000 Watt power supply, approximately 77.29%.
Figure 1 Iron ore microwave assisted carbothermal reduction Description The Microwave Laboratory LMO at Mau Institute of Technology IMT is a multidisciplinary laboratory oriented to the development of chemical processes using microwaves. Its activities are related to Chemical Engineering and Electronic Engineering. It has a 300
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.
method for microwave direct reduction iron. microwave technology for iron ore reduction. Reduction of iron ore with coal by microwave heating . Over 90% reduction of the iron ore can be achieved in about 10 minutes at temperatures about 1,000 C with 20% excess stoichiometric carbon in the mix.
This study evaluates the carbothermal microwave reduction of low-grade banded hematite jasper iron ore for the preparation of potential feedstock for the alternative iron-making process. The coal sample act as transparent material to microwave irradiation at low temperature, however, above 600 °C, an exponential rise in temperature with a heating rate of ~ 220 °C/min …
Microwave can speed up the rate of carbothermal reduction of iron ore and AOD smelting Microwave Technology For Iron Ore Reduction,Microwave Technology For Iron Ore Reduction. Journal of kunming universityof science and technology, 200631 50-59.33.Sun y, takaoka m, takeda n,matsumoto t, oshita k.Application of water as a solvent in microwave …
Request PDF | Microwaves for Reduction of Iron Ore Pellet by Carbon | Results of reducibility tests of reduction conducted on iron ore pellets by …
Abstract This paper presents the results of a study on carbothermal reduction of iron ore made under the microwave field in equipment specially developed for …
Carbothermal Reduction of Iron Ore Applying Microwave Energy. steel research international, 2012. Jose Senise. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 31 Full PDFs related to this paper. Read Paper.
Microwave reducing system for iron ore is popular used in mine industry. This microwave machinery also can be used for sintering alumine, gold, glass ceramic and others. The temperature can be heated to above 1200 centigrade degree. The principle of microwave heating
Reduction Of Iron Ore By Charcoal Under Microwave Irradiation 43 REDUCTION OF IRON ORE BY CHARCOAL UNDER MICROWAVE IRRADIATION 1MUHAMMAD JUNAIDI, 2KEN NINEZ N.P, 3SHEILA PRAMUSIWI, 4IKA ISMAIL, 5SUNGGING P. 1,2,3,4,5 Department of Materials and Metallurgical Engineering, Sepuluh Nopember Institute of Technology
The reduction was carried out in a microwave plasma system. Iron ore particles are fully reduced in hydrogen plasma at 500 to 1500 W, 20 to 100 Torr and 300 to 800°C using hydrogen gas at a flow rate of 100 to 500 sccm (standard cubic centimeter per minute). The product is analyzed after it was cooled to room temperature.
Jun 15 2020 · This study evaluates the carbothermal microwave reduction of lowgrade banded hematite jasper iron ore for the preparation of potential feedstock for the alternative ironmaking process The coal sample act as transparent material to microwave irradiation at low temperature however above 600 °C an exponential rise in temperature with a heating rate of 220 °Cmin …
Reduction of microwave irradiated iron ore particles in CO. ISIJ International, 1991. N. Standish. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. Read Paper. Download PDF. Download Full …
The results of the reduction tests show that microwave treatment enhances reduction but benefit optima exist. In the present ore optimum reduction was obtained for an irradiation of 6 min at a...
Two types of iron concentrates, A and B, were used for the preparation and microwave reduction of iron ore-biochar composite pellets. Their main chemical compositions are shown in Table 1.Iron concentrate A was a major raw material with high iron grade (67.61%) and low hazardous elements, such as K, S and P, meeting the chemical composition requirements for …
iron recovery from steelmaking residues in reduction processes using microwave energy for heating, providing significant insight for the development of new clean technologies. Keywords: Steelmaking mill scale, Microwave, Self-reduction. 1. Introduction An integrated steel mill can generate 500 to 700 kg of waste per ton of steel produced.
We used a microwave generator of 2.45 GHz with variable power up to 3000 W. Self‐reducing pellets under argon atmosphere, containing iron ore and petroleum coke, with 3.5 g of mass and 15 mm of diameter were declined.
MICROWAVES APPLIED TO CARBOTHERMIC REDUCTION OF IRON ORE PELLETS JUAN A. AGUILAR IDALIA GOMEZ Universidad Autónoma de Nuevo León, Facultad de Ingeniería Mecánica y Eléctrica Apartado Postal 076"F", Cd. Universitaria, San Nicolás de los Garza, N.L. CP. 66450, México Tel. (52+8) 329-40-20, Fax. (52+8) 376-45-14, (52+8)332-09-04
Download Citation | Microwave Carbothermic Reduction of Low-Grade Iron Ore | This study evaluates the carbothermal microwave reduction of …
domestic microwave oven and the extent of reduction was determined after 40 min of irradiation. It was observed that highly carburised premium grade iron nuggets can be produced from the Pudo iron ore using 'pito' waste (both charred and uncharred) and its blends with HDPE as reductant.
Microwave Direct Reduction Iron Mineral In Malaysia. Iron Ore Is Found In Nature In The Form Of Rocks Mixed With Other Elements By Means Of Various Industrial Processes Incorporating Cuttingedge Technology Iron Ore Is Processed And Then Sold To Steel Companies The Iron Ore Produced By Vale Can Be Found In Houses Cars And Appliances
OSTI.GOV Book: Reduction of iron ore with coal by microwave heating. Reduction of iron ore with coal by microwave heating. Full Record ...
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
The invention discloses a method for decreasing phosphorus of high-phosphorus iron ore by adopting microwave reduction-magnetic separation, solving the problems that the dephosphorizing speed of the high-phosphorus iron ore is low, and the iron recovery rate and the dephosphorizing rate are low. The method is characterized by comprising the following steps: …
MICROWAVES FOR REDUCTION OF IRON ORE PELLET BY CARBON IDALIA GOMEZ AND JUAN A. AGUILAR Universidad Aut6noma de Nuevo Le6n, Facultad de Ingenieria Mecdnica y Elctrica, Apartado Postal 076"F", Cd. Universitaria, San Nicold.s de los Garza, N.L. CP. 66450, M6xico ABSTRACT Results of ...
Moreover, the technology to reduce iron ore with hydrogen in blast furnaces has not been commercially operated because of the difficulty in obtaining hydrogen at low production costs' Technology. 01. Technologies to reduce CO 2 emissions. Hydrogen reduction of iron ore generates H2O instead of CO 2, ...
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.
3.1. Degree of reduction of iron ore particles and steelmaking mill scale using microwave energy. Table 4 lists the interactions between independent properties to be analyzed in this study in the form of an experimental design composed of 15 tests as well as the resultant degrees of reduction obtained for each experiment.