method for microwave direct reduction iron

  • Emerging Technologies for Iron and Steelmaking

    The iron and steel industry has undergone a technological revolution in the last 40 years In a relatively short time the North American industry has observed the complete disappearance of basic open hearth processing as well as the wide spread adoption of continuous casting and the near complete shift of long product production to the electric arc furnace sector

    Get Price
  • Standard Methods for the Examination of Water and

    2021 10 27 K Microwave Assisted Digestion 3110 METALS BY ATOMIC ABSORPTION SPECTROMETRY 3111 METALS BY FLAME ATOMIC ABSORPTION SPECTROMETRY A Introduction B Direct Air Acetylene Flame Method C Extraction/Air Acetylene Flame Method D Direct Nitrous Oxide Acetylene Flame Method E Extraction/Nitrous Oxide Acetylene Flame Method

    Get Price
  • A New Method for the Direct Determination of Dissolved

    2001 7 9 The new method utilizes two selective ligands to stabilize Fe III and Fe II thereby preventing changes in Fe reduction oxidation distribution Complexed Fe II is cleanly removed using a silica based reversed phase adsorbent yielding excellent isolation of the Fe III complex Iron III concentration is measured colorimetrically

    Get Price
  • Iron and Steel Manufacturing

    Iron and Steel Manufacturing Industry Description and Practices Steel is manufactured by the chemical reduction of iron ore using an integrated steel manufac turing process or a direct reduction process In the conventional integrated steel manufacturing process the iron from the blast furnace is con verted to steel in a basic oxygen furnace

    Get Price
  • Test methods for the laboratory evaluation of iron burdens

    This paper surveys the methods currently being used to assess the suitability of iron ores and pellets for use in particular direct reduction DR processes Evaluations are made of the DR test methods used by some 12 organizations

    Get Price
  • IS 11285 2002 Various Tests on Raw Materials to be

    2018 11 15 sponge iron fdirect reduced iron DRI Guidelines for ash softening studies on solid reductants for direct reduction rst revision Methods of determination of coal char reactivity for direct reduction processes first revision 3 TEST METHODS 3 1 For Oxide Feed Stock Iron Oxides Lump Ore Pellets Mill Scale Etc 3 1 1 Size Distribution

    Get Price
  • 300kt/a Rotary Method DRI direct reduction iron making

    2021 9 24 300kt/a Rotary Method DRI direct reduction iron making for Jianlong Group Direct reduced iron is a non blast furnace ironmaking technology It is a non blast furnace ironmaking technology encouraged in the national industrial structure adjustment Direct reduced iron is a direct raw material for special steel and powder metallurgy and it is

    Get Price
  • The Use of Hydrogen in the Iron and Steel Industry

    2018 8 28 iron added to dilute the tramp elements such as copper and zinc to improve final product quality DRI D irect R educed I ron is one of the iron products added to the scrap to increase purity DRI is iron ore that has been reduced to iron with syngas without melting DRI processes in U S generally use natural gas to reduce

    Get Price
  • ASTM E382

    E877 Practice for Sampling and Sample Preparation of Iron Ores and Related Materials for Determination of Chemical Composition and Physical Properties ISO Standards ISO 4700 Iron ore pellets for blast furnace and direct reduction feedstocksDetermination of the crushing strength

    Get Price
  • Preparation of reduced iron powder using combined

    2014 11 15 The reduced iron powder was prepared in microwave field by combined distribution of wood charcoal with the holding time 50 min using Höganäs process ring like charging method heavy oil was used as fuel and the reduction period was 172 h The chemical composition of the products meets the HY100 23 first class iron powder standard

    Get Price
  • TECHNICAL DEVELOPMENTS IN THE MIDDREX PROCESS

    2017 6 14 MIDREX direct reduction process He proposed the concept of combining stoichiometric natural gas reforming with shaft furnace direct reduction of iron ore This process came in use for the first time by the Midland Ross Co which later became MIDREX Technologies Inc The plants were built in Toledo Ohio in 1967 and in Portland Oregon in 1969

    Get Price
  • PDF Microwave Assisted Iron Oxide Nanoparticles

    We here report the effects of microwave assisted sol gel method on structural and magneti c properties of iron oxide nanoparticl es NPs Microwave power MP is varied as 136 264 440 616

    Get Price
  • Anaerobic Bioremediation Direct

    Biologically Available Iron Fe III Specialty laboratory method Bioassay with quantification of bioavailable solid phase ferric iron Fe III which is a competing electron acceptor Optional method that can be used to determine competition from iron reduction Might also affect potential abiotic reactions

    Get Price
  • ISO/DIS 14404 3 en Calculation method of carbon

    This part of ISO 14404 specifies calculation methods applicable to those companies using EAF to produce steel and having Direct Reduced Iron facilities within their premises It can be used to evaluate the total annual carbon dioxide CO 2 emissions and the emission factor of CO 2 per unit of steel production of the entire steel production

    Get Price
  • Amine synthesis by nitro compound reduction

    A generally applicable method for the introduction of gaseous hydrogen into a sealed reaction system under microwave irradiation allows the hydrogenation of various substrates in short reaction times with moderate temperatures between 80 C and 100 C with 50 psi

    Get Price
  • 300kt/a Rotary Method DRI direct reduction iron making

    2021 9 24 300kt/a Rotary Method DRI direct reduction iron making for Jianlong Group Direct reduced iron is a non blast furnace ironmaking technology It is a non blast furnace ironmaking technology encouraged in the national industrial structure adjustment Direct reduced iron is a direct raw material for special steel and powder metallurgy and it is

    Get Price
  • IS 11285 2002 Various Tests on Raw Materials to be

    2018 11 15 sponge iron fdirect reduced iron DRI Guidelines for ash softening studies on solid reductants for direct reduction rst revision Methods of determination of coal char reactivity for direct reduction processes first revision 3 TEST METHODS 3 1 For Oxide Feed Stock Iron Oxides Lump Ore Pellets Mill Scale Etc 3 1 1 Size Distribution

    Get Price
  • Reduction of Iron Oxides with Hydrogen A Review

    Reduction with hydrogen in the best case produced via renewable energies is a future minded alternative to commonly used fossil fuels Direct reduction processes which reduce iron ore to metallic iron without any liquid phase especially have the possibility to use a high percentage of hydrogen in the reducing gas mixture

    Get Price
  • Metallurgical vessel and method of direct reduction of iron

    C21B13Making spongy iron or liquid steel by direct processes FIELD metallurgy equipment for heat treatment SUBSTANCE metallurgical vessel for manufacture of cast iron or steel contains a bottom part a roof part a side wall and a tuyere system consisting of at least two tuyeres for feeding oxygen containing gas inside the vessel

    Get Price
  • A comparison of three colorimetric methods of ferrous

    2012 2 28 iron can be accurately measured in natural freshwaters and under what conditions using the three most common colorimetric methods A second objective was to refine the method for total reactive iron TRFe defined as the total amount of ferrous iron and reducible ferric iron that react with the reagents to form the chromogenic compound

    Get Price
  • Determination of iron II by permanganate titration

    Apart from general sources of titration errors when titrating iron with permanganate we should pay special attention to titrant and to reduction procedure Potassium permanganate solutions are not stable and they should be filtered and normalized every 2 3 months If the precipitate after reduction procedure is gray we should omit the sample

    Get Price
  • Preparation Characterization and Cross linking of

    icrowave irradiation method Chitosan 85 DAC dissolved in 1 acetic acid and vanillin dissolved in 10 mL of acetone was microwaved together at varying microwave power and time After completing the reaction the mixture was cooled and left overnight to obtain thick slurry It was then washed with 5 mL of ethanol 95 dried in a vacuum oven at 45 C for 12 h pulverised sieved using BSS

    Get Price
  • Standard Methods for the Examination of Water and

    2021 10 27 K Microwave Assisted Digestion 3110 METALS BY ATOMIC ABSORPTION SPECTROMETRY 3111 METALS BY FLAME ATOMIC ABSORPTION SPECTROMETRY A Introduction B Direct Air Acetylene Flame Method C Extraction/Air Acetylene Flame Method D Direct Nitrous Oxide Acetylene Flame Method E Extraction/Nitrous Oxide Acetylene Flame Method

    Get Price
  • Analysis of Direct Reduced Iron and Hot Briquetted Iron

    2019 1 17 energy and quality of fuel is the Direct Reduction of Iron DRI which accounts for 75 Mt/y of iron The yielded spongy iron is further processed by sintering to obtain more compact and easily transportable Hot Briquetted Iron HBI which is afterwards molten by e g arc furnaces to obtain steel alloys To control the quality of starting iron

    Get Price
  • Microwave assisted reduction reactions

    2021 1 1 Microwave MW assisted methods provided a revolution for the reduction of olefins in comparison to the conventional ones For instance E benzyl but 2 enoate is reduced to benzyl butyrate in 95 yield with triethylsilane using the Grubbs catalyst at 150 C for 1 h Moreover reduction of a range of nonimmobilized olefin is investigated under optimized conditions

    Get Price
  • Electrolysis method described for making green iron

    2013 5 8 Electrolysis method described for making green iron Anyone who has seen pictures of the giant red hot cauldrons in which steel is made fed by vast amounts of carbon and belching flame and

    Get Price
  • Hach Methods Quick Reference Guide

    Hach Methods Quick Reference Guide The tables on the following 5 pages list test ranges methods of analysis and corresponding reagent set Product Numbers The complete procedures are available on hach The ranges given are for the pre calibrated instrument readout higher ranges can be analyzed by sample dilution

    Get Price
  • Microwave assisted chemical reduction routes for direct

    2011 5 13 In the present work microwave assisted chemical reduction route has been explored for the direct synthesis of face centered tetragonal fct L10 phase of Fe–Pt nanoparticles Effects of microwave power and irradiation time on the growth process were investigated Using this facile and high yield technique we could tune particle size from 7 to 17 nm The as prepared Fe–Pt NPs were observed

    Get Price
  • Metallurgical vessel and method of direct reduction of iron

    C21B13Making spongy iron or liquid steel by direct processes FIELD metallurgy equipment for heat treatment SUBSTANCE metallurgical vessel for manufacture of cast iron or steel contains a bottom part a roof part a side wall and a tuyere system consisting of at least two tuyeres for feeding oxygen containing gas inside the vessel

    Get Price
  • Iron Steel

    2021 6 25 various Iron and Steel processes that are briefly discussed in section IV this appendix also includes an estimate of GHG emissions from the various sectors and processes IV Description of the Iron and Steel Industry The production of steel at an Integrated Iron And Steel plant is accomplished using several interrelated processes

    Get Price
  • Sponge Iron and Smelting Reduction MTD

    2013 10 9 Coal Char Reactivity for Direct Reduction ProcessMethod of Determination IS 12668 pdf IS 12668 txt 1989 Melting characterstics of sponge iron/direct reduced iron DRI IS 12929 pdf IS 12929 txt 2007 Feedstock iron oxides and natural gas for gas based direct reduction processes guidelines IS 13839 pdf IS 13839 txt 1993

    Get Price
  • IS 15774 2007 Sponge Iron/Directed Reduced Iron DRI

    2018 12 25 Methods of sampling of iron ores second revision Methods of chemical analysis of iron ores Methods of chemical analysis of iron ores Part 1 Determination of common constituent first revi rion Method for test sieving Jirst revision Guidelines for storage and transportation of sponge iron/direct reduced iron DRI Density of hot briquette

    Get Price
  • Modelling and optimization of a rotary kiln direct

    2015 6 11 laterite iron ore reduction and spodumene lithium production In this paper the direct reduction of iron ore to sponge iron is used as an example The model incorporates a large number of variables covering amongst others feed properties and rates combustion options kiln operating information speed and fill level

    Get Price
  • Direct Reduced Iron DRI

    2021 10 24 Direct reduced iron DRI also called sponge iron is produced from direct reduction of iron ore in the form of lumps pellets or fines by a reducing gas produced from natural gas or coal The reducing gas is a mixture majority of hydrogen H2 and carbon monoxide CO which acts as reducing agent This process of directly reducing the iron

    Get Price
  • Method for direct metal making by microwave energy

    2000 2 14 Method for direct metal making by microwave energy United States Patent A method as defined in claim 1 wherein said ore comprises a metal selected from the group consisting of iron copper nickel cobalt lead and zinc Both of these processes differ from the direct reduction processing disclosed herewithin inasmuch as the

    Get Price
  • HBI production

    The schematic represents the HBI briquetting process Direct Reduced Iron is discharged hot from the reduction furnace and screw fed into the nip between two counter rotating rollers Pockets in the synchronously rotating rollers form the briquettes This process occurs at high temperatures typically approx 700 C and high pressing forces

    Get Price
  • Oxidation Reduction Titration Determination of Iron

    Introduction In this experiment oxidation/reduction or redox will be used in the titration analysis of an iron compound We will use potassium permanganate KMnO4 as the titrant in the analysis of an unknown sample containing iron to determine the percent iron by mass in the sample

    Get Price
  • Oxidation Reduction Titration Determination of Iron

    Introduction In this experiment oxidation/reduction or redox will be used in the titration analysis of an iron compound We will use potassium permanganate KMnO4 as the titrant in the analysis of an unknown sample containing iron to determine the percent iron by mass in the sample

    Get Price
  • Microwave Over the Range Venting Options Guide

    Typically there might be a cabinet installed over the microwave and inside that cabinet will be duct work or a soffit above the microwave or a direct wall exhaust Normally this type of microwave over the range OTR will have a full frame door with no panel above it as depicted here

    Get Price
  • Shift from coke to coal using direct reduction method and

    2009 2 1 Ironmaking involves the separation of iron ores It not only represents the first step in steelmaking but also is the most capital intensive and energy intensive process in the production of steel The main route for producing iron for steelmaking is to use the blast furnace which uses metallurgical coke as the reductant Concerns over the limited resources the high cost of coking coals and

    Get Price