The basicity of the briquettes and the firing temperature had the most significant effect on the product quality. For firing temperatures of 1 300–1 350°C, and a basicity of 1.22, fired briquettes with good mechanical strength and reduction properties were obtained. Crush strengths ranged from 200 kgf to >450 kgf.

DOI: 10.1007/s42243-024-01220-7 Corpus ID: 270271200; Identification of working conditions and prediction of FeO content in sintering process of iron ore fines @article{Li2024IdentificationOW, title={Identification of working conditions and prediction of FeO content in sintering process of iron ore fines}, author={Xiao-ming Li and Bao-rong …

The basic high-temperature properties of iron ore play a crucial role in optimizing sintering and ore blending, but the testing process for these properties is complex and has significant lag time, which cannot meet the actual needs of ore blending. A prediction model for the basic high-temperature properties of iron ore fines was thus …

Iron standard sol ution, 0. 1 mol /L: 5.5 8 ... This method has high accuracy in determining iron content in the samples ... The proposed technique provides iron determination in iron ore raw ...

procedure for determining the TML of iron ore fines The IMO DSC meeting in September 2013 introduced a new schedule for iron ore fines with an amendment to the individual …

1 Scope. This International Standard gives the definitions for terms used in TC 102 standards for sampling, sample preparation, moisture and particle size analysis and physical testing of iron ore and direct reduced iron. Some specific analytical terms used in the relevant International Standards are also included.

Scope: ASTM E246 defines the standard test methods to estimate iron concentration in iron ores, concentrates, and agglomerates. The methods are suitable for determining iron concentrations between 30% to 95% iron. This standard describes three methods using dichromate titration for estimating iron content. Hydrogen sulfide reduction, stannous ...

The iron oxide (FeO) content had a significant impact on both the metallurgical properties of sintered ores and the economic indicators of the sintering process. Precisely predicting FeO content possessed substantial potential for enhancing the quality of sintered ore and optimizing the sintering process. A multi-model integrated …

By Notification No. GSR 1152, dated 24th July, 1967 issued under Section 25(1) of the Customs Act, the Government exempted iron ore fines falling under Item 29 of the Second Schedule to the Tariff Act when exported out of India from so much of the duty leviable thereon as is in excess of Rs. 3/- per metric ton, where the iron content in the ...

ASTM E246-21. Standard Test Methods for Determination of Iron in Iron Ores and Related Materials by Dichromate Titrimetry. Significance and Use. 3.1 The …

distribution of iron ore fines Indian Standard IRON ORES — SAMPLING AND SAMPLE PREPARATION — MANUAL METHOD ( Third Revision ) 3 TERMINOLOGY For the purpose of this standard, the following ... exclusively for the purpose of determining moisture content. 3.11 Composite Sample for the Lot — The quantity of ore obtained by …

IS 12550 (1988): Methods of determining particle size distribution of iron ore fines. Disclosure to Promote the Right To Information. Whereas the Parliament of India has set …

1. Introduction. Iron ore fines (IOFs) are essential materials for the steelmaking industry with over million tons transported as solid bulk cargo annually by sea (NEPI, 2017).However, IOFs are widely recognized as liquefiable cargos that are susceptible to act like a liquid due to the ship's motion and vibration (DNVGL, 2019).The …

the porosity of iron ore pellets Method for determination of apparent specific gravity, true specific gravity and apparent porosity of iron ore lumps and sinters SECTION 1 MELTING CHARACTERISTICS OF DRI IN EAF 3 GENERAL 3.1 This section of the standard prescribes the melting characteristics of DRI in electric arc furnaces. 4 EFFECT OF …

The presence of impurities lowers the percentage of iron in the ore. The quality of iron ore is evaluated based on the iron content. More specifically, the ores having iron content above 65% are regarded as high-grade; iron content in the range of 62–64% is medium (average) grade, and iron content below 58% is considered as low …

be used for determining transportable moisture limit (TML) of Iron Ore Fines. See individual schedule for Iron Ore Fines. .2 Iron Ore Fines is iron ore containing both: .1 10% or more of fine particles less than 1 mm, and .2 50% or more of particles less than 10 mm. .3 The TML of Iron Ore Fines is taken as equal to the critical

The unutilized iron ore fines (IOF, − 10 mm, 45% to < 60% Fe(T)) left at various mine sites during blasting and processing are rich in goethetic-hematite associated with high clay and considered a potential iron ore resource. The variation of loss on ignition (LOI) from mines to mines is based on the goethite and clay mineral content. The clay …

This document was prepared by Technical Committee ISO/TC 102, Iron ore and direct reduced iron, Subcommittee SC 2, Chemical analysis. This third edition cancels and replaces the second edition ( ISO 2597-2:2015 ), which has been technically revised with the following changes:

Sinter fines and lumps make up the bulk of the seaborne iron ore market, and are the products most frequently traded on a spot basis, so daily pricing is used for the key 62% Fe, 58% Fe and 65% Fe fines, and …

The use of magnetite-based iron ore fines by means of fluidized bed technology has become a promising route to produce direct reduced iron. The significant influence of a prior oxidation treatment, which occurs in the preheating stage, on the subsequent fluidization and reduction behavior was observed in our previous study. As a …

Following the test protocols as prescribed by the BIS, the iron ore fines were found to contain iron as 57.30% on Dry Weight Basis and moisture content as 8.98%. At the port of discharge, the iron content upon testing on dry basis was found to be 57.53% and moisture at 9.35%. There is near harmony in the said test reports.

The particle size distribution of the iron ores varies among the different countries, as shown in Table 2 for the six types of iron ore fines. Since the −0.074 mm content of B1 is basically more than 90%, no further grinding is required. Thus, the particle size characteristics of the iron ore fines, excluding B1, are more suitable for sintering.

Fig. 1a for the determination of the LAT of iron ore. The LPF of iron ore refers to the ratio of the liquid-phase flow area generated after the high-temperature reaction of iron ore to the initial area. The experimental determination of the LPF of iron ore is shown in Fig.1b. The traditional experiment production adjustment mode is no longer

Large lumps as mined are crushed to approx 300mm. They are then further crushed to 6 – 40mm for shipment. Fines below 6mm can be further crushed and sold as sinter feed or formed with a binder into pellets. An iron ore crushing unit. Many ores with iron content below 60% may undergo a benficiation process.

Analysis of Iron Ore: Details Analysis of Iron Ore is Given Below WDXRF Analysis. The elemental analysis was conducted using (WDXRF), and the values are expressed as weight percentages (%). The results of the elemental analysis of iron ore fines are given in Table 2, which includes the total iron content along with the …

ISO shall not be held responsible for identifying any or all such patent rights. This document was prepared by Technical Committee ISO/TC 102, Iron ore and direct reduced iron, Subcommittee SC 1, Sampling. This fifth edition cancels and replaces the fourth edition (ISO 3087:2011), which has been technically revised.

ASTM, Standard Test Method for Determination of Total Iron in Iron Ores and Related Materials by Silver Reduction - Dichromate Titration, ASTM E 1081 - 95a, Annual Book of ASTM Standards, Vol. 03. ...

After extraction, iron ore is mechanically divided to produce three different q ualities; pell ets (9.5-16mm), lump. (6.3-31.5mm) and fines (<6. 3mm). Iron Ore Fines (IOF) make up ap proximately ...

The method is applicable to total iron contents between 30 % (mass fraction) and 72 % (mass fraction) in natural iron ores, iron ore concentrates and agglomerates, including sinter products. NOTE An equivalent International Standard that does not use mercury(II) chloride is ISO 9507:1990, Iron ores ?

1.1 This standard prescribs the methods of determination of moisture, silica, iron, alumina, titanium, manganese, calcium oxide, magnesium oxide, phosphor-us, sulphur, ferrous …