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Saturday, November 14, 2020 | History

2 edition of Effectiveness of organic binders for iron ore pelletization found in the catalog.

Effectiveness of organic binders for iron ore pelletization

L. A. Haas

Effectiveness of organic binders for iron ore pelletization

  • 234 Want to read
  • 33 Currently reading

Published by U.S. Dept. of the Interior, Bureau of Mines in Pittsburgh, PA .
Written in English

    Subjects:
  • Iron ores.,
  • Pelletizing (Ore-dressing),
  • Bentonite.,
  • Binders (Materials)

  • Edition Notes

    Bibliography: p. 21.

    Statementby Larry A. Haas, Jeffrey A. Aldinger, and Robert K. Zahl.
    SeriesReport of investigations ;, 9230, Report of investigations (United States. Bureau of Mines) ;, 9230.
    ContributionsAldinger, Jeffrey A., Zahl, Robert K.
    Classifications
    LC ClassificationsTN23 .U43 no. 9230, TN538.I7 .U43 no. 9230
    The Physical Object
    Pagination21 p. :
    Number of Pages21
    ID Numbers
    Open LibraryOL2147846M
    LC Control Number88600324


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Effectiveness of organic binders for iron ore pelletization by L. A. Haas Download PDF EPUB FB2

Effectiveness of Organic Binders for Iron Ore Pelletization By Larry A. Haas, Jeffrey A. Aldinger, and Robert K. Zahl UNITED STATES DEPARTMENT OF THE INTERIOR Manuel J.

Lujan, Jr., Secretary BUREAU OF MINES T S Ary, DirectorCited by: Effectiveness of organic binders for iron ore pelletization [Haas, L.

A.] on *FREE* shipping on qualifying offers. Effectiveness of organic binders for iron ore pelletizationAuthor: L. Haas. NIOSHTIC-2 Publications Search. Advanced Search Search Help About NIOSHTIC-2 Feedback.

Effectiveness of Organic Binders for Iron Ore Pelletization. Authors The U.S. Bureau of Mines investigated the use of organic binders as substitutes for bentonite in agglomerating iron ore concentrate.

Over 30 organic binders were evaluated at several. Effectiveness of organic binders for iron ore pelletization.

Pittsburgh, PA: U.S. Dept. of the Interior, Bureau of Mines, (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: L A. Use of Boron Based Binders in Pelletization of Iron Ores: Alternative Binders to Bentonite for Iron Ore Pelletization Organic binders were found to yield good quality green and dry pellets.

However, they fail to impart enough strength to the preheated and fired pellets. Boron compounds free of silica and alumina are thought to be a Cited by: 1. The U.S. Bureau of Mines investigated the use of organic binders as substitutes for bentonite in agglomerating iron ore concentrate.

Over 30 organic binders were evaluated at several dosage levels. USA US06/, USA USA US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords polymer process according sodium weight μm Prior art date Legal status (The legal status is an assumption and is not Effectiveness of organic binders for iron ore pelletization book legal by: Review of Organic Binders for Iron Ore Agglomeration J.A.

Halt, S. Komar Kawatra. Department of Chemical Engineering. Michigan Technological University. Houghton, MI ©[email protected] Date Last Edited: 5/22/ Introduction Iron ore pellets are one type of iron-rich, intermediate product used during primary iron and steel Size: KB.

Eisele & S. Kawatra () A review of binders in iron ore pelletization, Effectiveness of organic binders for iron ore pelletization book P rocessing and Extractive Metallurgy R eview: An International Journal, DOI: /   The pelletization process is the primary consumer of binders in the iron ore industry.

The selection of an appropriate binder type and dosage is of critical importance in producing good quality pellets at a reasonable price. Binders accomplish two very important functions in iron ore pelletization.Effectiveness of organic binders for iron ore pelletization [microform] / by Larry A.

Haas, Jeffrey A. Aldinger, and Robert K. Zahl U.S. Dept. of the Interior, Bureau of Mines Pittsburgh, PA (Cochrans Mill Road P.O. BoxPittsburgh ). FLOFORM™ Iron Ore Pelletization FLOFORM™, an alternative Traditionally bentonite is used as binder, but it reintroduces deleterious elements such as silica and alumina.

FLOFORM is typically dosed at % prior to balling, i.e. about 1/20th of Bentonite. Depending on the quality of iron ore, a dual binder system comprising both. Watch how Pelletization of iron ore can lead to energy savings of TJ with a 50% increase in sponge iron production annually.

United Nations Development Programme, India partners with. Organic binders generally do not contain high quantities of silica and alumina and are burnt during pre-heating, contrary to bentonite clays commonly used in pelletizing iron ore for blast furnaces.

Due to the need to process increasing volumes of low grade iron, interest in organic binders has increased by: 5. The iron is usually ground to a very fine level and mixed with limestone or dolomite as a fluxing agent and bentonite or organic binders as a binding agent.

If the ore is a Hematite ore, coke or anthracite coal can be added to the mix to work as an internal fuel to help fire the pellets. Iron Ore Pelletizing Aids Iron Ore pelletization is a tumble/growth agglomeration mechanism for solid particulates, which must comply with two key points.

The first point is to reach, during the balling stage, the capillary state without exceeding it. Aalto University, P.O.

BOXAALTO Abstract of master's thesis Author Lotta Casey Title of thesis Organic binders for iron ore pelletization Department Department of chemistry Professorship Organic chemistry Code of professorship Kem-4 Thesis supervisor Prof. Ari Koskinen Thesis advisor(s) Matias Penttinen, Jenni Lybeck Date Number of pages 91+3 Language.

SIVRIKAYA O., “Use of boron based binders in pelletization of iron ores: Alternative binders to bentonite for iron ore pelletization” LAP LAMBERT Academic Publishing, GmbH & Co. KG, Saarbrucken, Germany, ISBN –, p.

The use of conventional bentonite binder is favorable in terms of mechanical and metallurgical pellet properties, however, because of its acid constituents bentonite is considered as impurity especially for iron ores with high acidic content. Use of Boron Compounds as Binders in Iron Ore Pelletization The Open Mineral Processing Journal,Volume 3 27 Function of Binders Binders are used to improve pellet properties as listed below: • Promoting and facilitating - balling of iron ores in pellet-izing drum or disc; • The improvement of green, dry, pre-heated and fired.

Effectiveness of Organic Binders for Iron Ore Pelletization (Pittsburgh: U.S. Dept. of the Interior, Bureau of Mines, ), by L.

Haas, Jeffrey A. Aldinger, and Robert K. Zahl (page images at HathiTrust) Filed under: Ceramics -- Abstracts -- Periodicals.

Ceramic Abstracts (partial serial archives) Filed under: Pottery -- Abstracts. Bentonite is a predominant binder used in iron ore pelletization. However, the presence of a high content of silica and alumina in bentonite is considered undesirable for ironmaking operations. The objective of this study was to identify the alternatives of bentonite for iron ore pelletization.

To achieve this goal, different types of organic and inorganic binders were utilized to produce iron Cited by: ALTERNATIVE BINDERS TO BENTONITE FOR IRON ORE PELLETIZING - PART II: EFFECTS ON METALLURGICAL AND CHEMICAL PROPERTIES O.

SIVRIKAYA1 and A.I. AROL2 1 Adana Science and Technology University, Faculty of Engineering and Natural Sciences, Dept. of Mining and Mineral Processing Eng.,Adana, Turkey, [email protected] A review of binders in iron ore pelletization.

Iron ores. See also what's at Wikipedia, your library, or elsewhere. Broader term: Ores; Narrower terms: Hematite; Magnetite; Filed under: Iron ores Effectiveness of Organic Binders for Iron Ore Pelletization (Pittsburgh: U.S. Dept. of the Interior, Bureau of Mines, ), by L.

Haas, Jeffrey A. Aldinger, and Robert K. Zahl (page images at HathiTrust); Filed under: Rubies. The physical and chemical properties such as particle size, montmorillonite content, swelling degree, water absorption, and blue absorption of A, B, and C bentonites were studied under laboratory conditions.

The effects of adding different quality and different proportion of bentonite on falling strength, compression strength, and shock temperature of green pellet were by: 1.

"INTRODUCTION Iron ore beneficiation needs advances in areas such as process control, automation, burner and furnace designs, silica-free binders, and even alternative iron making routes.

While some – like new binders – are only step-changes, all are tools that can help make the ironmaking industry more sustainable. Iron Ore Pellets and Pelletization Process. Pelletizing of iron ore was started in the s to facilitate the utilization of finely ground iron ore concentrates in steel production.

For the pelletizing of iron ore there are two main types of processes namely, the straight travelling grate (STG) process and. (). Humic Substance-based Binder In Iron Ore Pelletization: A Review.

Mineral Processing and Extractive Metallurgy Review: Vol. 38, No. 5, pp. Cited by: 5. Effect of the Addition of Organic Binders on the Behavior of Iron Ore Pellets. The conclusion is a model for the behaviour of these binders as: 1 – the dispersion of colloidal particles on the surface of the particles to pelletise increases the viscosity in the liquid film between the particles, and 2 – it provides the physical way to Cited by: 7.

Effectiveness of organic binders for iron ore pelletization. Published Date: "The U.S. Bureau of Mines investigated the use of organic binders as substitutes for bentonite in agglomerating iron ore concentrate. Over 30 organic binders were evaluated at several dosage levels in laboratory tests.

The binder groups producing the greatest Cited by: Characterization of iron ore pellets with dextrin added organic binders under different time and temperature conditions Anand babu kotta*1, Swapan kumar karak1 and M.

Kumar1 1Department of Metallurgical and Materials Engineering, National Institute of Technology, Rourkela, Orissa, India Corresponding author E-mail: [email protected] by: 1. Iron ore pellets from Brazil [microform]: determination of the Commission in investigation no.

TA-2 Effectiveness of organic binders for iron ore pelletization [microform] / by Larry A. Haas, Jeffrey A.

Sampling, characterization, and evaluation of Midwest clays for iron ore pellet bonding [microform] / by. SYNOPSIS Ammasi. A Traditionally, bentonite is used as the most common binder in iron ore pelletization from the very beginning.

It gives good bonding property to green and dry pellets at ambient as well as elevated temperature. However, bentonite contains around 60% silica and 18 % alumina that proportionally increase the alumina and silica content in pellet and increases slag volume and Author: A Ammasi, J Pal.

of the materials to be used (fly-ash, and magnetite ore), training of personnel on pelletization procedures, obtaining and setting up pelletization apparatus in the MTU laboratories, and running pelletization experiments with bentonite binder to establish a baseline for comparison with the fly Author: S.K.

Kawatra, T.C. Eisele. The present invention refers to a binding composition containing bentonite for use in binding finely ground iron ore. The composition of the invention comprises bentonite and molasses.

The invention also refers to process for preparing iron ore pellets wherein a composition comprising bentonite and molasses is Cited by: 6. Binders are broadly classified into following categories: Organic Binders: Dextrin, Thermosetting Resin, Processed or natural oils, Peridur, Carbocel, carboxymethyl cellulose Inorganic Binders: Bentonite, Cement, Lime, Olivine, etc Criteria of binders for iron ore pelletization 1) Mechanical properties.

It should maintain good mechanical. Iron ore concentrate pellets are traditionally hardened at high temperatures in horizontal grates and grate-kiln furnaces. However, heat induration requires tremendous quantities of energy to produce high-quality pellets, and is consequently expensive.

Cold bonding is a low-temperature alternative to heat induration. Pellets can be cold bonded using lime, cement, sponge iron powder, and Cited by: Abstract.

The effect of lime addition in hematite iron ore pelletson its physico-chemical as well as mechanical properties with respect to blast furnace requirement was studied in a laboratory scale with varying basicity i.e.

Increasing addition lime produced more calcium-alumino-silicate phases (slag)asevidenced by SEM-EDAX analysis. Iron ore from Gandha Mardana mines and charcoal were used in the is of the iron ore showed that it contained %Fe, %SiO2, and % Al2O3.

The reaction carried out in the experiment is mainly of direct reduction because here we have used charcoal. The iron ore was crushed, ground and screened to # size and charcoal to 72#.

Current practice for pelletizing iron ore concentrates was developed in ’s during which bentonite clay was practiced as a binder and since then it has remained the most acceptable binder because of its effectiveness and relatively low cost.Characterization of modified humic substances based binders for iron ore agglomeration was examined by chemical analysis, optical density, Fourier transform infrared spectrum (FTIR), and thermogravimetry and differential scanning calorimetry (TG–DSC).Cited by:   Furthermore, a new pelletization method by using organic binders coupled with additives was suggested to enhance the pellet strength.

The strength of the PVA pellet increased by employing the biomass gasification residue (BGR) as the by: 2.