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Humic Acid (MHA) Binder in the Pelletizing Of Fluxed Hematite Concentrate." Mineral Processing and Extractive Metallurgy Review (2017): 126131. McDonald, Jacob, and S. Komar Kawatra. "Plate Water Absorption as an Assessment Tool for Organic Binders." Mineral Processing and Extractive Metallurgy Review (2017): 250253.
Modified humic acid (MHA) binder based on lignite humic substances is a novel sort of promising organic binder for iron ore pellets. Humic acid (HA) is one of the main ingredients of MHA binder.
Dec 13, 2018· Humic acid is a kind of organic acid containing various functional groups produced by plants in the process of spoilage. It has colloidal properties. The humic acid binder has strong polarity and is easy to bond with the surface molecules or molecules in the micropores, this could lead to a certain strength coal briquette.
Characterization of Humic Acid Modified Bentonite Binder . Anew kind of iron ore pellet binder named humic acid modifying bentonite (HA) has been developed by the author''s group, which has the advantages of both organic HA and inorganic bentonite. The green pellet strength can be obviously improved by using the HA binder. Chat Online »
Current practice for pelletizing iron ore concentrates was developed in 1950''s during which bentonite clay was practiced as a binder and since then it has remained. Chat Online » Characterization of Humic Acid Modified Bentonite Binder . Anew kind of iron ore pellet binder named humic acid modifying bentonite (HA) has been developed by the ...
humic acid binder pelletizing fine coal. Dolomite Grinding Mill Machine,Processing,Sale . Dolomite Grinding Mill Machine,Processing,Sale,Manufacturer Dolomite Properties And Appliions. Dolomite is widely used in Iron Steel Industries due to its strength and compatibility in the process of purifying Iron Steel. dolomite powder can also be ...
LIU Guogen. Study on HAtype binders for direct reduction of cold bond pellets and its raw material characteristics [D]. ... Study of the extraction of humic acid from weathered coal [J]. Chemical Industry Times, 2006, 20(6):10–12. (in ... A study of technological parameters of extract in preparation process of HA series pellet binder [J ...
A humic acid binder for pelletizing of fine coal. This stone describes a new coal pelletization process that utilizes a coalderived binder consisting of a watersoluble colloidal system of humic acids dispersed in an ammonium hydroxide solution. Finecoal pellets produced by this process were subjected to
Jan 31, 2017· On the basis of Funa binder research, the extracting procedure of a humic substancebased binder was modified, and a composite binder named Modified Humic Acid (MHA)was prepared for oxidized pellets, especially for making VanadiumTitanium (VTi) magnetite pellets, and achieved qualified VTi magnetite oxidized pellets in industrial testing.
PETC`s task in this agreement was to conduct broad, baseline studies in three areas: (1) to develop a humic acid binder from AMAX subbituminous coal using the PETCdeveloped Humic Acid Binder Process, (2) to reconstitute AMAX`s dried subbituminous coal fines from the bag house and the fluidized bed dryer product with humic acid binder, and (3 ...
Oct 07, 1986· The humic acid is extracted from oxidized carbonaceous material with a mild aqueous alkali solution of, for instance, ammonia. The particulate material is blended with the extract which serves as the binder for the agglomerates. The waterresistant agglomerates are formed such as by pelletizing, followed by drying to remove moisture and ...
A humic acid binder for pelletizing of fine coal. January 1986. ... A preliminary cost analysis indicates that the humic acid binder can be produced for less than one half the cost of an asphalt ...
Fulvic acid is one of the important functional groups of modified humic acid (MHA) binder which is invented by the authors and can be used as an excellent composite binder in pelletizing.
The binders used for cold consolidation molding mainly include water glass, cement, asphalt, humic acid salt, carboxymethyl cellulose, starch, etc. inorganic binders have side effects of increasing harmful elements in iron concentrate, which may lead to poor metallurgical properties of pellets, so organic binders came into being.
In this study, alkalinized MWCNT supported MoS2 catalysts have been doublypromoted with Co and Rh. Catalysts were prepared by the conventional coimpregnation method and stabilized under argon atmosphere. Characterization of the oxidic samples by BET revealed that the mesoporosity of the pristine MWCNT support was not compromised after loading a combined total of 30 wt% metals (9 wt% K, ...
Oct 22, 2016· The coal fines with peat are mix and the resulting well mixed mass is then pelletizing by the application of pressure in conventional equipment – stiff extrusion. The coal fines and peat was conditioned at various moisture contents to observe the effects on the finished product. The material then agglomerated into a granular product.
concentration of humic acid to be of economic interest. New Mexico''s agricultural humate typically contains 12 to 18% humic acid. The material should also have low Hg, As, Se, Cd, Ba, Pb, Zn and radionucleide content (Hoffman et al., 1993). The materials used for drilling fluid applications typically contain over 65% humic acid (Hoffman et al ...
A STUDY OF LEONARDITEWATER GEL SYSTEMS by Philip H. Tufte in Chemical Engineering, University of North Dakota 1961 A Thesis Submitted to the Faculty
Oct 09, 2014· Senesi N, Plaza C, Brunetti G, Polo A. A comparative survey of recent results on humiclike fractions in organic amendments and effects on native soil humic substances. Soil Biol Biochem. 2007; 39 (6):1244–1262. Sharif M, Khattak RA, Sarir MS. Effect of different levels of lignitic coal derived humic acid on growth of maize plants.
Pelletizing of Iron Ore Concentrates. Table of ContentsResearch ProgramMajor VariablesApplications of Peat Moss Binder General Application The program of study of pellet binder materials was begun by the ORF in 1963 to examine various Canadian materials as substitutes for bentonite which is imported in large tonnages (199,270 tons in 1969) from the for Canadian pellet plant operations.
Nov 01, 2019· 1. Introduction. Humic acid (HA) is a kind of natural organic matters widely present in lignite, danty and natural waters (such as lakes, groundwater and rivers) (Wang et al., 2012; Kavurmaci and Bekbolet, 2013).The interaction between HA and natural mineral particles in presence of water is a very important research subject in a wide range of geochemical and environmental fields (Lei et al ...
Jan 31, 2017· Humic substances exist widely in lignite coal as high molecular weight organic molecules. They can be used as binders in iron ore pelletization mostly in the form of salt, such as sodium humate and amine humate via extraction from lignite coal. It is worth determining if lignite can be used as a binder without extraction.
A further study on adsorption interaction of humic acid on natural magnetite, hematite and quartz in iron ore pelletizing process: Effect of the solution pH value. Powder Technology 2015, 271, 155166. DOI: / Dora I A Pereira, Bianca Lederer, Jonathan J Powell.
where coal is mined. They are correctly called Leonardites or oxidized Lignites. For many years the most commonly used humic product was a black liquid extract called humic acid. Humic acid is obtained by mixing a strong base liquid material like sodium hydroxide or more commonly potassium hydroxide with a dry humate material.
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