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Coal Derived Additive,, Lignite, Etc. Patents (Class 524/65) Tar or pitch (Class 524/66) Plasticsbased manufactured article and process for forming. Patent number: ...
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.
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.
Humic Acid Production Line, Humic Acid Production Line ... Alibaba offers 253 humic acid production line products. About 49% of these are granulators, 42% are organic fertilizer, and 1% are other chemical equipment. A wide variety of humic acid production line options are available to .
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 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.
Making Acid Iron Ore Pellet Metallurgist Mineral . Table of ContentsPlant Test PreparationMixing experiments with tracer materialConclusion In 1976 CVRD started the investigation of organic binders application for iron ore agglomeration.
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.
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.
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 ...
The invention relates to a method and apparatus of forming pellets and in particular spherical binderless pellets from lower rank coals. The method includes the steps of feeding a pelletizing means 10, with a lower rank feedstock, 1; rotating the coal in said pelletizing means, 10, to form pellets in the absence of any binder, wherein the pellets are formed by compaction and layering of coal ...
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.
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.
A coal agglomerate is produced by the combination of coal fines with a binder obtained by the direct liquefaction of biomass material. The direct liquefaction is carried out in the absence of oxygen at typical temperatures between about 450 and 700° F. and typical pressures between 200 and 3,000 psi, according to known liquefaction processes.
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, ...
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 ...
A STUDY OF LEONARDITEWATER GEL SYSTEMS by Philip H. Tufte in Chemical Engineering, University of North Dakota 1961 A Thesis Submitted to the Faculty
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.
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 ...
The method of coalbriquette preparation has been described in detail elsewhere 1, 2. Briefly, the coal was impregnated with a constant binder volume (a humic acid containing inherently potassium), mixed for 30 min, dried at 110°C, pressed (1–2 kg/cm 2) and pyrolyzed in N 2 for 2 h at different temperatures: 400, 500 and 700°C. Potassium ...
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 ...
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
Humic Acid Organic Fertilizer Production Line Pelletizing Machine. Introduction of Fertilizer Production Line . The material enters the machine from the feed inlet at one end of the machine body, and is continuously pushed through the granulation rotor and mechanically moved with the housing to achieve the purpose of granulation.
FIELD: agriculture. SUBSTANCE: method of production of watersoluble humic acids which includes drying of brown coal with a content of humic acids of at least 50%, crushing the brown coal, processing the crushed coal with the alkaline reagent, and brown coal before crushing is dried to a residual moisture content of no more than 20%, after crushing it is divided into fractions : more than 10 ...
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