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a humic acid binder for pelletizing of fine coal
A humic acid binder for pelletizing of fine coal OSTI.GOV
The U.S. Department of Energy's Office of Scientific and Technical Information
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A humic acid binder for pelletizing of fine coal Semantic Scholar
This paper describes a new coal pelletization process that utilizes a coal-derived binder consisting of a water-soluble colloidal system of humic acids dispersed in an ammonium hydroxide solution. Fine-coal pellets produced by this process were subjected to various physical-strength and weather-resistance tests. These tests showed that the humic acid binder
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a humic acid binder for pelletizing of fine coal
Interfacial reaction between humic acid and Ca. 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
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a humic acid binder for pelletizing of fine coal
Humic Substance-based Binder In Iron Ore Pelletization: A. Jul 11, 2017 Jul 11, 2017 Humic substance as a binder in iron ore pelletization. In the earliest stage, lignite tar/pitch was used as a binder for the agglomeration of crushed solid fuels, and then it was gradually used in making pellets or briquettes of iron ores as a binder (Yohe, 1964 Yohe, G. R., 1964, “ Binding
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Humic Acid Binder Pelletizing Fine Coal
Humic Acid Binder Pelletizing Fine Coal. viscosities of two kinds of hss under different conditions ,humic substances, extracts and iron researchgate, the professional network for scientists. because of these processes, a fine granulo-metry. co-firing of solid biomass in existing large scale coal power plants has been supported in many
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Humic Acid Binder Pelletizing Fine Coal
a humic acid binder for pelletizing of fine coal. humic substance wikipedia. humic substances are organic compounds that are important components of humus, the major organic fraction of soil, peat, and coal (and also a constituent of many upland streams, dystrophic lakes, and ocean water).for a long era in the 19th and 20th centuries, humic substances were often
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Humic Substance-based Binder In Iron Ore Pelletization: A
May 16, 2017 Due to the reducing ability and bonding effect, a humic substance-based binder has been added into iron ore pellets, both as a reductant and a binder. However, humic substance-based binders were...
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(PDF) Effect of modified humic acid binder on
Jun 05, 2014 A modified humic acid (MHA) binder was tested as a substitute for bentonite to prepare qualified specularite pellets. The results show that there is stronger chemisorption between organic...
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Effect of modified humic acid binder on pelletisation of
Apr 12, 2015 高达10%返现 A modified humic acid (MHA) binder was tested as a substitute for bentonite to prepare qualified specularite pellets. The results show that there is stronger chemisorption between organic functional groups in MHA binder molecular and specularite particles, improving the green pellet strength.
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US5916826A Pelletizing and briquetting of coal fines
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.
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Pelletization Using Humic Substance-based Binder Semantic
Jan 31, 2017 ABSTRACT 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. As a composite binder of
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Application of Modified Humic Acid (MHA) Binder in the Pelletizing
Apr 10, 2017 Request PDF Application of Modified Humic Acid (MHA) Binder in the Pelletizing Of Fluxed Hematite Concentrate Modified humic acid (MHA) binder consists of high molecular weight organic
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Application of Modified Humic Acid (MHA) Binder in the Pelletizing
Mar 04, 2017 Modified humic acid (MHA) binder consists of high molecular weight organic molecules and inorganic part. It is extracted from lignite coal with sodium hydroxide and used in pelletization of iron ore concentrates. Our previous study shows that MHA binder is also a potential binder instead of bentonite for pelletizing of fluxed hematite.
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Coal briquette binders find your best one from our examples
These types of binder can be work with better performance compared to one single binder. Examples of coal composite binders: Humic acid + clay; Sodium silicate + clay; etc. Binder rate and the coal briquette quality. Generally, the more the binder added to the coal dust, the higher the strength of the briquette.
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Humic Substance-based Binder In Iron Ore Pelletization: A Review
May 16, 2017 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.
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Effect of modified humic acid binder on pelletisation of
Apr 12, 2015 A modified humic acid (MHA) binder was tested as a substitute for bentonite to prepare qualified specularite pellets. The results show that there is stronger chemisorption between organic functional groups in MHA binder molecular and specularite particles, improving the green pellet strength. MHA binder has obvious effect on the strength and microstructure of
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Characterization of humic acids from original coal and its
Jul 28, 2021 Five coal samples obtained from Chinese coal-producing areas were oxidized by hydrogen peroxide (H 2 O 2), and humic acids (HAs) were derived from original coal and its oxidizition samples.HAs
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US5916826A Pelletizing and briquetting of coal fines using binders
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.
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Extraction and characterization of humic acid from coal for the
Jul 01, 2018 The raw material used in the extraction of humic acid (HA) was the subbituminous coal from Candiota mine (southern of Brazil), with mean diameter of 0.032 mm determined by laser granulometry (Cilas 1180). The proximate analysis of coal revealed 53.36% of ash content, 24.28% of volatile matter and 5% of total moisture.
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Coal-derived humic acid for application in acid mine
2.3 Isolation of humic acid from coal The humic acid was isolated from the coal sample as per the method reported in our previous studies (Das et al. 2013, 2015, 2017a, b). Briefly, 100 g of powder coal samples were oxidized by using 250 mL hydrogen peroxide (30%) in an ice-cold condition. After the exothermic
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Briquetting of fine coal with a binder (Conference) OSTI.GOV
Dec 31, 1996 @article{osti_414920, title = {Briquetting of fine coal with a binder}, author = {Young, B C}, abstractNote = {The increased level of fines generated by mechanized mining and modem cleaning techniques for coal is a major problem in terms of lost revenue and their potential negative impact on the environment. The largest volume of fines generation occurs in
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Weathered Coal Humic Acid — HUMICACIDS & FULVIC ACIDS
Weathered coal has high oxygen content and low calorific value, and has lost its value as a power fuel and coking coal. However, the generally weathered bituminous coal contains a large amount of regenerated humic acid (HA) and a variety of oxygen-containing reactive functional groups, such as carboxyl groups, phenolic hydroxyl groups
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pelletizing biomass and fine al vaikuendokrinologija.lt
pelletizing and briquetting of coal fines using binders Pelletizing and briquetting of coal fines using binders produced by liquefaction of biomass 1. A
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Interfacial reaction between humic acid and Ca-Montmorillonite
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
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Application of Modified Humic Acid (MHA) Binder in the Pelletizing
(2017). Application of Modified Humic Acid (MHA) Binder in the Pelletizing Of Fluxed Hematite Concentrate. Mineral Processing and Extractive Metallurgy Review: Vol. 38, No. 2, pp. 126-131.
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CN100360691C Pelletizing binder with starch and humus acid
The present invention relates to a pelletizing binder manufactured by using starch and humate and a manufacturing method for the binder. The binder is a taupe-pitchy powder in appearance, the content of a dry basis product is more than or equal to 90%, the particle size (80 to 150 meshes) is more than or equal to 95%, the swelling volume is more than or equal to 20 to 50
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US5916826A Pelletizing and briquetting of coal fines using binders
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.
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Extraction and characterization of humic acid from coal for the
Jul 01, 2018 The raw material used in the extraction of humic acid (HA) was the subbituminous coal from Candiota mine (southern of Brazil), with mean diameter of 0.032 mm determined by laser granulometry (Cilas 1180). The proximate analysis of coal revealed 53.36% of ash content, 24.28% of volatile matter and 5% of total moisture.
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Pelletizing and briquetting of coal fines using binders produced
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.
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A further study on adsorption interaction of humic acid
Feb 01, 2015 2.1.4. MHA binder. MHA binders for pelletizing are extracted from Lining brown coals of China and the total acid group, –COOH and –OH ph groups in them are found to be 5.37 mmol·g − 1, 0.55 mmol·g − 1 and 4.82 mmol·g − 1, respectively.The mass ratio of HA to FA in the MHA binder is 10:1.
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Humic Acids Agricultural Marketing Service
Leonardite is a highly oxidized low-rank coal originating from plant matter that 50 serves as a key mined source for the production of humic acids. The humification process that yields Humic acid is the major extractable fraction of humic substances and ranges from dark 93 brown to black in color. It can be extracted from soil by various
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Briquetting of fine coal with a binder (Conference) OSTI.GOV
Dec 31, 1996 @article{osti_414920, title = {Briquetting of fine coal with a binder}, author = {Young, B C}, abstractNote = {The increased level of fines generated by mechanized mining and modem cleaning techniques for coal is a major problem in terms of lost revenue and their potential negative impact on the environment. The largest volume of fines generation occurs in
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pelletization of fine coal by loesche pdf floristerialicia.es
humic acid binder pelletizing fine coal CS Cone Crusher Mobile Jaw Crusher MTW Milling Machine PEW Jaw Crusher PFW Impact Crusher VSI5X Crusher . invite bids for coal mills ellul.
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Safe and Effective Detox Binders That Actually Work
Nov 13, 2017 Here’s my suggested use for mold detox: G.I. Detox: Take one to two capsules twice daily with Upgraded Coconut Charcoal. Upgraded Coconut Charcoal: Take 1000 to 1500 mg (2-3 capsules) twice daily with water, G.I. Detox, and on an empty stomach. Ultra Binders: Mix 1 teaspoon into 8 ounces of water once daily.
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Water Soluble Humic Acid Powder (extracted humate, functional
This humic acid source is a weathered type of oxidized sub-bituminous coal rich in humic substances. This humic acid source is similar to the commonly found Leonardite (lignite coal), but our source contains a higher concentration of Humic Acids and significantly lower levels of ash and heavy metals, such as lead, arsenic, and mercury.
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Application of Modified Humic Acid (MHA) Binder in the Pelletizing
Zhou, Y., Wattanaphan, P., Kawatra, S. K. Mineral Processing and Extractive Metallurgy Review. Vol. 38 No. 2 (2017) Pages 126-131
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Humic Substance-based Binder In Iron Ore Pelletization: A Review
Due to the reducing ability and bonding effect, a humic substance-based binder has been added into iron ore pellets, both as a reductant and a binder. However, humic substance-based binders were not commonly used in pelletization since some pelletizing results indicated they were not as good asbentonite or other binders.
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