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Energies 2013 OPEN ACCESS energies - mdpi

Energies 2013, 6 809 Vorres et al. [12] observed that in regions where there is a large amount of iron present in the coal ash, especially in the eastern parts of the United States, in the more oxidizing environment of a boiler, coal slags behave more like a highly polymerized fluid than in the less oxidizing environments such as the

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Rheological evolution and crystallization response of ...

Rheological evolution and crystallization response of molten coal ash slag at high temperatures Article in AIChE Journal 59(8) · August 2013 with 26 Reads DOI: 10.1002/aic.14052

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THE EFFECT OF SOLIDS AND PHASE COMPOSITION ON .

composition affecting the slag's viscosity behaviour. As the majority of Australian bituminous coals have S/A ratio between 1.0 and 4.5 (Figure 1a), the coal slag compositions used in this work were chosen to cover this range. Since iron and

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Laboratory Investigation of the High Temperature ...

The coal gangue is one of the largest industrial solid waste emissions in our country at present, the research about making coal gangue as the filler to modify the properties of asphalt is still blank both at home and abroad. Using rotational viscosity test and dynamic shear rheological test (DSR) to study the high temperature rheological properties of the activated coal gangue modified ...

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PRELIMINARY ANALYSES OF COAL REFUSE MATERIAL .

PRELIMINARY ANALYSES OF COAL REFUSE MATERIAL FROM VANCOUVER ISLAND Barry Ryan1 ... now forms Slag Point. Coal from the wash plant was shipped out from the harbour. THE ENVIRONMENTAL HAZARDS OF ... measure of coal rheology) or free-swelling index (FSI) are

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Rheology and Viscosity Prediction of Bituminous Coal Slag ...

The high-temperature rheology of bituminous coal slag in the reducing atmosphere was investigated in this study. The characteristics of slag sample were analyzed by multi-techniques. The rheological measurement of the slag was carried out by a high-temperature rheometer at temperatures of 1360-1460℃. The effects of the shear rate and

Validation of the Splitting Tensile Strength Formula for ...

The adverse environmental impact of the construction industry may be mitigated through the partial replacement of cement with supplementary cementitious materials (SCM). SCMs such as ground granulated blast furnace slag (GGBS), impart many favourable fresh and long-term concrete properties. A study by Mohamed [1] assessed the splitting tensile strength of sustainable self- consolidating ...

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Flow Test for Ground Granulated Blast Furnace Slag-Fly Ash ...

Flow Test for Ground Granulated Blast Furnace Slag-Fly Ash Inorganic Polymer Mix Designed for Pre-Placed Gravel Pavement. SPECIAL FEE WAIVER ... The European Research Project GEOASH: Geopolymer Cement Based On European Coal Fly Ashes, ... The binder rheology testing was used to characterize the flow properties of different mortars and obtain a ...

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US5337824A - Coal slag universal fluid - Google Patents

A composition suitable for drilling and cementing comprising coal slag, water and drill solids, the components of the drilling fluid being chosen so as to have a dual functionality in promoting the drilling fluid and thereafter in being functional constituents of a cementitious slurry. Also, a method for drilling using a drilling fluid containing coal slag so as to lay down a filter cake which ...

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Energies | Free Full-Text | Slag Behavior in Gasifiers ...

The viscosity of slag and the thermal conductivity of ash deposits are among two of the most important constitutive parameters that need to be studied. The accurate formulation or representations of the (transport) properties of coal present a special challenge of modeling efforts in computational fluid dynamics applications. Studies have indicated that slag viscosity must be within a certain ...

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Rheological evolution and crystallization response of ...

Rheological evolution and crystallization response of molten coal ash slag at high temperatures ... including the viscosity and yield stress of the molten coal ash slag containing 0–35 ... distribution method are used to develop a semiempirical parameterization that describes the complex non‐Newtonian rheology of crystal‐bearing molten ...

  • Published in: Aiche Journal · 2013Authors: Wenjia Song · Wenjia Song · Wenjia Song · Lihua Tang · Zibin Zhu · Yoshihiko Ninom.Affiliation: Chubu University · Ludwig Maximilian University of Munich · East China University of .About: Coal gasification · Coal combustion productsGet Price

Production of Raw Materials – Polyeco Group

Polyeco Group produces alternative raw materials for the cement industry (RAWCEM). Waste rich mainly in oxides that are used by cement industry, i.e. CaO, SiO2, Al2O3 and Fe2O3, is treated in Polyeco Group's facilities and RAWCEM is produced, designed for the substitution of natural raw materials.

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THE EFFECT OF SOLIDS AND PHASE COMPOSITION ON .

composition affecting the slag's viscosity behaviour. As the majority of Australian bituminous coals have S/A ratio between 1.0 and 4.5 (Figure 1a), the coal slag compositions used in this work were chosen to cover this range. Since iron and

Get Price

Flow Test for Ground Granulated Blast Furnace Slag-Fly Ash ...

Flow Test for Ground Granulated Blast Furnace Slag-Fly Ash Inorganic Polymer Mix Designed for Pre-Placed Gravel Pavement. SPECIAL FEE WAIVER ... The European Research Project GEOASH: Geopolymer Cement Based On European Coal Fly Ashes, ... The binder rheology testing was used to characterize the flow properties of different mortars and obtain a ...

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Viscosity of slags with solids: The effect of solids ...

The viscosity of slags containing crystallized solids is always of great interest for materials scientists working in high-temperature slag processing, as it strongly affects slag flow behavior. Di...

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Table of Bond Work Index by Minerals

Table of Bond Work Index by Minerals This Table of Ball Mill Bond Work Index of Minerals is a summary as tested on 'around the world sample'. You can .

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Experimental Investigation and Modeling of the Viscosity ...

Experimental Investigation and Modeling of the Viscosity of Oxide Slag Systems. Authors; ... Zhu Z, Koyama S (2010) Flow properties and rheology of slag from coal gasification. Fuel 89:1709–1715 CrossRef Google Scholar. 22. Oh MS, Brooker DD, de Paz EF, Brady JJ, Decker TR (1995) Effect of crystalline phase formation on coal slag viscosity ...

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Slag - Wikipedia

Slag from steel mills in ferrous smelting, on the other hand, is designed to minimize iron loss and so mainly contains oxides of calcium, silicon, magnesium, and aluminium. Any sandy component or quartz component of the original ore automatically carries through the smelting process as silicon dioxide.

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Effects of Measurement Materials and Oxygen Partial ...

3 . in entrained-flow slagging gasifiers were used in this investigation. First, a representative slag composition was selected by taking an average of ash constituents derived from sub-bituminous coal feedstock from the United States, which will

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EP2132279A1 - Drilling fluid and method for drilling in ...

A drilling fluid and method for drilling in a coal containing formation. The method includes: providing a mixed metal-viscosified drilling fluid including at least 1% potassium salt; circulating the drilling fluid through the well; and drilling into a coal seam.

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Measurement and Significance of the Flow Properties of ...

Effect of crystal formation in liquid slag, 43 Effect of temperature, 45 For typical coal-ash slags, fig. 24 Typical curve for thixotropic plastic, fig. 21 Poise, definition, 5 Rotating-bob viscometer method, 35 Rheology of coal-ash slag, 39 Silica In slag, 23, 53, figs. 27, 28, table 4 Ratio to alumina, figs. 27, 28 Silicon compounds in ash, 5 ...

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