Natural Dispersant in Coal Water Slurry Stabilization

Das, Dillip Kumar; Kar, Prativa; Das, Bijnyan Ranjan; Mohapatra, Ranjan K.; Das, Sudhansu Ranjan; Parhi, Pankaj Kumar; Behera, Umakanta

doi:10.1007/978-3-030-68502-7_2

Cited by 5 publications

(5 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Biosurfactants extracted from Acacia concinna, Sapindus laurifolia, Acacia auriculiformis, etc. have also been successively tried in fly ash and coal slurry stabilisation [9][10][11][12][13][14][15]. Gupta and Kumar studied the stability and flow of IOS using surfactant (Sapindus mukorossi and sodium dodecyl sulfate) mixed system [16].…”

Section: Introductionmentioning

confidence: 99%

Experimental and rheological modelling on the stabilization of iron ore slurry using a biosurfactant extracted from Aloe barbadensis Miller

Narayan Das,

K. Biswal,

Behera

et al. 2024

Bull. Chem. Soc. Eth.

View full text Add to dashboard Cite

The pipeline transportation of iron ore slurry (IOS) is an eco-friendly alternate mode to transport the raw materials to longer distance and reduce the transportation network congestion problems. Proper selection of surfactant could modify mineral’s viscosity, dispersion and wetting characteristics effectively as may be desired, which may further be monitored. A surfactant alters surface characteristics after being adsorbed onto minerals by altering the interfacial behaviour. This work is first report of the influence of a biosurfactant sourced from Aloe barbadensis Miller on the rheological behaviour of a high-grade iron ore (IO) sample at 45–72% by mass slurry concentrations range. The observed rheological parameters confirmed the non-Newtonian flow behaviour of the slurry. The collected IO and dried IOS samples were subjected to UV-Vis, XRF, PSD, XRD, SEM and EDS analyses. Experimental rheological data at varying concentrations was tested on various models to ascertain the best-fit rheological model for IOS transport. The Bingham model was found to be the most suitable to model the rheology of IOS. Experimental rheological behaviour of IOS was found to be linear with the yield stress. The study shall help to ascertain the suitability of a biosurfactant to stabilise high grade iron ores for pipeline transportation. KEY WORDS: Iron ore slurry, Aloe barbadensis, Rheological measurements, Rheological modelling Bull. Chem. Soc. Ethiop. 2024, 38(3), 615-629. DOI: https://dx.doi.org/10.4314/bcse.v38i3.6

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental and rheological modelling on the stabilization of iron ore slurry using a biosurfactant extracted from Aloe barbadensis Miller

Narayan Das,

K. Biswal,

Behera

et al. 2024

Bull. Chem. Soc. Eth.

View full text Add to dashboard Cite

show abstract

“…In addition, other parameters such as the temperature, solid concentration, slurry viscosity, and particle size distribution (PSD) 19 − 21 affect the flow behavior of the iron water slurry (IWS). 22 − 24 The interaction of dispersant or surface-active agents with the slurry particle impacts the flow behavior of the slurry. Therefore, surfactant selection is critically important.…”

Section: Introductionmentioning

confidence: 99%

“… 27 Because coal is a heterogeneous mixture of carbonaceous and mineral materials, its surface is largely hydrophobic and easily coalesces to form clusters, lowering the stability of the coal–water dispersion. 24 , 30 Interparticle interaction of coal must be mutually repulsive for steady dispersion. Surfactants and polymers adsorb effectively on the solid/liquid interface because of their amphiphilic character, rendering the surface hydrophilic or hydrophobic.…”

Section: Introductionmentioning

confidence: 99%

“…As a result, studying the rheology of the slurry to predict the pressure drop and thus pumping efficiency would be beneficial. − Surfactants have a significantly important role in the slurry transportation system. In addition, other parameters such as the temperature, solid concentration, slurry viscosity, and particle size distribution (PSD) − affect the flow behavior of the iron water slurry (IWS). − The interaction of dispersant or surface-active agents with the slurry particle impacts the flow behavior of the slurry. Therefore, surfactant selection is critically important.…”

Section: Introductionmentioning

confidence: 99%

“…Different types of slurries, such as coal–water slurry, fly ash water slurry, oil–water emulsion, clay water slurry, and food slurry, have drawn interest in industrial applications. − Coal–water slurry is a potential replacement for oil in several industrial applications and as an alternative fuel for the power sector . Because coal is a heterogeneous mixture of carbonaceous and mineral materials, its surface is largely hydrophobic and easily coalesces to form clusters, lowering the stability of the coal–water dispersion. , Interparticle interaction of coal must be mutually repulsive for steady dispersion. Surfactants and polymers adsorb effectively on the solid/liquid interface because of their amphiphilic character, rendering the surface hydrophilic or hydrophobic.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of Surfactant for Stabilization and Pipeline Transportation of Iron Ore Water Slurry: A Review

Behari

Das²,

Mohanty

2022

ACS Omega

Self Cite

View full text Add to dashboard Cite

Iron ore is generally transported using a traditional method that releases significant amounts of dust into the environment. In contrast, the pipeline transportation of slurry is noticeably a sustainable approach for efficiently transporting iron ore by reducing the environmental pollution. The interparticle interaction of the iron ore particles should be mutually repulsive for steady dispersion. Surfactants and polymers adsorb efficiently at the solid/liquid interface due to their amphiphilic character, rendering the surface hydrophilic or hydrophobic to create a stable dispersion. The present review discusses the interaction of surfactants on the stabilization of solid particles for the ease of pipeline transportation using various types of stabilization mechanisms. In addition to the effect of surfactant alone, its combination with some other parameters such as particle size distribution, temperature, solid concentration, etc. has been discussed. The review also describes the detailed classification of iron ore, surfactant, and characteristic properties of surfactants.

show abstract

Influence of surfactant on foam generation and stabilization in cement slurry

Choudhury

Jena

2023

Materials Today: Proceedings

View full text Add to dashboard Cite

Natural Dispersant in Coal Water Slurry Stabilization

Cited by 5 publications

References 32 publications

Experimental and rheological modelling on the stabilization of iron ore slurry using a biosurfactant extracted from Aloe barbadensis Miller

Experimental and rheological modelling on the stabilization of iron ore slurry using a biosurfactant extracted from Aloe barbadensis Miller

Influence of Surfactant for Stabilization and Pipeline Transportation of Iron Ore Water Slurry: A Review

Influence of surfactant on foam generation and stabilization in cement slurry

Contact Info

Product

Resources

About