Open Access

Journal of Cleaner Production, volume 276, pages 123206

High-pressure HCl leaching of coal ash to extract Al into a chloride solution with further use as a coagulant for water treatment

Valeev Dmitry ^{1, 2}

Kunilova Irina ³

Shoppert Andrei ⁴

Salazar Concha Cristian ⁵

Kondratiev Alex ²

Hide authors affiliations Show authors affiliations: 5 affiliations

Laboratory of New Metallurgical Processes (#24), A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Science, 119334, Moscow, Russia |

Scientific Research Centre “Thermochemistry of Materials”, National University of Science & Technology (MISIS), 119049, Moscow, Russia |

Laboratory No. 4.2. Complex Processing of Non-traditional Mineral Materials, Research Institute of Comprehensive Exploitation of Mineral Resources-IPKON, Russian Academy of Sciences, 111020, Moscow, Russia |

⁴

Department of Non-ferrous Metals Metallurgy, Ural Federal University, 620002, Yekaterinburg, Russia |

⁵

Universidad Austral de Chile, Independencia 631, 5110566 Valdivia, Chile |

Publication type: Journal Article

Publication date: 2020-12-01

Elsevier

Journal: Journal of Cleaner Production

Quartile SCImago

Quartile WOS

Impact factor: 11.1

ISSN: 09596526, 18791786

DOI: 10.1016/j.jclepro.2020.123206

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Industrial and Manufacturing Engineering

Renewable Energy, Sustainability and the Environment

General Environmental Science

Strategy and Management

Abstract

In the present paper a novel process of the coal ash treatment was developed and analyzed: a high-pressure autoclave HCl leaching of the coal bottom and fly ash from an Omsk coal-fired power plant. This process was applied to extract aluminum from the coal ash into a chloride solution, which can further be used as a coagulant for water treatment. The Al extraction efficiency in this process can reach over 90% at certain process parameters discussed in the present study. Kinetics of the leaching process were evaluated using different kinetic (e.g. shrinking core) models. A semi-empirical equation was proposed for description of the kinetics of the leaching process as a function of the HCl concentration, solid-to-liquid ratio and temperature. Different mechanisms of the leaching process were also discussed and proposed. Water treatment by the obtained Al-chloride showed good results compared to an industrial coagulant; the treated water parameters were within the limits recommended by the World Health Organization for drinkable water.

By date By citations

Citations by journals

	1 2 3 4
Metals	Metals, 4, 9.52% Metals 4 publications, 9.52%
Fuel	Fuel, 4, 9.52% Fuel 4 publications, 9.52%
Journal of Cleaner Production	Journal of Cleaner Production, 2, 4.76% Journal of Cleaner Production 2 publications, 4.76%
Hydrometallurgy	Hydrometallurgy, 2, 4.76% Hydrometallurgy 2 publications, 4.76%
Materials	Materials, 2, 4.76% Materials 2 publications, 4.76%
Science of the Total Environment	Science of the Total Environment, 2, 4.76% Science of the Total Environment 2 publications, 4.76%
International Journal of Coal Preparation and Utilization	International Journal of Coal Preparation and Utilization, 2, 4.76% International Journal of Coal Preparation and Utilization 2 publications, 4.76%
Water (Switzerland)	Water (Switzerland), 1, 2.38% Water (Switzerland) 1 publication, 2.38%
Energies	Energies, 1, 2.38% Energies 1 publication, 2.38%
Sustainability	Sustainability, 1, 2.38% Sustainability 1 publication, 2.38%
Minerals	Minerals, 1, 2.38% Minerals 1 publication, 2.38%
MRS Communications	MRS Communications, 1, 2.38% MRS Communications 1 publication, 2.38%
Clean Technologies and Environmental Policy	Clean Technologies and Environmental Policy, 1, 2.38% Clean Technologies and Environmental Policy 1 publication, 2.38%
Environmental Science and Pollution Research	Environmental Science and Pollution Research, 1, 2.38% Environmental Science and Pollution Research 1 publication, 2.38%
Chemical Engineering Journal	Chemical Engineering Journal, 1, 2.38% Chemical Engineering Journal 1 publication, 2.38%
Waste Management	Waste Management, 1, 2.38% Waste Management 1 publication, 2.38%
Separation and Purification Technology	Separation and Purification Technology, 1, 2.38% Separation and Purification Technology 1 publication, 2.38%
Materials Research Express	Materials Research Express, 1, 2.38% Materials Research Express 1 publication, 2.38%
Resources, Conservation and Recycling	Resources, Conservation and Recycling, 1, 2.38% Resources, Conservation and Recycling 1 publication, 2.38%
Innovative Infrastructure Solutions	Innovative Infrastructure Solutions, 1, 2.38% Innovative Infrastructure Solutions 1 publication, 2.38%
ACS Omega	ACS Omega, 1, 2.38% ACS Omega 1 publication, 2.38%
Materials and Design	Materials and Design, 1, 2.38% Materials and Design 1 publication, 2.38%
Nanotechnology	Nanotechnology, 1, 2.38% Nanotechnology 1 publication, 2.38%
Transactions of Nonferrous Metals Society of China	Transactions of Nonferrous Metals Society of China, 1, 2.38% Transactions of Nonferrous Metals Society of China 1 publication, 2.38%
Powder Technology	Powder Technology, 1, 2.38% Powder Technology 1 publication, 2.38%
JOM	JOM, 1, 2.38% JOM 1 publication, 2.38%
Process Safety and Environmental Protection	Process Safety and Environmental Protection, 1, 2.38% Process Safety and Environmental Protection 1 publication, 2.38%
Materials Today: Proceedings	Materials Today: Proceedings, 1, 2.38% Materials Today: Proceedings 1 publication, 2.38%
Journal of Environmental Chemical Engineering	Journal of Environmental Chemical Engineering, 1, 2.38% Journal of Environmental Chemical Engineering 1 publication, 2.38%
	1 2 3 4

Citations by publishers

	5 10 15 20
Elsevier	Elsevier, 20, 47.62% Elsevier 20 publications, 47.62%
Multidisciplinary Digital Publishing Institute (MDPI)	Multidisciplinary Digital Publishing Institute (MDPI), 10, 23.81% Multidisciplinary Digital Publishing Institute (MDPI) 10 publications, 23.81%
Springer Nature	Springer Nature, 4, 9.52% Springer Nature 4 publications, 9.52%
IOP Publishing	IOP Publishing, 2, 4.76% IOP Publishing 2 publications, 4.76%
Taylor & Francis	Taylor & Francis, 2, 4.76% Taylor & Francis 2 publications, 4.76%
Cambridge University Press	Cambridge University Press, 1, 2.38% Cambridge University Press 1 publication, 2.38%
American Chemical Society (ACS)	American Chemical Society (ACS), 1, 2.38% American Chemical Society (ACS) 1 publication, 2.38%
Institution of Chemical Engineers	Institution of Chemical Engineers, 1, 2.38% Institution of Chemical Engineers 1 publication, 2.38%
	5 10 15 20

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Valeev D. et al. High-pressure HCl leaching of coal ash to extract Al into a chloride solution with further use as a coagulant for water treatment // Journal of Cleaner Production. 2020. Vol. 276. p. 123206.

GOST all authors (up to 50) Copy

Valeev D., Kunilova I., Shoppert A., Salazar Concha C., Kondratiev A. High-pressure HCl leaching of coal ash to extract Al into a chloride solution with further use as a coagulant for water treatment // Journal of Cleaner Production. 2020. Vol. 276. p. 123206.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1016/j.jclepro.2020.123206

UR - https://doi.org/10.1016%2Fj.jclepro.2020.123206

TI - High-pressure HCl leaching of coal ash to extract Al into a chloride solution with further use as a coagulant for water treatment

T2 - Journal of Cleaner Production

AU - Valeev, Dmitry

AU - Kunilova, Irina

AU - Shoppert, Andrei

AU - Salazar Concha, Cristian

AU - Kondratiev, Alex

PY - 2020

DA - 2020/12/01 00:00:00

PB - Elsevier

SP - 123206

VL - 276

SN - 0959-6526

SN - 1879-1786

ER -

BibTex

Cite this

BibTex Copy

@article{2020_Valeev,

author = {Dmitry Valeev and Irina Kunilova and Andrei Shoppert and Cristian Salazar Concha and Alex Kondratiev},

title = {High-pressure HCl leaching of coal ash to extract Al into a chloride solution with further use as a coagulant for water treatment},

journal = {Journal of Cleaner Production},

year = {2020},

volume = {276},

publisher = {Elsevier},

month = {dec},

url = {https://doi.org/10.1016%2Fj.jclepro.2020.123206},

pages = {123206},

doi = {10.1016/j.jclepro.2020.123206}

}

Found error?

Publisher

Elsevier

Journal

Journal of Cleaner Production

Quartile SCImago

Quartile WOS

Impact factor

11.1

ISSN

09596526 (Print)
18791786 (Electronic)

Labs

Laboratory of Sorption methods

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