Indirect estimate of in loco moisture via normative mineralogy calculation with correction of seasonal effect on itabirite (banded iron formation) of the Pico complex, Quadrilátero Ferrífero, Minas Gerais, Brazil

Abstract Moisture is a critical variable in iron-ore processing, handling and transportation. During beneficiation, excessive moisture may lead to screen and chute clogging. In transportation, moisture values above transportable moisture limit may cause cargo instabilities, especially in regard to v...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Giulia Marina Cerqueira Dias, Daniel Quinaud Rossi, Diniz Ribeiro
Formato:	article
Lenguaje:	EN
Publicado:	Springer 2021
Materias:	Moisture Iron ore Itabirite (Banded iron formation, BIF) Indirect estimation Mineralogical normative calculation Science Q Technology T
Acceso en línea:	https://doaj.org/article/170183d5a2ee4c61a3e6c09702d4553c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:170183d5a2ee4c61a3e6c09702d4553c
record_format	dspace
spelling	oai:doaj.org-article:170183d5a2ee4c61a3e6c09702d4553c2021-11-28T12:13:29ZIndirect estimate of in loco moisture via normative mineralogy calculation with correction of seasonal effect on itabirite (banded iron formation) of the Pico complex, Quadrilátero Ferrífero, Minas Gerais, Brazil10.1007/s42452-021-04865-12523-39632523-3971https://doaj.org/article/170183d5a2ee4c61a3e6c09702d4553c2021-11-01T00:00:00Zhttps://doi.org/10.1007/s42452-021-04865-1https://doaj.org/toc/2523-3963https://doaj.org/toc/2523-3971Abstract Moisture is a critical variable in iron-ore processing, handling and transportation. During beneficiation, excessive moisture may lead to screen and chute clogging. In transportation, moisture values above transportable moisture limit may cause cargo instabilities, especially in regard to vessels. Moisture is a non-stationary variable that depends on spatial and time distributions. Therefore, classical estimate methods such as ordinary kriging are not appropriate to calculate moisture values. Here, we present an extension of the Normative Mineralogy Calculation to indirectly estimate moisture, considering seasonal influence. This study in based on three iron-ore mines, Galinheiro, Pico and Sapecado. They are located in the Quadrilátero Ferrífero of Minas Gerais, Brazil, a world-class iron-ore district. The method proposed herein provides useful information that can be applied elsewhere. Our results indicate that compact ores show low moisture values with little seasonal influence, while soft ores and canga (iron-rich duricrust) are strongly influenced seasonally due to higher porosity and greater capacity of retaining water in the crystal structure of minerals, such as goethite. Moisture variations may exceed 2% along the year. Such variations are enough to preclude the beneficiation of certain iron ores during the rainy season. For this reason, moisture has been regarded as an essential variable in short-term mining. Article Highlights Moisture is a critical variable in iron-ore processing, handling and transportation. Moisture depends on spatial and time distributions; hence classical methods are not appropriate to quantitatively estimate it. This study proposes an indirectly estimate of moisture considering seasonal influence. Compact iron ores are little influenced seasonally, while soft iron ores and canga (duricrust) are strongly affected by the rainy season due to their higher porosity and greater capacity of retaining water. The seasonal effect on moisture is an essential variable that must be consider to better effectiveness of iron-ore mining sequencing and beneficiation.Giulia Marina Cerqueira DiasDaniel Quinaud RossiDiniz RibeiroSpringerarticleMoistureIron oreItabirite (Banded iron formation, BIF)Indirect estimationMineralogical normative calculationScienceQTechnologyTENSN Applied Sciences, Vol 3, Iss 12, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Moisture Iron ore Itabirite (Banded iron formation, BIF) Indirect estimation Mineralogical normative calculation Science Q Technology T
spellingShingle	Moisture Iron ore Itabirite (Banded iron formation, BIF) Indirect estimation Mineralogical normative calculation Science Q Technology T Giulia Marina Cerqueira Dias Daniel Quinaud Rossi Diniz Ribeiro Indirect estimate of in loco moisture via normative mineralogy calculation with correction of seasonal effect on itabirite (banded iron formation) of the Pico complex, Quadrilátero Ferrífero, Minas Gerais, Brazil
description	Abstract Moisture is a critical variable in iron-ore processing, handling and transportation. During beneficiation, excessive moisture may lead to screen and chute clogging. In transportation, moisture values above transportable moisture limit may cause cargo instabilities, especially in regard to vessels. Moisture is a non-stationary variable that depends on spatial and time distributions. Therefore, classical estimate methods such as ordinary kriging are not appropriate to calculate moisture values. Here, we present an extension of the Normative Mineralogy Calculation to indirectly estimate moisture, considering seasonal influence. This study in based on three iron-ore mines, Galinheiro, Pico and Sapecado. They are located in the Quadrilátero Ferrífero of Minas Gerais, Brazil, a world-class iron-ore district. The method proposed herein provides useful information that can be applied elsewhere. Our results indicate that compact ores show low moisture values with little seasonal influence, while soft ores and canga (iron-rich duricrust) are strongly influenced seasonally due to higher porosity and greater capacity of retaining water in the crystal structure of minerals, such as goethite. Moisture variations may exceed 2% along the year. Such variations are enough to preclude the beneficiation of certain iron ores during the rainy season. For this reason, moisture has been regarded as an essential variable in short-term mining. Article Highlights Moisture is a critical variable in iron-ore processing, handling and transportation. Moisture depends on spatial and time distributions; hence classical methods are not appropriate to quantitatively estimate it. This study proposes an indirectly estimate of moisture considering seasonal influence. Compact iron ores are little influenced seasonally, while soft iron ores and canga (duricrust) are strongly affected by the rainy season due to their higher porosity and greater capacity of retaining water. The seasonal effect on moisture is an essential variable that must be consider to better effectiveness of iron-ore mining sequencing and beneficiation.
format	article
author	Giulia Marina Cerqueira Dias Daniel Quinaud Rossi Diniz Ribeiro
author_facet	Giulia Marina Cerqueira Dias Daniel Quinaud Rossi Diniz Ribeiro
author_sort	Giulia Marina Cerqueira Dias
title	Indirect estimate of in loco moisture via normative mineralogy calculation with correction of seasonal effect on itabirite (banded iron formation) of the Pico complex, Quadrilátero Ferrífero, Minas Gerais, Brazil
title_short	Indirect estimate of in loco moisture via normative mineralogy calculation with correction of seasonal effect on itabirite (banded iron formation) of the Pico complex, Quadrilátero Ferrífero, Minas Gerais, Brazil
title_full	Indirect estimate of in loco moisture via normative mineralogy calculation with correction of seasonal effect on itabirite (banded iron formation) of the Pico complex, Quadrilátero Ferrífero, Minas Gerais, Brazil
title_fullStr	Indirect estimate of in loco moisture via normative mineralogy calculation with correction of seasonal effect on itabirite (banded iron formation) of the Pico complex, Quadrilátero Ferrífero, Minas Gerais, Brazil
title_full_unstemmed	Indirect estimate of in loco moisture via normative mineralogy calculation with correction of seasonal effect on itabirite (banded iron formation) of the Pico complex, Quadrilátero Ferrífero, Minas Gerais, Brazil
title_sort	indirect estimate of in loco moisture via normative mineralogy calculation with correction of seasonal effect on itabirite (banded iron formation) of the pico complex, quadrilátero ferrífero, minas gerais, brazil
publisher	Springer
publishDate	2021
url	https://doaj.org/article/170183d5a2ee4c61a3e6c09702d4553c
work_keys_str_mv	AT giuliamarinacerqueiradias indirectestimateofinlocomoisturevianormativemineralogycalculationwithcorrectionofseasonaleffectonitabiritebandedironformationofthepicocomplexquadrilateroferriferominasgeraisbrazil AT danielquinaudrossi indirectestimateofinlocomoisturevianormativemineralogycalculationwithcorrectionofseasonaleffectonitabiritebandedironformationofthepicocomplexquadrilateroferriferominasgeraisbrazil AT dinizribeiro indirectestimateofinlocomoisturevianormativemineralogycalculationwithcorrectionofseasonaleffectonitabiritebandedironformationofthepicocomplexquadrilateroferriferominasgeraisbrazil
_version_	1718408123866152960

Indirect estimate of in loco moisture via normative mineralogy calculation with correction of seasonal effect on itabirite (banded iron formation) of the Pico complex, Quadrilátero Ferrífero, Minas Gerais, Brazil

Ejemplares similares