Guiding Mineralization Process Development with Geochemical Modelling

11 Pages Posted: 18 Apr 2019 Last revised: 27 Oct 2020

See all articles by Florent Bourgeois

Florent Bourgeois

Laboratoire de Génie Chimique, Université de Toulouse, CNRS

Carine Julcour-Lebigue

Université de Toulouse

Laurent Cassayre

Université de Toulouse

France Bailly

CNRT Nickel & Son Environnement

Martin Cyr

LMDC, UPS-INSA

Solène Touzé

Bureau de Recherches Géologiques et Minières (BRGM)

Abstract

Mineralization is a CO2 utilization solution that can possibly meet all the CO2 mitigation criteria stated by the International Energy Agency, namely CO2 emissions reduction, economic self-sufficiency and scalability. Considered as a global niche markets solution, mineralization process development is particularly challenging, as its scope is territory dependent and combines feedstock selection, mineralization technology and undisruptive product valorization through local materials supply chains. Identification of potential mineralization pathways is a definite challenge. This paper argues that geochemical modelling is an indispensable guiding tool for mineralization process development. Owing to its capacity to predict product speciation for complex mineralization systems, the paper discusses a number of issues that illustrate and confirm the value of geochemical modelling for feedstock selection, product valorization and process engineering. Supporting arguments are provided in the context of the valorization of Ni-slags from the New Caledonian metallurgical industry. It is concluded that geochemical modelling is an undisputed building block for developing and modelling any mineralization process. Moreover, the paper argues that the full potential of geochemical modelling for mineralization process design requires its merging with high-level decision-making frameworks, such as regionalized life cycle assessment.

Keywords: Mineralisation, GHGT-14, CO2 utilization, geochemical modelling, attrition-leaching, Nickel slags

Suggested Citation

Bourgeois, Florent and Julcour-Lebigue, Carine and Cassayre, Laurent and Bailly, France and Cyr, Martin and Touzé, Solène, Guiding Mineralization Process Development with Geochemical Modelling. 14th Greenhouse Gas Control Technologies Conference Melbourne 21-26 October 2018 (GHGT-14) , Available at SSRN: https://ssrn.com/abstract=3365926 or http://dx.doi.org/10.2139/ssrn.3365926

Florent Bourgeois (Contact Author)

Laboratoire de Génie Chimique, Université de Toulouse, CNRS ( email )

4, allée Emile Monso
CS 84234
Toulouse, Toulouse 31432
France

HOME PAGE: http://https://lgc.cnrs.fr/en/

Carine Julcour-Lebigue

Université de Toulouse

Toulouse
France

Laurent Cassayre

Université de Toulouse

Toulouse
France

France Bailly

CNRT Nickel & Son Environnement ( email )

Nouméa, New Caledonia
France

Martin Cyr

LMDC, UPS-INSA ( email )

118
Route de Narbonne
Toulouse, Toulouse 31432
France

HOME PAGE: http://www-lmdc.insa-toulouse.fr/

Solène Touzé

Bureau de Recherches Géologiques et Minières (BRGM) ( email )

3 avenue Claude-Guillemin
BP 36009
Orléans Cedex 2, 45060
France

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