ISIS Neutron and Muon Source Data Journal

Tracking dynamics dampening during CO2-mineralisation to Mg-cements

Abstract: Magnesite is essential to fertilizer, paper, glass, construction; most recently as eco-cement, at Mt-Gt scales. Mg2+ sources are plentiful recoverable via mineral carbonation of Mg-silicate, whose deposits are @ 10^5 Gt with magnesite being the most stable Mg-carbonate. Yet, MgCO3-mineralisation is retarded by Mg-dehydration. Industrially magnesite is produced with high-T/P condition, unlike ambient formation in nature, accelerated by impurities in ground water (HS-, SiO4-2, RCOO-), as-yet irreproducible in the lab. Geochemical evidence indicates these electrolyte solutions catalysing magnesite formation in its 3 principal steps: 1.Mg-dehydration, 2. Nucleation, 3. growth. We propose to undertake the 1st ever neutron measurements of in-situ Mg-carbonation in industrially relevant slurries. Herein, QENS will probe changing low energy modes throughout magnesite formation

Principal Investigator: Dr Gregory Chasse
Experimenter: Dr Kun Tian
Experimenter: Dr Devis Di Tommaso
Experimenter: Mr Fu Song
Local Contact: Dr Franz Demmel
Experimenter: Dr Robert Copcutt

DOI: 10.5286/ISIS.E.RB2010696

ISIS Experiment Number: RB2010696

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Gregory Chasse et al; (2020): Tracking dynamics dampening during CO2-mineralisation to Mg-cements, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2010696

Data is released under the CC-BY-4.0 license.