Analysis of particles size distributions in Mg(OH)2 precipitation from highly concentrated MgCl2 solutions
Description
Magnesium is a raw material of great importance, which attracted increasing interest in the last years. A promising route is to recover magnesium in the form of Magnesium Hydroxide via precipitation from highly concentrated Mg2+ resources, e.g. industrial or natural brines and bitterns. Several production methods and characterization procedures have been presented in the literature reporting a broad variety of Mg(OH)2 particle sizes. In the present work, a detailed experimental investigation is aiming to shed light on the characteristics of produced Mg(OH)2 particles and their dependence upon the reacting conditions. To this purpose, two T-shaped mixers were employed to tune and control the degree of homogenization of reactants. Particles were analysed by laser static light scattering with and without an anti-agglomerant treatment based on ultrasounds and addition of a dispersant. Zeta potential measurements were also carried out to further assess Mg(OH)2 suspension stability.
Resources
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http://data.europa.eu/88u/dataset/oai-zenodo-org-6110171 |
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http://data.europa.eu/88u/dataset/oai-zenodo-org-6110171 |
Tags
- magnesium-hydroxide
- precipitation
- mineral-recovery
- reactive-crystallization
- mixing
- nanoparticles