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Dissolution kinetics of platinum mine by-products for nature-based and engineered carbon dioxide removal
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DOI：10.1016/j.apgeochem.2026.106964.png)
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Abstract
En 中文
• PGM mine by-products release Mg and Ca under CO2-saturated conditions for CDR. • Tailings reacted faster than slags and overburden, comparable to basalts/gabbros. • Coarser particles reacted faster than finer due to chemical and physical effects. • Freshly produced tailings reacted faster than partially weathered pond tailings. • PGM by-products could enable large-scale CO2 removal under optimal conditions.
Keywords:
Mine tailings
Slags
Overburden
Dissolution rates
Carbon dioxide removal
South Africa
Enhanced weathering
Mineral carbonation
Platinum
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