mineral
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Chemistry
Environmentally friendly flotation methods increase mineral yield
Efficient optimization and upscaling of reagent systems in foam floating. Credit: Borhane Ben said Buoyancy is one of the most important processes for separating minerals in the raw materials industry. The appropriate selection and dosage of reagents is required to achieve the highest possible mineral concentration. This is a complex, time-consuming, cost-intensive procedure. Researchers at the Helmholtz Institute Freiberg for…
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Earth
Climatic patterns of cave mineral deposits associated with the collapse of Chinese dynasties
Changes in temperature and precipitation patterns associated with the Asian monsoon and estimates of grain harvest and economic prosperity in different Chinese dynasties over the past 2,000 years. Credit: Fan et al., 2024. The history of Chinese dynasties spans 13 reigns from 2070 BC to the abdication of the last emperor in 1912. While the factors leading to inter-dynastic transitions…
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Earth
Study finds that calcium reduces CO₂ emissions from Arctic soil through mineral formation
Written by Leibniz Zentrum Far Agralandschaftforschung (ZALF) eV Graphical summary. Credit: Environmental Science and Technology (2024). DOI: 10.1021/acs.est.4c07496 In a new study, researchers found that increasing calcium content in soil significantly reduces CO2 emissions. 50% in calcium-poor soils and 57% in calcium-rich soils. The reason is that calcium promotes the formation of the aragonite mineral, which binds CO2 and prevents…
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