Glycerol valorization using Colombian olivine as a catalyst

Villegas-Bolaños, Paola Andrea; Gallego, Jaime; Dorkis, Ludovic; Márquez, María del Carmen Bellido

doi:10.1016/j.heliyon.2023.e15561

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2024

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Cited by 2 publications

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“…Their resulting percentage content did not correspond to their ratios according to their chemical formulas; therefore, the presence of their oxides was not excluded. The ratio Si/(Si+Mg) of the serpentine group was in the range 0.4-0.6, while, in the initial sample, the corresponding value was calculated at 0.42 [7]. On the other hand, the ratio Mg/(Mg+Fe) of olivine was in the range of 0.65-0.95 and the sample's corresponding value was calculated at 0.88.…”

Section: Thermal Behaviormentioning

confidence: 89%

Thermal Treatment of Serpentinized Olivine Wastes, Obtained from Chromite Mineral Enrichment Operations, as an Example of Circular Economy in the Mining Sector

Kokkinos,

Peleka,

Zouboulis

2023

RawMat 2023

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Section: Thermal Behaviormentioning

confidence: 89%

Thermal Treatment of Serpentinized Olivine Wastes, Obtained from Chromite Mineral Enrichment Operations, as an Example of Circular Economy in the Mining Sector

Kokkinos,

Peleka,

Zouboulis

2023

RawMat 2023

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Acid Mine Drainage Neutralization by Ultrabasic Rocks: A Chromite Mining Tailings Evaluation Case Study

Kokkinos,

Kotsali,

Tzamos

et al. 2024

Sustainability

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Chromite is formed in nature in ophiolitic layers and ultrabasic rocks through fractional crystallization. The corresponding mining technologies separate the ore from these ultrabasic rocks, which are considered to be tailings for the process but may be valorized in other applications. The need to utilize this material is due to the large quantities of its production and the special management required to avoid possible secondary pollution. In the present work, the ultrabasic rocks of chromite mining were applied to acid mine drainage (AMD) neutralization. The aim was to increase the technological maturity of the method and promote circular economy principles and sustainability in the mining sector. Ultrabasic rocks were obtained from a chromite mining facility as reference material. Furthermore, an artificial AMD solution was synthesized and applied, aiming to simulate field conditions. According to the results, the sample was successfully utilized in AMD neutralization (pH 7), achieving rapid rates in the first 30 min and maximum efficiency (liquid to solid ratio equal to 8.3) at 24 h. However, the method presented a drawback since Mg was leached, even though the concentration of other typical metals contained in an AMD solution decreased.

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Glycerol valorization using Colombian olivine as a catalyst

Cited by 2 publications

References 38 publications

Thermal Treatment of Serpentinized Olivine Wastes, Obtained from Chromite Mineral Enrichment Operations, as an Example of Circular Economy in the Mining Sector

Thermal Treatment of Serpentinized Olivine Wastes, Obtained from Chromite Mineral Enrichment Operations, as an Example of Circular Economy in the Mining Sector

Acid Mine Drainage Neutralization by Ultrabasic Rocks: A Chromite Mining Tailings Evaluation Case Study

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