Production of forsterite from serpentine – Effects of magnesium chloride hexahydrate addition

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

“…According to Figure 2, significant structural changes were obtained in the serpentinized olivine at distinct temperature ranges. Up to 180 °C the physiosorbed water molecules were removed, indicted by a slight endothermic peak The weight loss in the range 180-400 °C was attributed to crystalline water release and dehydroxylation, also an endothermic process [8]. The main dehydroxylation took place in the range 400-700 °C, since the highest mass loss was observed here.…”

Mechanistic insights into the co-recovery of nickel and iron via integrated carbon mineralization of serpentinized peridotite by harnessing organic ligands

“…The unreacted sample primarily consists of the antigorite polymorph of the serpentine mineral group (Mg 3 Si 2 O 5 (OH) 4 ) and forsterite (Mg 2 SiO 4 ) as the prominent mineral phases. 52 The morphology of the resulting post-reaction products may be impacted by the presence of various carbonate mineral phases. Prior investigations have highlighted the significance of reaction temperature in regulating the precipitation of various carbonate minerals.…”

MagWasteVal Project—Towards Sustainability of Mining Waste

“…The MagWasteVal project has examined how the proper thermal treatment can upgrade the refractory properties of waste samples collected from the mineral mine site, via the possible combination of them with various (low-cost) solid additives [7,8], i.e., Run-Of-Mine (ROM) [9], alumina, chromite ore (CO), iron oxide, and caustic calcined magnesia [10][11][12][13]. As already mentioned, the research focused on upgrading the refractory properties, regarding the final obtained product, while a combination with specific additives, such as ROM (another unexploited waste/by-product of the same mine), chromite ore (a mostly unexploited ore, abundant in Greece), and iron oxide (received as a by-product from other industrial processes) can further enhance these properties; hence, improving the framework of circular economy implementation and sustainable mining development are the main concepts of this project [14].…”