Enhanced extraction of copper from cupriferous biotite by organic intercalation

Efficient Leaching of Rubidium from Biotite by Ion Exchange without Destroying the Lamellar Crystal Structure

“…One-fourth of the Si in the hexagonal mesh layer is replaced by Al, resulting in a residual charge in the structural layer, which requires cations such as K, Na, Rb, or Cs to enter into the structural layers for balancing the charge . On the one hand, during the weathering of natural mica minerals, interlayer ions may be replaced by Na + , Cu 2+ , and Mg 2+ to form sodium mica, copper-bearing mica, and vermiculite. − On the other hand, by controlling the modification conditions, the interlayer structure of mica can be pillared or intercalated by Al 3+ , Ni 2+ , Zr 4+ , Ti 4+ , and organic ammonium to prepare environmental materials with excellent adsorption or catalytic properties. ,− The above cases indicate that the interlayer ions of mica minerals are not adequately stable, and they could be replaced or exchanged with other cations by regulating the reaction conditions. Herein, those cases provide a feasible reference for ion exchange-enhanced leaching (IEEL) of Rb occurring in the interlayers of biotite.…”

Synthesis of Tert-Octylsalicylaldoxime and Its Application in Extraction of Cu(II)

“…Because copper is one of the most important base metals, the big economic development year by year will cause a serious copper supply and demand contradiction ( Yu et al, 2020 ). Although there are many ways to extract and recover copper ions, solvent extraction is still the most effective and key technique ( Farrell et al, 2010 ; Watling et al, 2014 ; Edebali and Pehlivan, 2016 ; Wang et al, 2018 ; Elizalde et al, 2019 ; Wang et al, 2020 ).…”