Molybdenum Metallurgy Review: Hydrometallurgical Routes to Recovery of Molybdenum from Ores and Mineral Raw Materials

A Spectroscopic Study of Uranium and Molybdenum Complexation within the Pore Channels of Hybrid Mesoporous Silica

“…In particular, molybdenum is a byproduct of uranium mining and vice versa. [8b], Therefore, the behaviour of molybdenum inside TR@SAB15 and its effect on the uranium extraction process are of interest.…”

“…This is because molybdenum(VI) has a high affinity towards oxygen and has a strongly pH‐ and concentration‐dependent speciation:, cationic (MoO 2 2+ , H 3 MoO 4 + , Mo 2 O 5 2+ ) compounds form at low pH, but neutral (H 2 MoO 4 , MoO 3 ), polynuclear (Mo 6 O 20 2– , H 2 Mo 7 O 24 4– , Mo 8 O 26 4– ) and anionic (MoO 4 2– ) speciations are also possible. Although interactions with the TR molecule are probable, other surface mechanisms, notably purely electrostatic attractions to amine or silanol groups, may be of equal importance.…”

“…The objective of the work reported here was to link the macroscopic properties of this hybrid material to the molecular features of the uranium complexes within its pores. Furthermore, as molybdenum is most often competitive with uranium at the front end of the nuclear fuel cycle and uranium is often a byproduct of molybdenum mining, molybdenum extraction was also investigated.…”

Silver-catalyzed bioleaching of copper, molybdenum and rhenium from a chalcopyrite–molybdenite concentrate

“…Brierley (1974) published results for the bioleaching of a molybdenite sample with a thermophilic archaeon, an Acidianus sp., tested at 60 C. In general, molybdenite dissolution in bacterial or archaeal cultures was clearly higher than in abiotic controls. Molybdenite is considered to be relatively recalcitrant in bioleaching systems (Lasheen et al, 2015) and the reported yields and rates have not been sufficient to warrant further development for application.…”

Recovery of molybdenum from alkali leaching solution of low-grade molybdenum concentrate by ion exchange

“…Currently, a number of investigations are being conducted to extract Mo from low-grade Mo ores [9][10][11][12][13][14][15]. Among these methods, ion exchange has great potential because it has many advantages, such as higher recovery and less pollution [16][17][18][19][20][21][22][23]. Consequently, ion exchange could be regarded as a promising method for effective recovery of Mo from low-grade Mo concentrate.…”