In this study, solvent extraction method has been utilized for separation of molybdenum and vanadium from nitrate solution by utilizing coupling of acid and solvating extractants (D2EHPA and TBP extractants). The outcomes demonstrated that synergistic solvent extraction improves stability of formatted complexes for transfer to the organic phase. The main parameters such as pH value, concentrati...

The structure of hexa-deca-praseodymium henicosa-molybden-um hexa-penta-contaoxide, Pr(16)Mo(21)O(56), is isotypic with other rare earth representatives of formula type RE(16)Mo(21)O(56) (RE = La, Ce, Nd). It is characterized by Mo(10)O(18) (i)O(8) (a) units (where i = inner and a = apical O atoms) containing biocta-hedral Mo(10) clusters and octa-hedral MoO(6) units that share some of their O ...

the challenge to re-think post-modernity opens up if we see modernity in the light ef the phenomenological reduction. 5uspending belief in the central tenets of modern philosopf?y discloses that the so-called post• modernist pbilosopby mere!j extends the earlier projec: the failure o] calculative reason trumpeted by po-mo thinkers need not result in the end of the proiect ef rationality. rather...

Local atomic structures of Re and radiogenic Os in molybdenite from the Onganja mine, Namibia, were examined using X-ray absorption fine structure (XAFS). Rhenium LIII-edge X-ray absorption near-edge structure (XANES) and extended Xray absorption fine structure (EXAFS) show that the oxidation state of Re, the interatomic distances between Re and the neighboring atoms, and the coordination numbe...

Unprecedented imido phthalocyaninato complexes of pentavalent refractory metals [PcM(NR)Cl] (M = Mo, W, Re; R = tBu: 1, 3, 6, Mes: 2, 4, 7 or Ts: 5) have been synthesized by reductive cyclotetramerization of phthalonitrile in the presence of appropriate bis(imido) complexes of Mo, W and Re as templates. While d(1) Mo(V) and W(V) species 1-5 show distinctive EPR spectra corresponding to metal ce...

acluster[ pt (reo )(?-dppm) ][reo ],2 [dppm=ph pch ] with oxidaton of [pt re(co) ](?-dppm) ][pf ] is prepred . crystals are triclinic,pl; a= 14.154(4)?, b=14.213(3) ?,c = 20.522(4) ? , a = 78.938(14)?, ?= 75.812(19) ? , ?= 74,957(22) ? ;v = 3828.9(1 5) ? ,z =2 ; eraf-noniu cad4 difhctorneter with mo- k radiation, ? = 0.71073 ? ; r = 0.069, r = 0.077 for 284 parameters and 5414 reflections with ...

The content of molybdenum in high level vitrified waste is limited. The selective separation and recovery of Mo(VI) from HLLWs containing highly concentrated HNO3 are very important in relation to the volume reduction of radioactive wastes, partitioning of nuclides and to make efficient use of resources. The organic extractant LIX63 (5,8-diethyl-7-hydroxy-6-dodecanone oxime) is effective for th...