Adsorption behavior of molybdenum onto D314 ion exchange resin

Progress in Additive Manufacturing

“…The creation of a mathematical model linking the profile of a single roller with the parameters of surfacing is one of the key tasks of developing additive shaping technology. It is also important that the roller model connects not only the process parameters and the geometry of the roller but also allows you to choose the parameters of the surfacing mode taking into account the evolution of the microstructure and mechanical properties of the final products [1][2][3][4][5][6][7][8][9][10][11][12][13][14][18][19][20][21][22][23][24][25][26][27][28][29][30].…”

“…When studying and constructing a geometric model of the roller cross-section, arc current, wire feed rate, surfacing speed, arc voltage, and wire diameter are taken as input parameters of the process. Complex parameters are also used: arc power, the ratio of the wire feed rate to the surfacing speed, linear energy, and others [18,20,23,24,28,[31][32][33][34][35][36][37][38].…”

“…• the temperature of the substrate and the previous layer [28,36,38]; • changing the arc length [28,36,38]; • the heat content of the droplet and the nature of the transfer of the filler metal [16];…”

“…It is established that at a fixed value of the current strength, there is a critical surfacing rate, above which the formation of a humping defect occurs ('sawtooth seam') [18,27,28,33,[36][37][38].…”

Recovery of Mo and Ni from spent acrylonitrile catalysts using an oxidation leaching–chemical precipitation technique

“…However, these methods are still highly dependent on the leaching conditions, which typically involve a strict pretreatment procedure, high concentrations of leaching agents, high temperatures and/or high pressures. Currently, the main technical routes investigated for the separation and purification of Mo and Ni from leaching liquor are the solvent extraction method (Banda et al, 2012;Park et al, 2012), the selective precipitation method Li et al, 2012), and the resin ion-exchange method (Lu et al, 2014;Wang et al, 2014).…”