Application of thermal analysis to the rhenium recovery process from copper and molybdenum sulphides minerals

Review: Rhenium and its smelting and recycling technologies

“…91,92,102,103 When Mo concentrate reacts with lime and carbon, the Re in the concentrate is recovered as CFeORe 2 (s). 104 In a calcination process where the Mo concentrate is roasted with lime and/or slaked lime, the S in the Mo concentrate can be separated in the form of calcium sulfate (CaSO 4 ) (s), which suppresses the generation of the toxic SO 2 (g) that is generated during conventional oxidative roasting of Mo concentrate. However, due to the consumption of large quantities of lime and/or slaked lime, as well as 113,114,117 the disposal cost of CaSO 4 , this process is not economically feasible especially for large-scale operation.…”

“…91,92,102,103 When Mo concentrate reacts with lime and carbon, the Re in the concentrate is recovered as CFeORe 2 ( s ). 104…”

Thermo‐responsive ReO4− composite membranes with SiO2 modified: Preparation, performances and application in secondary resources

“…Fluxes of the membranes prepared at each stage were tested: firstly, the membranes were fixed on the instrument test feeler with a test pressure of 0.03 Mpa and tested after the instrument pressure and water flow were stabilized, and the membrane fluxes J were calculated according to equation (13).…”

“…Recovery of Re from rhenium‐containing secondary resources is an effective way to solve this problem. Rhenium, with huge recovery potential for ultimate recoverable up to 80%, at least 10 t of Re can be recovered annually from secondary resources containing Re 11–13 . The wide variety and different states of secondary resources generated in various fields pose an excellent challenge for Re recovery and utilization, making the existing separation methods unsatisfactory for the recovery of Re from secondary resources.…”