FIELD: extraction of rare metals from mineral raw materials, possibly extraction of rhenium and associated metals such as bismuth, germanium, indium, gold, silver, cadmium, antimony and others from exhaust gases of acting volcanoes, for example from fumarole gases, gaseous emanation of lava flows, lava lakes and so on.
SUBSTANCE: apparatus includes housing with lid for collecting volcano gases, gas conduit for transporting volcano gases, tower connected with gas conduit and filled with adsorbent interacting with volcano gases fed from gas conduit. Tower for removing filtered gases is communicated through tube with exhaust fan connected to power generator. That tower through window is communicated with movable vessel for adsorbed mass saturated with rhenium and associated metals. Gas conduit for transporting volcano gases is in the form of tube made of stainless steel coated with heat resistant material. Diameter of gas conduit is in range 100 - 200 mm; its length is no less than 20 m. Tower is made of stainless steel, carbon or graphite plates. Tube for removing filtered gases is made of stainless steel and it has diameter about 0.15 m and length 4 - 10 m. Exhaust fan is connected with tube for discharging waste gas.
EFFECT: versatility of apparatus used for selective extraction of rhenium and associated metals from fumaroles of volcanoes for receiving rare earth metal concentrate suitable for further industrial processing.
7 cl, 1 dwg, 1 ex
