Different ore condition , will use different ultrafine vertical mill
. This vertical mill can be trommel screen or vibration screen or high frequency vibration screen.
Primary separation: this process is for rough coltan separation, most often use coltan jig separator.The concentrate ore from them will go to final concentration machine.
Final Concentration:the concentrate ore from jig machine will go to coltan ore concentration machine shaking table for final concentration, can get high grade coltan concentrate ore.
Refining:if need very very high grade coltan, need to use the refining machine to upgrade it, usually can use high intensity dry magnetic separator to upgrade it, by removing other magnetic minerals and non-magnetic minerals, so can get much higher grade coltan.