Ring formation in semi-pilot rotary kiln during salt-roasting of vanadium-bearing titaniferous magnetite concentrate

초록

The ring formation phenomena in a semi-pilot rotary kiln during the Na2CO3 salt-roasting process of vanadiumbearing titaniferous magnetite (VTM) concentrate was investigated. Ring-shaped particle agglomeration attributed to the sticking behavior of the VTM-Na2CO3 blended particles was observed during the salt-roasting process with 15 wt% Na2CO3 at 1323 K (1050 degrees C). This observation is explained by the changes in the thermophysical properties of the blends in conjunction with the pseudo-binary phase diagrams of the VTM concentrate and

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