PROCEDURE FOR PURIFICATION OF MANGANESE CONCENTRATES FROM PHOSPHORUS

摘要

FIELD: metallurgy. ^ SUBSTANCE: invention refers to metallurgy, particularly to procedure for purification of manganese concentrates from phosphorus. The procedure consists in agglomeration of concentrate with sodium salts at 950-1000C and weight ratio 1:0.4, and in successive water leaching with transfer of phosphorus into solution. Further concentrate is filtered and dried. Also leaching is carried out under effect of ultrasonic oscillations of 18103-22103 Hz per second frequency during 15-30 minutes. Finished concentrate is filtered and dried in ultrasonic fields of 18103-22103 Hz per second frequency. ^ EFFECT: upgraded quality of manganese concentrate by means of reducing concentration of phosphorus in it. ^ 2 tbl, 1 ex