Study on Beneficiation of Fluorite Ore by Gravity Separation-Flotation Combined Process in Hebei
In order to realize the clean and efficient utilization of a fluorspar mine in Hebei,based on the properties study of the ore,we carried out the experimental study of gravity separation-flotation joint beneficiation.The results show that under the process of raw ore washing and screening-heavy media shallow trough separation of lump ore-heavy media cyclone separation of powder ore-middllings flotation after milling,we can obtain better separation index.The lump ore can obtain the lump concentrate with 81.63%CaF2 grade and 35.80%recovery rate by heavy media shallow trough separation,the powder ore can obtain powder concentrate with 92.61%CaF2 grade and 14.21%recovery rate by heavy media cyclone separation,the middllings can obtain acid concentrate with grade more than 96.50%by flotation,and its floatability is similar to that of the raw ore.This study has certain guiding significance for the clean and efficient utilization of similar fluorite ore resources.
fluoriteheavy medium cycloneheavy medium shallow trough separatorflotationpre-separation
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