金矿浮选尾矿提取长石的试验研究OACHSSCD

The flotation tailings of a certain gold mine are mainly composed of minerals such as quartz,feldspar,and mica,according to the proportion of ore particles with a particle size less than 0.074 mm in the total grinding product,the grinding fineness of on-site gold mine flotation tailings is 85%.In order to achieve comprehensive recovery of feldspar,research on feldspar process mineralogy is carried out,and feldspar is extracted from gold mine flotation tailings through beneficiation experiments.Firstly,the decalcification flotation test,mica removal flotation test,and feldspar and quartz flotation separation test are separately carried out,then a full process test is conducted for extracting feldspar,finally magnetic separation and iron removal test is carried out for feldspar concentrate.Among them,the flotation separation of feldspar and quartz adopts a fluorine-free and acid-containing process.The closed circuit flotation test obtains a feldspar concentrate with a yield of 25.20%and a K2O+Na2O content of 10.36%,and magnetic separation of feldspar concentrate can reduce the Fe grade from 1.25%to 0.75%.