Study on the ore mineral composition of Zoujiashan Deposit in Xiangshan Uranium Mine

The uranium recovery and products quality in uranium hydrometallurgy was seriously influenced with the increasing of mining depth and titanium content in Zoujiashan deposit of Xiangshan Uranium Ore.To solve the problems from minerology and provide basis for bioleaching of this ore,minerology and chemical compositions were investigated both by electron probe microanalysis and chemical analysis.The results showed that species of uranium mineral was simple with mainly of pitchblende and brannerite,and the existence form of uranium mineral was mainly as fine strings,disseminated,irregular,particles and spotted formation with some of their adjacent to phosphorite and pyrite,which was of high content in this ores and benefit to bioleaching.Uranium content was positive correlation with content of P2O5,TiO2and CaO in the mineral,which was the main reason of acid consuming while in uranium extraction.And the high content of clay in the mineral could be the reason of bad permeability.All the results above could be the basis for improving the techniques of uranium bioleaching and uranium recovery.