With beryllium ore containing 0. 42% Be as raw material, the effects of sulfuric acid consumption,pretreatment temperature and solid / liquid ratio on beryllium recovery by agitation leaching were investigated,and the optimized leaching parameters were obtained. The leaching rate of beryllium reached 98. 20% after beryllium ore was pretreated at the temperature of 280 ℃,and leached with ore and sulfuric acid at a mass ratio of 1∶ 1. 5 and solid / liquid ratio at 1 ∶ 2. This processing technique doesn' t require high temperature,resulting in...