摘要
在投矿量为２００ｇ／次和１ｋｇ／次的规模下，进行了机械活化苏打溶液分解柿竹园白钨中矿的试验研究。结果表明，在苏打用量为理论量３倍、１８５～１９５℃保温１．５ｈ的条件下，连续２０次分解，渣含不溶ＷＯ＿３平均为０．２５％，钨平均分解率为９８．６％；在苏打用量为理论量２．５倍、２０５℃保温１．０ｈ的条件下，钨分解率为９８．４％。５ｋｇ／次规模下试验结果表明，钨分解率可达９８．３％。
Mechanical activated decomposition with soda solution of scheelite middle concentratecoming from Shizhuyuan Mine was studied on a scale of 200 g or 1 kg per batch.It is shownthat the average tungsten recovery is 98．6％and the average insoluble WO_3 in residue is0．25％in 20 continuous batches under the condition of Na_2CO_3：WO_3 mole ratio 3．0，185～195℃ and 1．5h．A tungsten recovery of 98．4％is obtained under the conditions of Na_2CO_3：WO_3 mole ratio 2．5 and 205℃. The Na_2WO_4 solution can be processed directly by ion ex-change process.
基金
国家"八五"科技攻关计划资助项目
关键词
机械活化
苏打
钨矿物
分解
炼钨
tunsten concentrate decomposition；mechanical activated；soda decomposition
