机械活化苏打溶液分解白钨中矿试验研究

来源期刊：中南大学学报(自然科学版)1994年第3期

论文作者：刘茂盛 李洪桂 孙培梅 李运姣 苏鹏抟 赵中伟

文章页码：321 - 325

关键词：钨矿分解; 机械活化; 苏打分解

Key words：tunsten concentrate decomposition; mechanical activated; soda decomposition

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WO₃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%.

Abstract: 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 WO₃ in residue is0.25%in 20 continuous batches under the condition of Na₂CO₃：WO₃ mole ratio 3.0,185～195℃ and 1.5h.A tungsten recovery of 98.4%is obtained under the conditions of Na₂CO₃：WO₃ mole ratio 2.5 and 205℃. The Na₂WO₄ solution can be processed directly by ion ex-change process.