脱硫废液中 CuSCN 和 K2 SO4的回收实验

摘要

为了利用脱硫废液中的副盐，采用沉淀-溶析结晶法处理真空碳酸钾脱硫废液。通过实验确定了最佳工艺条件，该工艺能大大降低废液中的副盐浓度，同时得到K2 SO4和CuSCN产品。%By means of precipitation-crystallization ,the secondary salt in desulfurized potassium car-bonate waste solution can be utilized to retrieve CuSCN and K 2 SO4 .The optimum technological condi-tions are obtained through experiments .In addition ,the concentration of secondary salt in waste liquid becomes much lower .