低汞触媒水含量的检测方法

Methods of determining the water content in low-level mercury catalyst

探讨了采用重量法测定低汞触媒水含量的缺点。通过考察重量法、仪器法及苯蒸馏法3种固体试样中水含量的测定方法,认为苯蒸馏法较适合测定低汞触媒的水含量。苯蒸馏法经改进后的测定结果能更准确地反映触媒的水含量。

The shortcomings of weight method for determining the water content in low-level mercury catalysts were discussed. Through investigating three methods for determining the water content in low-level mercury catalysts,i, e. weight method, instrument method, and benzene distillation method, benzene distillation method was found to be the suitable method. The determination results obtained by the improved benzene distillation method could more accurately reflect the water content in low-level mercury catalysts.