丙烯腈工艺副产物氢氰酸样品水分的分析方法研究与讨论

Determination of Moisture Content in Hydrogen Cyanide Samples Produced by Acrylonitrile Process

氰化物行业作为无机盐工业的一个重要分支,对中国经济的发展有着非常重要的作用。氢氰酸的纯度、水分、杂质含量等各项指标对工艺生产有着很大的指导作用。卡尔费休法是测定样品中水分含量的通用方法,存在于样品中的任何水分(游离水或结晶水)与已知当量的卡尔费休试剂进行定量反应进而检测样品中的水分,本文就丙烯腈工艺副产物氢氰酸水分的检测从样品采集至水分检测以及过程中可能出现的各项问题进行了详细的描述。

The cyanide industry,as an important branch of the inorganic salt industry,plays a very important role in the development of China's economy.The purity,moisture content,impurity content,and other indicators of hydrocyanic acid have a significant guiding effect on process production.The Karl Fischer method is a universal method for determining the moisture content in samples.Any moisture present in the sample(free water or crystalline water)is quantitatively reacted with a known equivalent of Karl Fischer reagent to detect moisture in the sample.This article provides a detailed description of the detection of hydrogen cyanide water,a byproduct of the acrylonitrile process,from sample collection to moisture detection,as well as various possible issues that may arise during the process.