半水煤气中有机硫的测定—硫酸钡比浊法

• 作 者: 施先义
• 机 构: 广西金城江氮肥厂,
• 出 处: 广西化工
• 发表日期: 1988年02期
• 关键词: 有机硫 半水煤气 比浊法 催化还原 铂丝 毫米汞柱 氮肥厂 标准曲线 转化法 试纸

半水煤气中有机硫(主要成分为COS,少量CS_2,其它有机硫微量。)的测定,目前常用的方法有:催化还原转化法和燃烧氧化法。这些方法需要用到高温管状炉、铂丝转化管等仪器。由于小氮肥厂实验室条件的限制,该项目的测定还很难普遍进行。我们用H_2O_2氧化—硫酸钡比浊法测定。本法比较简便,也不需要专门仪器设备,现总结如下。

Semi-water gas organic sulfur (the main component of COS, a small amount of CS_2, other trace organic sulfur), the current methods are: catalytic reduction conversion and combustion oxidation. These methods require the use of high temperature tubular furnace, platinum wire conversion tube and other equipment. Due to the limited laboratory conditions of the small nitrogen fertilizer plant, the determination of this project is still very difficult to carry out universally. We use H_2O_2 oxidation - barium sulfate turbidimetric method. This law is relatively simple, do not need special equipment, are summarized as follows.