循环法制备30%的单氰胺溶液实验

Cyclic Preparation of 30% the Cyanamide Test

目前生产30%的单氰胺溶液均采用一次反应蒸发工艺,该生产工艺不仅操作条件要求苛刻,而且能耗高、危险性大;而利用三次循环法生产30%的单氰胺溶液,不仅操作简单容易控制,而且有效避免了现有生产工艺能耗高、危险性大的缺点,生产出的单氰胺中双氰胺、硫脲、尿素等杂质含量少,达到了优级品。

At present 30 % of the cyanamide solution is produced by a single reaction evaporation process. The production process requires not only harsh operating conditions, but also high energy consumption and high risk. And 30 % of the cyanamide solution is produced by Three- Cyclic Not only easy to operate a simple control, but also effectively avoid the existing production process energy consumption, high risk of shortcomings, to produce cyanamide solution in the dicyandiamide, thiourea, urea and other impurities, to achieve the excellent need.