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Cyclohexylamine Industry Background
Policy has been an important driver and will continue to be conducive to the development of the cyclohexylamine industry. With the acceleration of the unified process and the support of fine management requirements, the demand is expected to usher in a rapid release; At the same time, Internet + cyclohexamine, big data and intelligent applications have entered the substantive implementation stage, and the innovative business is more clear: the mode is optimized, the system complexity is greatly improved, and the leading edge is more obvious.
It is obtained by catalytic hydrogenation of aniline and can be divided into atmospheric pressure method and pressure method. In addition, cyclohexamine can be prepared by catalytic ammonolysis of cyclohexane or cyclohexanol, reduction of nitrocyclohexane, and catalytic ammonolysis of cyclohexanone in the presence of hydrogen.
The refining process often contains impurities such as aniline and water. In the process of refining, cyclohexylamine was first transformed into hydrochloride, recrystallized with water, extracted with ether in an alkaline solution, dried with solid potassium hydroxide, and distilled in a nitrogen stream. The aniline can be removed by distillation under 4.65KPa pressure.
