目前，世界上主要有六种环己胺制备方法，即苯胺催化加氢常压法和加压法、硝基环己烷还原法、氯代环己烷催化氨解法、环己烯直接氨化法、环己酮催化氨化法、环己醇催化氨化法。

At present, there are six main preparation methods of Cyclohexylamine in the world, namely, aniline catalytic hydrogenation under normal pressure and pressure, Nitrocyclohexane reduction, chlorocyclohexane catalytic ammoniation, Cyclohexene direct ammoniation, Cyclohexanone catalytic ammoniation, Cyclohexanol catalytic ammoniation.

环己胺生产工艺路线有四条，即苯胺加氢还原法、环己醇催化氨化法、环己酮催化氨化法、硝基环己烷还原法；目前世界上主要工业化方法是前两条路线，不同因为原料不一样，而选择不同的原料路线。

There are four production processes of Cyclohexylamine, namely, aniline hydrogenation reduction, Cyclohexanol catalytic ammoniation, Cyclohexanone catalytic ammoniation, and Nitrocyclohexane reduction; At present, the main industrialization methods in the world are the first two routes, and different countries choose different raw material routes due to different raw material prices.

我国一般采用苯胺催化加氢合成环己胺,同时联产二环己胺,根据反应条件和催化剂不同,可以得到不同比例的环己胺和二环己胺,若不刻意调节,一般可以副产得到10%左右的二环己胺。

In China, aniline catalytic hydrogenation is generally used to synthesize Cyclohexylamine, and Dicyclohexylamine is co produced. According to different reaction conditions and catalysts, different proportions of Cyclohexylamine and Dicyclohexylamine can be obtained. If no deliberate adjustment is made, about 10% of Dicyclohexylamine can be produced by by-product.

苯胺催化加氢常压法和加压法

Aniline catalytic hydrogenation under atmospheric and pressurized conditions

苯胺催化加氢制取环己胺与二环己胺的催化剂以主要活性元素分类，可分为钴系、钌系、镍系和钯系等四类。

The catalysts for the catalytic hydrogenation of aniline to Cyclohexylamine and Dicyclohexylamine can be classified into cobalt, ruthenium, nickel and palladium based on the main active elements.

硝基环己烷催化氨化法

Catalytic ammoniation of Nitrocyclohexane

硝基环己烷原料不易得，很少有资料报道。

The raw material of Nitrocyclohexane is not easy to obtain, and there are few data reports.

氯代环己烷催化氨解法

Catalytic ammonolysis of chlorocyclohexane

氯代环己烷虽然原料不难得到，但工艺路线拉长，且生成物中有氯化氢，对设备的要求也很高，报道资料很少。

Although the raw materials for chlorocyclohexane are not difficult to obtain, the process route is elongated, and hydrogen chloride is present in the product, requiring high equipment requirements. There are few reported materials.

环己烯直接氨化法

Direct ammoniation of Cyclohexene

以β-沸石为催化剂，NH3:C6H10=1.5，在压力55MPa,温度300℃工艺条件下，反应时间16小时，环己胺的单程收率为7.1%，故收率很低。但环己烯直接氨化法还存在着转化率低、设备利用率不高，反应条件要求比较高的缺点。

with β- With zeolite as catalyst, NH3: C6H10=1.5, under the process condition of 55MPa pressure and 300 ℃ temperature, the reaction time is 16 hours, and the single pass yield of Cyclohexylamine is 7.1%, so the yield is very low. However, the direct ammoniation of Cyclohexene still has the disadvantages of low conversion rate, low utilization rate of equipment and high requirements for reaction conditions.

环己胺的生产工艺技术及技术路线选择相关内容就讲解到这里了，希望能够给您好的帮助，还有几个线路选择可以来网站http://www.jinhao360.com看看！

The production process technology of Cyclohexylamine and the selection of Technology roadmap have been explained here. I hope it can help you. There are several other route options available on the website http://www.jinhao360.com Look!