日本三菱化成开发的以丁二烯为原料制备BDO的方法,分为三步:(1)丁二烯、醋酸和空气在催化剂条件下制得1,4-二乙酰氧基-2-丁烯;(2)加氢制得1,4-二乙酰氧基丁烷;(3)水解得到BDO。典型的收率以丁二烯计为80%~85%。该工艺所用原料资源丰富,无安全隐患,中间产物和产品收率较高,但工艺流程复杂,投资高、催化剂昂贵、蒸汽耗量大,只有在一定规模及丁二烯价格较低的情况下才具有竞争力。 Japan’s Mitsubishi Chemical into the development of butadiene as raw materials for the preparation of BDO method is divided into three steps: (1) butadiene, acetic acid and air in the catalyst conditions 1,4-diacetoxy-2-butene ; (2) hydrogenation of 1,4-diacetoxybutane; (3) hydrolysis to give BDO. The typical yield is 80% to 85% based on butadiene. The raw materials used in the process are rich in resources and have no potential safety hazard. The yield of intermediate products and products is high but the process is complicated, the investment is high, the catalyst is expensive, and the steam consumption is large. Only when a certain scale and the price of butadiene is relatively low Only competitive.