发明名称 |
Process for the continuous manufacture of n-butyraldehyde by selective hydrogenation of crotonaldehyde in the liquid phase in the presence of a palladium-aluminum oxide catalyst |
摘要 |
For the continuous manufacture of n-butyraldehyde by selective hydrogenation of crotonaldehyde, the hydrogenation is conducted in the liquid phase in the presence of a palladium-aluminum oxide supported catalyst containing the palladium in the outer layer of the supporting grain of a thickness of 0.05-0.2 mm. The palladium content of this catalyst is 0.1-0.6% by weight. The aluminum oxide support, with a specific pore volume of 0.4-0.6 cm3/g, has 40-60% of its pores of a diameter of >0.5 nm and an internal surface area of 130-160 m2/g. The hydrogenation is conducted under absolute pressures of 5-50 bar and at temperatures of 20 DEG -100 DEG C. The resultant n-butyraldehyde is of a high purity without interfering by-products.
|
申请公布号 |
US4450300(A) |
申请公布日期 |
1984.05.22 |
申请号 |
US19820357451 |
申请日期 |
1982.03.12 |
申请人 |
CHEMISCHE WERKE HUELS AKTIENGESELLSCHAFT |
发明人 |
FISCHER, LOTHAR;HAUSEN, MANFRED Z.;WEMBER, KURT |
分类号 |
B01J23/44;B01J35/10;C07C45/62;(IPC1-7):C07C45/62 |
主分类号 |
B01J23/44 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|