发明名称 |
HYDROGENATION CATALYST, METHOD OF PREPARATION AND APPLICATION OF CATALYST |
摘要 |
<p>Hydrogenation catalysts comprising metallic palladium supported on activated carbon, wherein less than 50% by weight of the palladium is comprised within a surface layer with a depth of up to 50 microns, the remainder being comprised in a layer between 50 and 400 microns deep. The catalysts can be used in particular in purifying terephthalic acid obtained by oxidation of p-xylene. They are prepared by dry impregnation of the support.</p> |
申请公布号 |
HU9801037(A3) |
申请公布日期 |
1999.03.29 |
申请号 |
HU19980001037 |
申请日期 |
1998.05.07 |
申请人 |
SUED CHEMIE MT S.R.L., MILANO |
发明人 |
|
分类号 |
B01J23/44;B01J21/00;B01J21/18;B01J23/00;B01J23/46;B01J23/89;B01J35/00;B01J35/10;B01J37/02;B01J37/025;C01B31/08;C02F1/00;C02F1/58;C02F1/72;C07B61/00;C07C51/42;C07C51/487;C07C63/26 |
主分类号 |
B01J23/44 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|