发明名称 |
CATALYSEURS AMELIORES DE DESALKYLATION A L'EAU DES HYDROCARBURES AROMATIQUES (CATALYSEURS SUR ALUMINE ALPHA) |
摘要 |
A water dealkylation catalyst of aromatic hydrocarbons containing at least one metal of Group VIII and eventually, one metal of group VIIb deposited on a gamma alumina of special properties containing at least 1000 ppm of sulfate ions having undergone a pre-treatment in aqueous medium at a pH between 1 and 10 at a temperature below 100 DEG C. The catalysts contain rhodium on pre-treated gamma alumina and the bimetallic catalysts contain 2 metals of the group VIII or one metal of the group VII and one metal of the group VIIb on pre-treated gamma alumina. |
申请公布号 |
BE874635(A1) |
申请公布日期 |
1979.07.02 |
申请号 |
BE19790193852 |
申请日期 |
1979.03.06 |
申请人 |
ELF UNION |
发明人 |
M. GRAND;D. DUPREZ |
分类号 |
B01J21/04;B01J23/40;B01J23/656;B01J37/02;C07C1/00;C07C4/18;C07C4/20;C07C15/02;C07C15/04;C07C67/00;(IPC1-7):07B/;01J/ |
主分类号 |
B01J21/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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