发明名称 |
CATALYST SELECTIVATION |
摘要 |
It has been discovered that catalysts may be modified by depositing an agent derivative from an agent such as an organometallic compound upon them. Such a modification gives a catalyst useful in increased selectivity to para-substituted alkyl benzenes, such as para-xylene (PX), through reacting an aromatic compound such as toluene and/or benzene with a methylating agent from hydrogen and carbon monoxide and/or carbon dioxide and/or methanol. Using these selectivated catalysts, para-substituted alkyl benzenes can be recovered in a selectivity of 80 % or greater, significantly better than the equilibrium concentration of 24 %.
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申请公布号 |
WO0074847(A8) |
申请公布日期 |
2001.05.03 |
申请号 |
WO2000US13003 |
申请日期 |
2000.05.11 |
申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
OU, JOHN;XIE, YOUCHANG;LONG, XIANGYUN;YANG, XIAWAN;GUAN, LILI;ZHAO, BIEYING |
分类号 |
B01J29/06;B01J29/40;B01J29/85;B01J37/02;B01J37/08;(IPC1-7):B01J29/40;C07C2/86;C07C15/08 |
主分类号 |
B01J29/06 |
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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