发明授权
- 专利标题: Method for hydrogenating aromatic polymers in the presence of hydrocarbons which contain oxygen
- 专利标题(中): 在含有氧的烃存在下氢化芳族聚合物的方法
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申请号: US09743830申请日: 2001-01-16
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公开(公告)号: US06420491B1公开(公告)日: 2002-07-16
- 发明人: Volker Wege , Johann Rechner , Eberhard Zirngiebl
- 申请人: Volker Wege , Johann Rechner , Eberhard Zirngiebl
- 优先权: DE19833095 19980723
- 主分类号: C08F804
- IPC分类号: C08F804
摘要:
A catayltic process for the hydrogenation of aromatic polymers is disclosed. The catalyst used in the process is a metal or mixture of metals of sub-group VIII of the periodic table together with a support of silicon dioxide, aluminum oxide or a mixture thereof. The catalyst, having pores is characaterized in that the pores having diameters of 100 to 1,000 Å constitute less than 15 percent of the total volume of pores. The hydrogenation, that is carried out in the presence of at least one oxygen-containing hydrocarbon is characterized in that it is essentially complete and without significant degradation of molecular weights.