发明授权
- 专利标题： Process for the production of nitroaromatic compounds from aromatic hydrocarbons using modified clay catalysts
- 专利标题（中）： 使用改性粘土催化剂从芳烃生产硝基芳族化合物的方法
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申请号： US09047724申请日： 1998-03-25
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公开(公告)号： US06376726B1公开(公告)日： 2002-04-23
- 发明人: Boyapati Manoranjan Choudary , Mannepalli Lakshmi Kantam , Mutyala Sateesh , Kottapalli Koteswara Rao , Kondapuram Vijaya Raghavan
- 申请人： Boyapati Manoranjan Choudary , Mannepalli Lakshmi Kantam , Mutyala Sateesh , Kottapalli Koteswara Rao , Kondapuram Vijaya Raghavan
- 优先权： IN2939/Del/97 19971014
- 主分类号： C07C20500
- IPC分类号： C07C20500
摘要：
The present invention relates to a process for the production of nitro line aromatic compounds from aromatic hydrocarbons using modified clay catalysts. This invention particularly relates to a process for nitration of aromatic hydrocarbons using modified clay catalysts without using H2SO4. The process for the preparation of nitro compounds from aromatic hydrocarbons using modified clay catalysts comprises nitrating aromatic hydrocarbons using fuming nitric acid in the molar ratio of nitric acid to aromatic hydrocarbon 0.3:1 to 1.2:1 in the presence of metal exchanged clay catalyst at 25° C. to 155° C. for 0.25 to 2.0 hours and recovering the corresponding nitro compounds.
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