| Record no |
201103014049 |
| Activity status |
Active |
| Working Title |
PROCESS FOR VAPOR PHASE NITRATION OF BENZENE USING NITRIC ACID OVER MOLYBDENUM SILICA CATALYST |
| Working Inventors |
DONGARE MOHAN KERABA;PATIL PRATAP TUKARAM;MALSHE KUSUM MADHUKAR; |
| Contributing institutions |
NCL |
| Administered by |
|
| Ownership |
|
| Categories > Subjects |
Catalysis |
| Categories > Portfolio |
Petrochemicals/industrial chemicals |
| Disclosure number |
2002-INV-0011 |
| NCL No |
2002-NCL-0011 |
| CSIR No |
2002-NF-0255
|
| Priority date |
07-31-2002 |
| Country |
US |
| Application number |
10/449718 |
| Provisional filing date |
|
| Complete filing date |
05-30-2003 |
| Publication status |
Yes |
| Publication date |
09-14-2004 |
| Publication no |
6791000 B2 |
| Granted number |
6791000 |
| Granted date |
09-14-2004 |
| Final title |
PROCESS FOR VAPOR PHASE NITRATION OF BENZENE USING NITRIC ACID OVER MOLYBDENUM SILICA CATALYST |
| Final Inventors |
DONGARE MOHAN KERABA;PATIL PRATAP TUKARAM;MALSHE KUSUM MADHUKAR; |
| Abstract |
Nitration of benzene is an important reaction for the production of nitro benzene which is an important intermediate in chemical and pharmaceutical industries. Conventionally nitrobenzene is produced by liquid phase reactions employing mixed acids. A sulfuric acid nitric acid mixture is the most commonly used nitrating agent. Generation of large amount dilute sulfuric acid organic wastes and products of their neutralization makes the benzene nitration a environmentally harmful process. The present process enables the preparation of nitrobenzene by vapor phase nitration of benzene over solid acid catalyst MoO3 SiO2 using nitric acid. This process is a clean and environment friendly process without use of sulphuric acid. |
| Case status |
Granted + Inforce |
| Licensing status |
|
| Licensing case no |
|
| Client name |
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| Lead inventors |
|
| Categories > Industry > Primary |
Petrochemicals |
| Categories > Industry > other |
|