http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109400482-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2523-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-08 |
| filingDate | 2018-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109400482-B |
| titleOfInvention | Method for preparing p-nitrotoluene by toluene nitration |
| abstract | The invention discloses a method for preparing p-nitrotoluene by toluene nitration, which comprises the following steps: toluene and prepared MgO-Al 2 O 3 ‑CeO 2 ‑TiO 2 Mixing the composite oxides, heating to 50-60 ℃, stirring and mixing for 6-8h, and performing ultrasonic dispersion for 1-2h to obtain a mixture; respectively adding the prepared mixture and nitric acid into a microchannel reactor, carrying out nitration reaction in the microchannel reactor, then flowing out from an outlet, standing for 24h, filtering the lower layer liquid, washing, neutralizing and drying the filtrate to obtain the nitrated substance of toluene. The method is green and environment-friendly, a large amount of waste acid cannot be generated, the reaction selectivity is high, and the prepared p-nitrotoluene has high purity and high yield. |
| priorityDate | 2018-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.