| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f169fd153a32178b81e52f3ea34ec3eb |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-51 |
| filingDate |
2011-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2014-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e6f5ef797b92d506af0e7a5bd25e6c78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_30544d49ec5465d400c3891d956bd90a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ac5e74b515358068c95da5915632299
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59cf5481a8b05e7704abce4676b8604c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c681a3b044ae00e0a47b7e94d9536d06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fc1de02a23524419e7a3f7452af697c5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61d8e19bba88a64e1e97da168ac6ec50 |
| publicationDate |
2014-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-102557988-B |
| titleOfInvention |
Preparation method of 4-nitro phthalonitrile |
| abstract |
The invention discloses a preparation method of 4-nitro phthalonitrile. The method comprises the following steps of: undergoing a nitration reaction on phthalonitrile serving as a raw material and fuming nitric acid serving as a medium under the action of a catalyst to obtain a mixture containing 4-nitro phthalonitrile; separating crude 4-nitro phthalonitrile out of the mixture; and recrystallizing the crude 4-nitro phthalonitrile with methanol to obtain refined 4-nitro phthalonitrile. The method disclosed by the invention has the advantages of short process flow, mild reaction conditions, low cost and high yield. |
| priorityDate |
2011-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |