http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103420850-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-10 |
| filingDate | 2013-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103420850-B |
| titleOfInvention | A kind of continuous production method of p-Nitroaniline |
| abstract | The invention discloses a kind of continuous production method of p-Nitroaniline, comprise the following steps: (1) under an increased pressure, after weak ammonia and liquefied ammonia mixing, is mixed with the ammoniacal liquor of 30 ~ 44% concentration; (2) in the high pressure ammonia solution still of each series connection, add the ammoniacal liquor that high pressure ammonia solution kettle amasss 50 ~ 80%, regulate every platform high pressure ammonia solution still temperature to be 160 ~ 180 DEG C, pressure is 4.0 ~ 8.0MPa; (3) in first high pressure ammonia solution still, input para-nitrochloro-benzene and ammoniacal liquor react continuously, material from last platform high pressure ammonia solution still after output-response, reacted material first reclaims gaseous ammonia through release, then obtains described p-Nitroaniline and mother liquor through being continuously separated and washing.The ammoniacal liquor of reaction conditions and lower concentration that this continuous production method have employed low-temp low-pressure achieves the extensive preparation of p-Nitroaniline, and reaction conditions is safer, and running cost is lower. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105111092-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105111092-A |
| priorityDate | 2013-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.