http://rdf.ncbi.nlm.nih.gov/pubchem/patent/MX-PA05013788-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f7da51343341e15252262765f97827db |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D1-065 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-86 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-55 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-38 |
| filingDate | 2004-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_968f1922d49621df35f9147c036b2588 |
| publicationDate | 2006-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | MX-PA05013788-A |
| titleOfInvention | PROCESS TO PREPARE 4-AMINODYPHENYLAMINE. |
| abstract | The present invention describes a process for preparing 4-aminodiphenylamine using nitrobenzene and aniline as raw materials. The process consists of five procedures: condensation. hydrogenation, separation, recovery and recirculation of the alkali complex catalyst, and the separation, recovery and recirculation of the powder complex catalyst, as an option, at least a part of which is regenerated; the separation, recovery and recirculation of the aniline, and the separation, recovery and recirculation of the solvent for hydrogenation; purification Where the alkali complex catalyst is used as a condensation catalyst, the powder complex catalyst is used as the hydrogenation catalyst. This process can be carried out continuously. The present invention selects two catalysts of which the price is economical, the activity is high, the reaction conditions are mild, the side products are few, the preparation process can be continuous, suitable for production on an industrial scale; The content of 4-aminodiphenylamine prepared can be more than 99% (by weight), the production yield on an industrial scale can be greater than 95%. |
| priorityDate | 2003-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 141.