http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2278108-C2
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-55 |
| filingDate | 2002-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2006-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f9625f003253d8f33548c708e5378fa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e4817fa4905086a504ff61f1c8e43c4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_64601c00dc2810396fd8216ca6fe4e65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5fa7ce0121454d59b73d8fcdf651ee77 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3dd065876a24272ac6f3c1993c1d2f92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a74413171c69ff227f5e6cfcaf967a5 |
| publicationDate | 2006-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2278108-C2 |
| titleOfInvention | Method for preparing 4-aminodiphenylamine |
| abstract | FIELD: organic chemistry, chemical technology. n SUBSTANCE: invention relates to a method for preparing 4-aminodiphenylamine by catalytic reduction of 4-nitrosodiphenylamine with hydrogen. The reduction reaction is carried out under conditions of the compulsory circulation of the reaction mass in organic solvent medium at temperature 45-120°C and under excess pressure 0.25-0.6 MPa with using the highly porous catalyst consisting of ceramic base and metallic palladium applied on it in the amount 1.5-3.5 wt.-%. The proposed method provides the conversion of 4-nitrosodiphenylamine as 99.9% and the yield of 4-aminodiphenylamine as 99.8%. Invention provides simplifying the technology due to absence of stages for activation and passivation of catalyst, reducing consumptions for purification of the ready product and high selectivity of the process. n EFFECT: improved preparing method. n 4 cl, 9 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2502725-C1 |
| priorityDate | 2002-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.