| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bf9adabc7de2eec80dda8998930aad1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c38d52b1f2dfd162e5b457c8e2513ca4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_057fffae0f2ec2d589927dcb466ef3e0 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-27 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-00 |
| filingDate |
2009-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2012-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4334a679c626fa6036995be4a59475f1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_56fb66ff90a62dd4a154b4d8a0a7308f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f56bbbbcd6a7ca628ab9ef311afb468f |
| publicationDate |
2012-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8212080-B2 |
| titleOfInvention |
Production method of xylylenediamine |
| abstract |
A method of producing xylylenediamine by the hydrogenation of dicyanobenzene obtained by the ammoxidation of xylene in a high yield while prolonging the catalyst life. In the method, a molten dicyanobenzene from which compounds having a boiling point lower than that of dicyanobenzene have been removed but compounds having a boiling point higher than that of dicyanobenzene are not removed is dissolved in a solvent containing liquid ammonia. By this dissolution, at least part of dicyanobenzene polymers precipitates as insolubles. The precipitates are removed by a solid-liquid separation. By subjecting the resulting solution containing the dicyanobenzene polymers in a reduced amount to hydrogenation, xylylenediamine is produced in a high yield and the life time of hydrogenation catalyst is prolonged. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10703852-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013296609-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3404052-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9024070-B2 |
| priorityDate |
2008-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |