| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a5d4ea1220449dfc63c4cf7e353858e0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c38d52b1f2dfd162e5b457c8e2513ca4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3db884206c792157e527758f3f206df7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_057fffae0f2ec2d589927dcb466ef3e0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2523-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-755
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-75
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-002 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-0045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-48 |
| filingDate |
2012-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f18832b1e93d4af6f31f7811ccb696fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c0f68de13027ec639eac460af978ee35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c07c3350e1f83e6530e5db2dbf84bb91
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_109561888ba3278e447e39fe96b5c03b |
| publicationDate |
2013-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2013296609-A1 |
| titleOfInvention |
Method for producing xylylenediamine |
| abstract |
Provided is a method for stably and economically producing xylylenediamine with a high yield and long catalyst service life by hydrogenating dicyanobenzene that is obtained by ammoxidating xylene. By bringing an aqueous basic solution into contact with a dicyanobenzene-absorbed liquid, which is obtained by bringing an ammoxidation reaction gas into contact with an organic solvent, under specified temperature conditions, and subjecting a base and a carboxylic acid in the dicyanobenzene-absorbed liquid to a neutralization reaction so as to form an aqueous phase that contains a water-soluble salt, and then subjecting an organic phase and the aqueous phase to liquid-liquid separation so as to remove the aqueous phase, it is possible to remove the carboxylic acid contained in the dicyanobenzene-absorbed liquid with high selectivity while inhibiting loss of the dicyanobenzene. By subjecting the raw material dicyanobenzene, which is obtained by separating low boiling point compounds from the post liquid-liquid separation organic phase by distillation under reduced pressure, to hydrogenation, xylylenediamine is produced with a high yield and the service life of the hydrogenation catalyst is extended. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113429314-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10703852-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9822062-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016184796-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3404052-A1 |
| priorityDate |
2011-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |